Approved Nodal Protocol Revision Requests (NPRRs)
# Title Description Date Posted Sponsor Urgent Protocol Sections Current Status Effective Date(s)
NPRR001 Section 1, Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates relevant language from the following PRRs that were approved by the Board between April 2004 and February 2006: PRR573, Mothballed Generation Resource Definition and Time to Service Updates; PRR591, Switchable Unit Declaration; PRR593, Reporting of Net Generation and Load (FKA Behind the œFenc€? Reporting of Load); and PRR611, Reporting of Operation Reserve Capability Under Severe Gas Curtailments. This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF and documented in the ERCOT Clarification Matrix for Section 1 (11/30/05) and discussed at the 3/28/06 and 3/29/06 TPTF meetings. 05/19/2006 TPTF No 1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/06 Nodal Protocols Library)

NPRR002 Section 3, Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates relevant language from the following PRRs that were approved by the Board between April 2004 and February 2006: PRR492, Plan to Alleviate Chronic Local Congestion; PRR513, Verification of Operational Model after Recurring Local Congestion Event; PRR576, Disclosure of OOME, OOMC, and RMR Service; PRR596, Mothballed Generation Resource Estimated Return to Service Dates/PRR573, Mothballed Generation Resource Definition and Time to Service Updates; PRR581, Update RMR Language Due to PUC Rule 25.502; PRR627, RMR Transmission Issues and RMR Contract Extension; and PRR633, TSP Data Information Requirements. PRR307, Controllable Resources, was part of the TNT synchronization because a portion of the PRR language in the current zonal protocols was inadvertently not included in the nodal protocols section 3.17.2(2). This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as documented in the ERCOT Clarification Matrix for Section 3 and discussed by TPTF and 3/29/06, 4/10/06 and 4/11/06. 05/19/2006 TPTF No 3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/06 Nodal Protocols Library)

NPRR003 Section 5, Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates relevant language from PRR537, Increased Congestion Management Flexibility, approved by the Board on 9/21/04. This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as documented in the ERCOT Clarification Matrix for Section 5 and discussed by TPTF on 1/9/06, 2/6/06, 4/10/06 and 4/11/06. 05/19/2006 TPTF No 5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR004 Section 8, Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates relevant language from the following PRRs that were approved by the Board between April 2004 and February 2006: PRR468, Frequency Response Requirements and Monitoring; PRR487, Black Start Resources; PRR490, LaaR Annual Testing Description; PRR535, Reactive Testing; PRR542, Clarifying the LaaR Three-Hour Limit; PRR628, ERCOT Operation Performance “ Non-Spinning Reserve Service Deployments; and PRR644, Ancillary Service Re-qualification. This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF and documented in the ERCOT Clarification Matrix for Section 8 on and discussed at the TPTF meeting on 1/9/06. 05/19/2006 TPTF No 8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/06 Nodal Protocols Library)

NPRR005 Section 7 ERCOT Staff and TPTF Clarifications This NPRR incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF on 1/23/06 and 2/6/06. This NPRR also incorporates the consensus reached by TPTF during discussions on 4/10/06, 4/24/06, 5/8/06 and 5/23/06 regarding revisions to Sections 7.4.2, PCRR Allocation Terms and Conditions, 7.5, CRR Auctions, 7.7.3, Allocation of McCamey Flowgate Rights (MCFRIs) and 7.8, Bilateral Trades and ERCOT CRR Registration System. 05/30/2006 TPTF No 7 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/06 Nodal Protocols Library)

NPRR006 Section 4 ERCOT Staff Clarifications This NPRR incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF on 1/9/06, 5/22/06 and 6/5/06, and documented in the ERCOT Clarification Matrix for Section 4. 06/12/2006 TPTF No 4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/06 Nodal Protocols Library)

NPRR007 Section 9 Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates relevant language from: (1) PRR638, Change Settlement Invoice Due Date from 16 Calendar Days to Five Bank Business Days, that was approved by the Board on 2/21/06; and (2) PRR642, Lower Limit to IDR Meters in MRE for True-Up Settlement IDR Threshold, that was approved by the Board on 3/21/06. This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF on 3/6/06, 4/10/06, 4/24/06, 5/8/06, and 6/5/06, and documented in the ERCOT Clarification Matrix for Section 9. 06/12/2006 TPTF No 9 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/06 Nodal Protocols Library)

NPRR008 PRR 307 Inclusion in Nodal Revise the necessary section of the Nodal Protocols to ensure that PRR 307 has been included. 07/17/2006 Occidental Chemical Corporation No 2, 3.7.1.2, 3.9.1, 3.16, 3.17.2, 4.4.7.2, 6.3.2, 6.5.5.2, 6.5.7.5, 6.5.7.6.1, 6.5.7.6.2.2, 8.1.2.2, 8.1.2.2.2, 8.1.2.3.2, 8.1.2.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/06 Nodal Protocols Library)

NPRR009 Section 6 PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates: (1) Relevant language from the following PRRs that were the Board between April 2004 and February 2006: · PRR468, Frequency Response Requirements and Monitoring · PRR487, Black Start Resources · PRR496, Block Bidding and Deployment of LaaRs providing Responsive Reserve Service and Non-Spinning Reserve Service · PRR499, Eliminate Fuel Shortage Notice · PRR513, Verification of Operational Model after Recurring Local Congestion Event · PRR531, Load Clarification · PRR543, Schedules and Emergency Assistance Over CFE-ERCOT DC Ties · PRR561, Remove Nuclear and Hydroelectric Generators from Automatic Deployment Software · PRR611, Reporting of Operation Reserve Capability Under Severe Gas Curtailments (2) TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF on 1/23/06, 5/22/06, 6/21/06 and 7/11/06 and documented in the ERCOT Clarification Matrix for Section 6. 07/17/2006 Trip Doggett on behalf of TPTF No 6 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/06 Nodal Protocols Library)

NPRR010 Synchronization of PRR630 and Section 3, Management Activities for the ERCOT System This NPRR incorporates PRR630, Private Use Networks, which was approved by the Board on 4/18/06. 07/17/2006 Trip Doggett on behalf of TPTF No 3.15.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/06 Nodal Protocols Library)

NPRR011 Revision to Credit Requirements Add requirement that a Counter-party in Payment Breach must provide ERCOT with information about its ESI IDs as set forth in the ERCOT Retail Market Guide. 08/01/2006 Credit Working Group No 16.11.6, 16.11.6.1, 16.11.6.1.1, 16.11.6.1.2, 16.11.6.1.3, 16.11.6.1.4, 16.11.6.1.5, Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR012 CRR Granularity in CRR Auction Revise CRR granularity from whole MWs to tenths of MWs. 08/09/2006 Beth Garza on behalf of ERCOT Staff No 7.2, 7.4.2, 7.5.5.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR013 Section 2, Zonal PRR Synchronization and ERCOT Staff Clarifications This NPRR incorporates the following: (1) relevant language from the following PRRs that were approved by the Board between April 2004 and February 2006: · PRR 518, Clarification of Requirements Related to Retail Transactions · PRR 522, Collateral Requirements and Credit Changes · PRR543, Schedules and Emergency Assistance Over CFE-ERCOT DC Ties · PRR 573, Mothballed Generation Resource Definition and Time to Service Updates · PRR 591, Switchable Unit Declaration · PRR625, Clarification of Emergency QSE Language · PRR630, Private Use Networks (2) TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF and documented in the ERCOT Clarification Matrix for Section 8 on and discussed at the TPTF meeting on 3/6/06. (3) Incorporation of revisions from the testimony of Shams Siddiqi as required by the PUCT in its Order in Docket No. 31540, Proceeding to Consider Protocols to Implement a Nodal Market in the Electric Reliability Council of Texas Pursuant to Subst. R. §25.501 (4/5/06). [Note: TPTF removed PRR307, Load Providing Regulation Services, because it is being addressed by NPRR008.] 08/09/2006 TPTF No 2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR014 Zonal PRR Synchronization for Section 16 This NPRR incorporates relevant language from the following PRRs that were approved by the Board between April 2004 and February 2006: PRR555, Modify Number of Sub-QSEs a Single Entity Can Partition; PRR591, Switchable Unit Declaration; PRR606, User Security Administrators and Digital Certificates; PRR625, Clarification of Emergency QSE Language; and PRR643, Shorten Payment Default Timelines. This NPRR also incorporates TPTF determinations regarding ERCOT Staff clarification questions as discussed by TPTF and documented in the ERCOT Clarification Matrix for Section 16 and discussed at the TPTF meeting on 3/6/06. [Note: TPTF removed PRR624, Clarification of Market Participant Default Language, for consideration at a later date.] 08/09/2006 TPTF No 16 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR015 Zonal PRR Synchronization Section 22 Attachment H This NPRR incorporates relevant language from PRR643, Shorten Payment Default Timelines, approved by the Board on 12/13/05. 08/09/2006 TPTF No 22 Attachment H Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR016 TPTF Cleanup Items for Sections 2, 3, and 16 This NPRR is proposed to change and correct language for conformance purposes. These issues were discovered during TPTF review of sectional NPRRs on July 10 and July 24 meetings. 08/09/2006 TPTF No 2.1, 3.7.1.2, 3.9.1, 3.15, 3.19.1, 3.19.3, 16.2.1, 16.2.6.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/06 Nodal Protocols Library)

NPRR017 Discontinuation of Interest Charge for Defaulting Entities at Time of Uplift This PRR allows ERCOT to cease the calculation of interest (Late Fees) for defaulting entities when the conditions initiating uplift are met. Late Fee calculations will continue for Short paying entities until uplift conditions are met. 08/10/2006 TXU Energy No 9.7.3, 9.7.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR019 Black Start Testing Requirements Specifies the requirements for starting the next start Resource; Specifies which tests are allowed to be run simultaneously. 08/23/2006 Black Start Task Force No 8.1.2.2.6 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/07 Nodal Protocols Library)

NPRR020 ERCOT Nodal Implementation Surcharge This PRR documents how ERCOT shall calculate the Nodal Implementation Surcharge (NIS) to comply with the Final Order issued in Public Utility Commission of Texas (PUCT) Docket No. 32686, Application of the Electric Reliability Council of Texas for Approval of a Nodal Market Implementation Surcharge and Request for Interim Relief, to fund implementation of the nodal market redesign. 08/28/2006 ERCOT Staff No 9.16.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR022 MIS Posting for Area Trades Changes MIS area to post trades from the MIS Secure Area to the MIS Certified Area. 09/05/2006 ERCOT No 4.4.1.2, 4.4.2.2, 4.4.7.3.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR023 Correction to Formatting of Section 8.1.2.2.1 This NPRR corrects the formatting of Section 8.1.2.2.1 so that it conforms to the rest of the Nodal Protocols. 09/06/2006 ERCOT Staff No 8.1.2.2.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR024 Synchronization of PRRs 627 and 640 This NPRR incorporates relevant language from: PRR627, RMR Transmission Issues and RMR Contract Extension, that was approved by the Board on 2/21/06; and PRR640, Update Provisions for Capacity and Energy Payments for RMR Service and Add a New Standard Form Agreement for Synchronous Service, that was approved by the Board on 3/21/06. 09/12/2006 TPTF No 3.14.1.11, 3.14.1.13, 3.14.1.16, 6.6.6.1, 22F Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR025 Definition of Annual Planning Model Provide a definition for Annual Planning Model in Section 3, Management Activities for the ERCOT System. 09/13/2006 TPTF No 3.10.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR026 Nodal Implementation Surcharge Verifiable Costs This NPRR adds nodal implementation surcharges as a verifiable cost for resources called on for reliability purposes (RUC and RMR). 09/14/2006 NRG Texas No 3.14.1.10, 5.6.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR027 Block Offers in CRR Auction Revise how CRRs may be offered in the CRR Auctions. CRRs may be bid in CRR Auctions and may be allocated in any time-of-use block. However, CRR bid awards and allocations for a one-month strip of 7x24 block will be split into one-month strips of the 3 other blocks and may be offered into subsequent CRR Auctions as the 3 separate block offers but not as a single 7x24 block. 09/14/2006 ERCOT Staff No 7.3, 7.5.2.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR028 CRR Trading in Blocks Only Revise how CRRs may be traded in the bilateral market and in CRR Auctions. This revision would limit CRR trading to time-of-use blocks for a particular date and CRR Offers in CRR Auctions to time-of-use blocks. With this revision, CRR Account Holders would not be able to trade a particular hour or a block of hours that is not one of the defined time-of-use blocks in Section 7.3 (6). 09/14/2006 ERCOT Staff No 7.2, 7.5.2.1, 7.5.3.1, 7.8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR029 Network Model Testing Clarification Divides the model testing into real time testing, and simulation testing. 09/15/2006 ERCOT Staff No 3.10.1, 3.10.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR030 Addition to CRR Account Holder Qualification Criteria Adds language describing an entity that is not eligible to own CRRs. 09/15/2006 ERCOT Staff No 16.8.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/06 Nodal Protocols Library)

NPRR031 Correction of Voltage Support Bill Determinants This NPRR corrects Voltage Support bill determinants and their calculations. 10/13/2006 TPTF No 6.6.7 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/07 Nodal Protocols Library)

NPRR032 Correction of Black Start Bill Determinants This NPRR corrects Black Start bill determinants. 10/13/2006 TPTF No 6.6.8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/07 Nodal Protocols Library)

NPRR033 Settlement of CRRs When DAM Does Not Execute This NPRR adds language and formulae that describe how ERCOT shall settle CRRs when ERCOT is unable to execute the Day-Ahead process. 10/12/2006 TPTF No 4.5.1, 6.6.10, 7.9.2.1, 7.9.2.2, 7.9.2.3, 7.9.2.4, 7.9.2.5, 9.5.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/07 Nodal Protocols Library)

NPRR034 Conforming Section 10 to Nodal Format This NPRR conforms zonal Protocols Section 10 to the standardized format used in the Nodal Protocols. 10/27/2006 ERCOT Staff No 10 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/07 Nodal Protocols Library)

NPRR035 Nodal Protocol Clarifications Required For Net Metering Provisions Revision to Protocol Section 1.3.1.1(w) adds the submittals to ERCOT by affected Entities that are required under the provisions of Protocol Section 10.3.2.3. This change captures as protected information the descriptions of the metering facilities of all Common Switchyards that contain multiple points of interconnection of Loads (ESIDs) and generation meters (EPS). Revisions to Protocol Section 3.7.1.1 add the requirement to include within the Resource Parameters submittal the methodology and, if utilized, the values of constants in any underlying net injection calculation for each Resource. Revision to Protocol Section 6.5.5.2 clarifies that net power output from generation resources may be provided to ERCOT systems as a measured or calculated value. Revisions to Protocol Section 6.6.3.1, Real-Time Energy Imbalance Payment or Charge at a Resource Node incorporate settlement methodology to be applied in the situation of a net metering installation. Revisions to Protocol Section 10.3.2.3: memorializes the requirement that affected entities provide to ERCOT metering diagrams; and adds the requirement that all Load(s) included in a net metering arrangement for an EPS Metering Facility shall only be electrically connected to the ERCOT grid through the EPS Metering point(s) for such Facility and that these Loads shall not be electrically connected to the ERCOT Grid through electrical connections that are not metered by the EPS metering point(s) for the Facility. 11/06/2006 TPTF No 1.3.1.1, 3.7.1.1, 6.5.5.2, 6.6.3.1, 10.3.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR036 Market Operations Test Environment (MOTE) in the Nodal Market In the nodal Market, Transmission Service Providers (TSPs) need access to an environment of the ERCOT EMS where the following are available for their review and analysis a)Network operations model, b) Results of the real -time State Estimator (within 5 minutes of the real time solution) including Contingency Analysis. MOTE serves as a tool to validate the integrity of the ERCOT Network Operations model, and to perform studies that facilitate better coordination of network operations between the TSPs and ERCOT. TSP need to continue to have a tool like MOTE in the Nodal Market. The new MOTE should have all the functionality that the current MOTE offers. 11/09/2006 Network Data Support Working Group No 3.10.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR037 Conforming Section 13 to Nodal Format and Changing Frequency of Transmission Loss Base Case Calculations This Nodal Protocol Revision Request (PRR) provides changes to the frequency of transmission loss base cases calculations. The NPRR also conforms Protocol Section 13 to the Nodal Protocol format. 11/20/2006 Unaccounted For Energy Task Force (UFETF) No 13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR038 Synchronization of PRR624 This NPRR incorporates relevant language from PRR624, Clarification of Market Participant Default Language, approved by the ERCOT Board of Directors on 12/13/05. 12/06/2006 TPTF No 16.2.5.2, 16.11.6, 16.11.7 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/07 Nodal Protocols Library)

NPRR039 Availability of Ancillary Service Offers for the Supplementary Ancillary Service Market This NPRR incorporates the TPTF discussions for available Ancillary Service Offers for the Supplementary Ancillary Service Market. 02/14/2007 TPTF No 6.4.8.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR041 Corrections to Section 4, Day-Ahead Operations This NPRR is proposed to change and correct language discovered during TPTF review of the associated business requirements. 02/19/2007 TPTF No 4.4.9.2.1, 4.6.2.3, 4.6.2.3.1, 4.6.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR042 Corrections to Section 5, Transmission Security Analysis and Reliability Unit Commitment This NPRR is proposed to change and correct language discovered during TPTF review of the associated business requirements. 02/19/2007 TPTF No 5.6.3, 5.7.1.3, 5.7.2, 5.7.3, 5.7.4.1.1, 5.7.4.1.2, 5.7.4.2, 5.7.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR043 Corrections to Section 7, Congestion Revenue Rights This NPRR is proposed to change and correct language discovered during TPTF review of the associated business requirements. 02/21/2007 TPTF No 7.9.1.1, 7.9.1.2, 7.9.1.3, 7.9.1.4, 7.9.1.5, 7.9.1.6, 7.9.2.2, 7.9.2.3, 7.9.3.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR044 Corrections to Section 6, Adjustment Period and Real-Time Operations This NPRR is proposed to change and correct language discovered during TPTF review of the associated business requirements. 02/22/2007 TPTF No 6.6.3.2, 6.6.5.4, 6.6.9.1, 6.6.9.2, 6.6.10 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR045 Wind Power Forecasting 1. Add definitions for terms used in more than one section2. Describe the process for developing the 80% confidence level forecast for wind-power generators 02/23/2007 The Wind Coalition No 2.1, 4.2.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/07 Nodal Protocols Library)

NPRR046 Real-Time ICCP Communications Only This NPRR revises how QSEs and TSPs communicate with ERCOT in Real-Time. This Revision Request requires that all Real-Time communications use Inter-Control Center Protocol (ICCP) for all communications. This will retire the existing RTU infrastructure used by ERCOT and its market participants for data exchange. Market transactions using XML and/or MIS, and RTU communications between Market Participants and their field equipment, will remain unchanged. 02/27/2007 ERCOT No 3.10.4, 3.10.7.4, 6.3.2, 6.5.7.4, 6.5.7.6.1, 6.5.7.6.2.1, 6.5.7.6.2.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/07 Nodal Protocols Library)

NPRR047 Credit Monitoring -- ERCOT Staff Clarifications This NPRR incorporates the following topics: 1. Moving definition of Counter-Party from Section 16, Registration and Qualification of MPs, to Section 2, Definitions and Acronyms. 2. Validation and enforcement of credit constraints at the Counter-Party level in the DAM and CRR Auctions. 3. Provision of separate credit limit for DAM and CRR Auctions. 4. Clarification on calculating credit exposure and Available Credit Limit on Business Days. 5. Clarification on the language regarding Today’s Value of PTP Obligation, PTP Option and Flow Gate Rights. 6. Clarification on the terminology for pricing components of Mark to Market Value for Flow Gate Rights 7. Clarification on the flexibility to modify weighting factors associated with pricing components of Mark to Market Value for PTP Obligation, PTP Option and Flow Gate Rights. 8. Tracking Payment Breach, Late Payment by Market Participants instead of by Counter-Party. 9. Moving and clarifying language about forfeiture of CRRs from Section 9.9.1 to a new sub-section on "Declaration of forfeit of CRRs" in the Payment Breach section. 03/02/2007 TPTF No 2.1, 4.4.10, 7.5.5.3, 9.9.1, 16.11, 16.11.4.3, 16.11.4.4, 16.11.4.5, 16.11.4.6, 16.11.4.7, 16.11.6, 16.11.7, 16.11.8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR048 Revised Wording of Opportunity Outages for Transmission Facilities The proposed Opportunity Outages rewording will allow ERCOT to grant a TSP permission to work on TSP-owned equipment that can only be maintained when a Resource is off-line for a Forced, Planned or Maintenance Outage. 03/08/2007 Trip Doggett on behalf of TPTF No 2.1, 3.1.6.8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR049 Generation Subsystem Changes to Incorporate Approved Whitepapers Generation Subsystem changes to incorporate TPTF-approved whitepapers on the following topics: 1) Generation Resource Responsive Reserve Deployment and Recall; 2) Ancillary Service Schedules and Deployment Telemetry; 3) Non-Spin Deployment Notification and Availability; 4) SCED Base Point Dispatch; and 5) Base Point above HASL Flags. 03/08/2007 Trip Doggett on behalf of TPTF No 2.1, 3.9.1, 3.9.2, 6.5.5.2, 6.5.7.2, 6.5.7.3, 6.5.7.4, 6.5.7.5, 6.5.7.6.1, 6.5.7.6.2.2, 6.5.7.6.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR050 Clarifications for HSL Values for WGRs and WGR Values to be Used in the RUC Capacity Short Calculation The proposed clarifications: 1) Eliminate 4.2.2(6) because of inconsistency with Protocol language in 3.9.1(7), Current Operating Plan (COP) Criteria ("A QSE representing a Wind-Powered Generation Resource (WGR) must enter an HSL value that is less than or equal to the amount for that Resource from the most recent Wind-Powered Generation Resource Production Potential provided by ERCOT"); 2) Eliminate 4.2.2(7) because the settlement information is described in 5.7.4.1, Capacity Shortfall Ratio Share; and 3) Revise 5.7.4.1.1 to clarify how to do the settlements. 03/12/2007 Trip Doggett on behalf of TPTF No 4.2.2, 5.7.4.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR051 Removal of the Pseudo Resource Requirement in the Real Time Security Constrained Economic Dispatch (SCED) Process This NPRR removes the requirement to employ a pseudo resource from the SCED Process in Section 6.5.7.3. 03/12/2007 Trip Doggett on behalf of TPTF No 6.5.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR052 Settlement for Non-Modeled Generators Revise Real-time Energy Imbalance settlement to include payment of energy produced by Non-Modeled Generators 03/12/2007 TPTF No 6.6.3.2, Real-Time Energy Imbalance Payment or Charge at a Load Zone Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR054 Update of Nodal Protocols to Comply with NERC Name Change – Companion to PRR711 This Nodal Protocol Revision Request (NPRR) updates Nodal Protocol References to reflect the recent NERC name change. NERC recently changed its name from North American Electric Reliability Council to North American Electric Reliability Corporation. 03/14/2007 ERCOT No 1.2, 1.3.6, 2.2, and 6.5.9.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/07 Nodal Protocols Library)

NPRR055 Correction of Voltage Support QSE Total Bill Determinants This NPRR corrects Voltage Support QSE Total bill determinants and their calculations for the purpose of breaking out the Voltage Support Charge Types on the settlement statement. 03/27/2007 Transition Plan Task Force (TPTF) No 6.6.7, 9.5.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR057 Posting Requirements Pursuant PUC Subst. R. 25.505 This NPRR implements posting requirements outlined in new P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability of Texas Power Region. 04/09/2007 TPTF No 3.2, Analysis of Long-Term Resource Adequacy; 3.2.1, Calculation of Aggregate Generating Capacity; 3.2.2, Long-Term Demand Forecasts; 3.2.3, System Adequacy Report; 3.2.4, Statement of Opportunities (New); 3.12, Load Forecasting; 3.12.1, Mid-Term Load Forecast; 3.12.2, Long-Term Load Forecast 3.13, Renewable Production Potential Forecasts; 4.2.3, Posting Forecasted ERCOT System Conditions. Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR058 Clarification of Standard Form Market Participant Agreement Remove discrepancies between Section 16, Registration and Qualification of MPs, and Section 22 -- former Attachment H, now Attachment B, Standard Form Market Participant Agreement. The primary change is removing legacy references to individual Agreements that have since been consolidated into a single Standard Form Market Participant Agreement. 04/10/2007 TPTF No 16.1, Qualification, Registration, and Execution of Agreements; 16.2, Registration and Qualification of Qualified Scheduling Entities; 16.3, Registration of Load Serving Entities; 16.4, Registration of ERCOT and Non-ERCOT Transmission and Distribution Service Providers; 16.5, Registration of a Resource Entity; and 22, Attachment H, Standard Form Market Participant Agreement Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR059 Reconfiguring the Annual CRR Auction This Nodal Protocol Revision Request (NPRR) reconfigures the annual Congestion Revenue Right (CRR) Auction from a 24-month simultaneous optimization of three Time Of Use (TOU) blocks to separate optimizations for each TOU block for each year. 05/01/2007 Trip Doggett on behalf of TPTF No 7.3, 7.5.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR060 Hub Clarification This Nodal Protocol Revision Request (NPRR) clarifies the concept of "Hub Bus" allowing for direct assignment of Electrical Buses to a Hub and clarifies the number of Hub Buses in a Hub based on operating model Electrical Bus configuration. 05/01/2007 Trip Doggett on behalf of TPTF No 2.1, 3.5, 3.5.1, 3.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR061 Scarcity Pricing Mechanism NPRR061 revises the ERCOT Nodal Protocols to provide for a scarcity pricing mechanism as required by subsection (g) of P.U.C. SUBST. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region. 05/02/2007 TPTF No 2.1, Definitions; 2.2, Acronyms and Abbreviations; 4.4.7.2.1, Ancillary Service Offer Criteria; 4.4.9.3.1, Energy Offer Curve Criteria; 4.4.9.5.1, DAM Energy-Only Offer Curve Criteria; 4.4.11, System-Wide Offer Caps (New); 4.4.11.1, Scarcity Pricing Mechanism (New); and 6.5.7.3, Security Constrained Economic Dispatch Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR062 Constraint Competitiveness Test This revision provides clarification on the process for determining competitive constraints as defined in Section 3.19, Constraint Competitiveness Test (CCT). 05/18/2007 Trip Doggett on behalf of TPTF No 3.19, Constraint Competitiveness Tests Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR063 Electrical Bus Clarification This NPRR provides clarification on designation of Electrical Buses within the Network Operations Model that will meet the needs of the Nodal Market. 05/24/2007 TPTF No 2.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR064 Modeling of Generic Transmission Constraints This Nodal Protocol Revision Request (NPRR) provides for the definition of and posting of Generic Transmission Limits (GTLs) in Network Operations Modeling requirements. 05/29/2007 Trip Doggett on behalf of TPTF No 2.1, 2.2, 3.10, 3.10.7.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR065 Synchronization of PRR647, Gross and Net MW/Mvar Data Reporting This NPRR synchronizes relevant language from PRR647, Gross and Net MW/Mvar Data Reporting, that was approved by the ERCOT Board (Board) on 1/16/07, with NPRR035, Nodal Protocol Clarifications Required For Net Metering Provisions, and incorporates these changes into the Draft Nodal Protocols. 06/04/2007 TPTF No 3.7.1.1, Generation Resource Parameters and 6.5.5.2, Operational Data Requirements Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR066 Synchronization of PRR698, Remove Default QSE Provisions This NPRR incorporates relevant language from PRR698, Remove Default QSE Provisions, which was approved by the ERCOT Board of Directors on 12/12/06. This NPRR revises provisions for the Emergency and Virtual Qualified Scheduling Entity (QSE) to allow them to provide for Resource Entities and Load Serving Entities (LSEs) in the event that their QSEs are suspended. This NPRR also removes the Default QSE concept, including all references to a Default QSE. 06/13/2007 TPTF No 16.2.1, 16.2.5, 16.2.6.1, 16.2.6.2, 16.2.6.3, 16.11.6.1.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR067 Modeling of Private Use Networks This Nodal Protocol Revision Request (NPRR) provides a mechanism for ERCOT to model generation located within a Private Use Network. 06/15/2007 Trip Doggett on behalf of TPTF No 2.1, 3.10.7.2, 3.10.7.3 (new), 3.10.7.3, 3.10.7.4, 3.10.7.4.1, 3.10.7.4.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR068 Settlement Clarifications to Startup Eligibility, Decommitment Payments and Corrections to RUC Formulas This NPRR Clarifies the sections that dealing with whether a Resource is Eligible for startup compensation in the Day-Ahead and Reliability Unit Commitment (RUC) Make-Whole payment calculations; modifies the definition of the hours used in calculating the RUC Decommitment Payment in Section 5.7.3; and Corrects the parentheses in three formulas in Section 5.7.1.1. 06/15/2007 ERCOT Staff No 4.4.9.2, Startup Offer & Minimum-Energy Offer; 4.4.9.2.3, Startup Offer & Minimum-Energy Offer Generic Caps; 4.6.2.3 Day-Ahead Make-Whole Settlements; 5.6.2, RUC Startup Cost Eligibility; 5.7.1.1, RUC Guarantee; and 5.7.3, Payment When ERCOT Decommits a QSE-Committed Resource Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR069 Changes to SURAMP This NPRR revises the Security Constrained Economic Dispatch (SCED) Up Ramp Rate (SURAMP) formulation. This change removes reserving part of Ramp Rate for Responsive Reserve Service (RRS) deployment by Load Frequency Control (LFC) 06/15/2007 ERCOT Staff No 6.5.7.2, Resource Limit Calculator Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR070 Changes to DAM Clearing Start Time Allocation of McCamey Flowgate Rights in Day-Ahead Market This Nodal Protocol Revision Request (NPRR) changes the requirement for DAM clearing to start at 1000 in the Day-Ahead Market to allow time for submission validations. This NPRR incorporates the TPTF discussions for Allocation of McCamey Flowgate Rights (MCFRIs) in Day-Ahead. 06/18/2007 ERCOT No 4.5.1, 7.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR071 Trade Validation by Matching Identical Trade Submissions This NPRR incorporates the TPTF determination regarding Trade confirmation. 06/18/2007 ERCOT Staff No 4.4.1.2, 4.4.2.2, 4.4.7.3.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR072 Day-Ahead RMR Settlement Clarifications This NPRR modifies the Day-Ahead Make-Whole Payment calculation such that an Amount data cut is not calculated for an eligible Reliability Must Run (RMR) Unit; consistent with the Protocol requirement prohibiting RMR Units from receiving payment through the Day-Ahead Make Whole Payment. 06/18/2007 ERCOT Staff No 4.6.2.3.1 Day-Ahead Make-Whole Payment; and 4.6.2.3.2 Day-Ahead Make-Whole Charge Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR073 Update of Sections 6.6 and 6.7 Due Requirements, Use Cases and CSDs This NPRR revises Sections 6.6, Settlements Calculations for the Real-Time Energy Operations, and 6.7, Real-Time Settlement Calculations for the Ancillary Services, to align them to the Requirements, Use Cases and Conceptual System Designs (CSDs). 06/19/2007 ERCOT Staff No 6.6, 6.7 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR075 Section-9, Settlements Clean-up This Nodal Protocol Revision Request (NPRR): 1. Clarifies the contents of the various invoices. 2. Clarifies the payment dates for the various invoices. 3. Corrects the list of Day Ahead Market (DAM) Settlement Charge Types. 4. Specifies contents and timing of Reat Time Market (RTM) Uplift Invoices5. Corrects the Real Time Adjusted Meter Load (RTAML) definition for the ERCOT System Administrative Charge 06/20/2007 Jeyant Tamby, ERCOT No 9 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/07 Nodal Protocols Library)

NPRR076 Synchronization of Emergency Electric Curtailment Plan (EECP) Event Realignment This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with PRR682, EECP Event Realignment, which was approved by the ERCOT Board on November 14, 2006. 07/02/2007 TPTF No 2.1, 2.2, 6.5.7.5, 6.5.9.4, 6.5.9.4.1 (new), 6.5.9.4.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/08 Nodal Protocols Library)

NPRR077 Incorporating the ERCOT Internal Audit Department and Other Clarifications This PRR incorporates the ERCOT Internal Audit Department into the Protocols, clarifies the audits to be performed, and the treatment of audit results. Responsibility for performing the annual operational or "settlements" audit, otherwise commonly known as the Statement on Auditing Standards (SAS) No. 70 ("SAS 70"), Type II report, will continue to be performed by an external independent certified public accounting firm. Upon approval of this PRR, responsibility for performing the other audits referenced in Protocol Section 1.4, Operational Audit, will transition to the Internal Audit Department. 08/07/2007 ERCOT Staff No 1.4.2, 14.3.1, 1.4.3.1.1, 1.4.4, 1.4.5, 1.4.6 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/08 Nodal Protocols Library)

NPRR078 Simplifying the Dispute Process This PRR removes the concept of "timely" disputes that can still be worked by ERCOT, and removes the concept of disputing settlement statements. Instead, disputes that are filed with enough time for ERCOT to work them, as defined in the Protocols modified by this revision, will be worked and included in the next settlement statement if granted. 08/13/2007 Settlements & Data Aggregation Working Group No 9.1.2, Settlement Calendar; 9.5.6, RTM Resettlement Statement ;9.14.2, Notice of Dispute; 9.14.3, Contents of Notice; and 9.14.4, ERCOT Processing of Disputes Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/08 Nodal Protocols Library)

NPRR080 Revised Wording of Protocol Section 3.1.5.1 The proposed rewording of Protocol Section 3.1.5.1 will allow ERCOT to treat electrical buses as consequentially outaged transmission elements in the ERCOT Outage Scheduler. 08/16/2007 CenterPoint Energy No 3.1.5.1, ERCOT Evaluation of Planned Outage and Maintenance Outage of Transmission Facilities Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/07 Nodal Protocols Library)

NPRR081 Automatic Voltage Regulator (AVR) Status This NPRR adds a requirement for telemetry of Generation Resource AVR status to comply with North American Electric Reliability Corporation (NERC) Reliability Standards. 08/31/2007 ERCOT Staff No 3.15.3, QSE Responsibilities Related to Voltage Support Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR082 Section 8, Performance Monitoring and Compliance, Revisions to Monitoring and Qualification Tests This NPRR makes the testing and compliance requirements consistent with NPRR049, Generation Subsystem Changes to Incorporate Approved Whitepapers, and the white papers "Generation Resource Responsive Reserve Deployment and Recall" and "Non-Spin Deployment Notification and Availability" approved by TPTF located at http://nodal.ercot.com/docs/pd/mms/index.html#oth. 09/11/2007 TPTF No 8.1.2.2.3, 8.1.2.2.4, 8.1.2.4.2, 8.1.2.4.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/08 Nodal Protocols Library)

NPRR083 Remove Real-Time Energy Charge for a BLT from List of Real-Time Charge Types This NPRR removes Real-Time Energy Charge for a Block Load Transfer Point from the list of charge types for the Real-Time Market. 10/11/2007 ERCOT Staff No 9.5.3, Real-Time Market Settlement Charge Types Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/08 Nodal Protocols Library)

NPRR084 Creating Amendment to Standard Form Market Participant Agreement This NPRR adds a new form, Amendment to Standard Form Market Participant Agreement, to the ERCOT Protocols. 10/23/2007 ERCOT Staff No 22B, C, F Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/08 Nodal Protocols Library)

NPRR085 Revision of Digital Certificate Procedures This NPRR documents, in Section 16.11.3, Market Participant Audits of User Security Administrators and Digital Certificates, the requirement that Market Participants generate their own list of USA and Digital Certificate holders for audit purposes and use an automated process to manage (i.e., enroll, renew, revoke, and audit) their Digital Certificates. This NPRR also clarifies the language describing the responsibilities of the Market Participant, its USA and ERCOT. 10/24/2007 ERCOT Staff No 16.12 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/08 Nodal Protocols Library)

NPRR086 Settlement Clarifications to RUC Capacity Shortfall Ratio Share Formula This NPRR revises Section 5.6.4.1.1 to clarify that the Capacity Shortfall Ratio Share includes DC Tie imports and exports; modifies the definition of the variable HASLADJ (High Ancillary Service Limit) used in calculating the Reliability Unit Commitment (RUC) Capacity Shortfall Ratio Share in Section 5.7.4. ; and modifies the definition of the variable LSL to reflect that its value is the same as the Low Sustained Limit (LSL) in the Current Operating Plan (COP). 10/25/2007 TPTF No 5.7.1.1, RUC Guarantee; 5.7.1.2, RUC Minimum-Energy Revenue; 5.7.1.3, Revenue Less Cost Above LSL During RUC-Committed Hours; 5.7.1.4, Revenue Less Cost During QSE Clawback Intervals; 5.7.3, Payment When ERCOT Decommits a QSE -Committed Resource; and 5.7.4.1.1, Capacity Shortfall Ratio Share Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/08 Nodal Protocols Library)

NPRR087 Market Monitor Terminology Change This Nodal Protocol Revision Request (NPRR) replaces the term Wholesale Electric Market Monitor (WEMM) with the term Independent Market Monitor (IMM). 10/30/2007 ERCOT Staff No 1.1, Summary of the ERCOT Protocols Document; 1.3, Confidentiality ;1.3.1, Restrictions on Protected Information; 1.3.6, Exceptions; 2, Definitions and Acronyms; 3.7, Resource Parameters; 3.10.4, ERCOT Responsibilities; 3.10.7.5, Telemetry Criteria; 3.10.8, Dynamic Ratings; 3.11.4, Transmission Planning Responsibilities; 3.19, Constraint Competitiveness Tests; 6.5.7.3, Security Constrained Economic Dispatch; 8.2, ERCOT Performance Monitoring and Compliance; 17.1, Overview; 17.2, Objectives and Scope of Market Monitoring and Data Collection; 17.3, Market Data Collection and Use; 17.3.1, Information System Data Collection and Retention; 17.3.3, Accuracy of Data Collection; 17.3.4, PUCT Staff and WEMM Review of Data Collection; 17.5, Reports to PUCT Staff, WEMM, and the FERC; and 17.6, Changes to Facilitate Market Operation Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/08 Nodal Protocols Library)

NPRR088 Revision to 16.11.5, Monitoring of a Counter-Party’s Creditworthiness and Credit Exposure by ERCOT The revision ensures that ERCOT will receive and accept as sufficient from the Counter-Party, financial statements of the Counter-Party or a guarantor if a guarantee is being provided for the purpose of determining the Counter-Party’s creditworthiness. 10/31/2007 Reliant Energy No 16.11.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/08 Nodal Protocols Library)

NPRR089 Changing Posting Requirement of Certain Documents From MIS Secure to Public Area This NPRR changes the requirement to post "Other Binding Documents" from the Market Information System (MIS) Secure Area to the MIS Public Area. 11/07/2007 ERCOT Staff No 1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR090 Corrections of FIP-FOP in Energy Offers This NPRR corrects the submission and use of Fuel Index Price/ Fuel Oil Price (FIP/FOP) percentages in Energy Offers and separates FIP/FOP percentages for Startup Offer and Minimum-Energy Offer. 12/05/2007 TPTF No 4.4.9.2.1, 4.4.9.2.3, 4.4.9.3.1, 4.4.9.3.3, 4.4.9.4.1, 4.4.9.4.2, Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/08 Nodal Protocols Library)

NPRR091 Scarcity Pricing and Mitigated Offer Cap During the Period Commencing on the Nodal Market Implementation Date and Continuing for a Total of 45 Days This Nodal Protocol Revision Request (NPRR) adds: (1) A provision to Section 3.19 that all transmission constraints are treated as non-competitive constraints during an initial 45 Operating Day period, beginning with the Texas Nodal Market Implementation Date (TNMID). (2) New Section 4.4.11.2, which requires that the System-Wide Offer Cap (SWCAP) be set to the higher of $180 per MWh or 18 mmBtu per MWh times the Fuel Index Price (FIP) during an initial 45 Operating Day period, beginning with the TNMID, provided that a Market Participant who burns fuel oil rather than natural gas may dispute the use of $180 per MWh or 18 mmBtu heat rate per MWh times FIP if the Generation Resource’s Settlement Point Price does not cover the cost incurred by the Market Participant to provide energy or Ancillary Services. This new section also establishes an Energy Offer Curve floor adjusted to -$50 per MWh. 12/05/2007 TPTF No 3.19, 4.4.11.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR092 Remove Voltage Schedules Requirement This Nodal Protocol Revision Request (NPRR) will remove the requirement for ERCOT to post hourly voltage schedules on the MIS Secure Area. 12/14/2007 John Adams, ERCOT No 6.5.7.1.13, Data Inputs and Outputs for the Real-Time Sequence and SCED Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/08 Nodal Protocols Library)

NPRR094 Correct Reference to CRR Credit Limit ERCOT will be determining credit limits for Counter-Parties, not Congestion Revenue Right (CRR) Account Holders. CRR Account Holders will have the flexibility to manage their credit limits (as a subset of their Counter-Party) for each CRR auction activity. 01/02/2008 Trip Doggett on behalf of Texas Nodal Transition Plan Task Force (TPTF) No 7.5.3, ERCOT Responsibilities and 7.5.5, Auction Clearing Methodology Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR095 Clarify Recipients of MCFRIs To clarify that MCFRIs are to be allocated to Congestion Revenue Right (CRR) Account Holders either affiliated with or designated by Wind Generation Resources (WGR) located in the McCamey area. 01/02/2008 Trip Doggett on behalf of Texas Nodal Transition Plan Task Force (TPTF) No 7.7.1, 7.7.2 and 7.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR096 Revisions to the RMR Startup Energy Payment This Nodal Protocol Revision Request (NPRR) incorporates language from the COMS Eligibility Process for Settlements Requirements (B2) (v3.0) (Eligibility Process) document approved by the Transition Plan Task Force (TPTF) on October 8, 2007. The proposed language is consistent with the language in the Eligibility Process to determine if a Reliability Must Run (RMR) Unit is to be compensated for its startup costs as well as Protocol Sections 5.6.2, RUC Startup Cost Eligibility, and 5.6.3, Forced Outage of a RUC-Committed Resource. 01/07/2008 ERCOT Staff No 6.6.6.2, RMR Payment for Energy Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR097 Changes to Section 8 to Incorporate Role of TRE, the IMM, and the Concept of Market Compliance This Nodal Protocol Revision Request (NPRR) incorporates relevant concepts from the TAC Approved EMS and MMS Business Requirements and Conceptual Design Documentation to bring Section 8 AS Qualification Testing and Performance Monitoring in to conformance with the current nodal market AS deployment design. Additionally changes are made to make Section 8 properly reflect the role of the IMM and to delineate the concept of market compliance vs. reliability compliance for the purposes of the TRE. This NPRR also incorporates Transition Plan Task Force (TPTF) determinations regarding ERCOT Staff clarification questions as discussed by TPTF as discussed at the 12/3/06 and 12/18/06 TPTF meetings. 01/08/2008 TPTF No 8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/08 Nodal Protocols Library)

NPRR098 Protocol Sections 4 and 6 Formula Clarifications and Related Revisions This Nodal Protocol Revision Request (NPRR) revises parts of Sections 4.6.4.2 and Sections 6.6.7, 6.6.9.1 and 6.7.3 to add clarity to the formulas for charges related to certain Ancillary Services and variable definitions or data elements. 01/09/2008 TPTF No 4.6.4.2, Charges for Ancillary Services Procurement in the DAM; 6.6.7, Voltage Support Settlement; 6.6.9.1, Payment for Emergency Power increase directed by ERCOT; 6.7.3, Real Time Settlements calculations for Ancillary Services Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/08 Nodal Protocols Library)

NPRR099 RMR Incentive Factor Payment This Nodal Protocol Revision Request (NPRR) removes language that would allow the Incentive Factor payment in Reliability Must Run (RMR) Agreements to be reduced if, in ERCOT’s determination, the reduction in capacity materially affects reliability. 01/09/2008 Trip Doggett on behalf of Texas Nodal Transition Plan Task Force (TPTF) No 3.14.1.13, Incentive Factor. Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/08 Nodal Protocols Library)

NPRR100 PCRR Release Mechanism This Nodal Protocol Revision Request (NPRR) removes the Pre-Assigned Congestion Revenue Right (PCRR) release concept, replacing it with a process in which a fraction of the previously allocated or awarded CRRs are factored into the determination of available network capacity for a CRR auction. 01/14/2008 Trip Doggett on behalf of Texas Nodal Transition Plan Task Force (TPTF) No 7.4.1, 7.4.2, 7.5.1 and 7.5.6.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/08 Nodal Protocols Library)

NPRR101 Modify Time Requirements for Entry of Equipment in the Outage Scheduler This Nodal Protocol Revision Request (NPRR) increases the time window from one minute to 30 minutes for requiring entries of equipment outages in the Outage Scheduler. 02/06/2008 Trip Doggett on behalf of the Transition Plan Task Force (TPTF) No 3.10.7.5.1, Continuous Telemetry of the Status of Breakers and Switches Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/08 Nodal Protocols Library)

NPRR102 Implementation of PUC Subst. R. 25.505(f), Publication of Resource and Load Information This NPRR incorporates the disclosure requirements pursuant to P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability of Texas Power Region, paragraph (f), adopted under P.U.C. Project No. 33490, Rulemaking Proceeding to Address Pricing Safeguards in the Markets Operated by the Electric Reliability Council of Texas. 02/12/2008 TPTF No 1.3.1.2, Items Not Considered Protected Information; and 3.2.5, Publication of Resource and Load Information (NEW) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/08 Nodal Protocols Library)

NPRR103 Settlement of Power Imported via DC Ties and Block Load Transfer Under a Declared Emergency Condition These revisions add Settlement formulas to pay a Qualified Scheduling Entity (QSE) for emergency energy imported over the DC Ties and for energy supplied to BLT Load moved from the ERCOT control area to a Non-ERCOT control area during a declared Emergency Condition. These payments may only be made for actions taken by the (QSE) in response to an ERCOT Dispatch Instruction. 02/13/2008 TPTF No 6.6.3.4, Real-Time Energy for DC Tie Import 6.6.3.5, Real-Time Payment for a Block Load Transfer Point Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/08 Nodal Protocols Library)

NPRR105 Section 23, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 23 with the current Nodal Protocols. 02/26/2008 ERCOT No Zonal Protocol Section 23 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/08 Nodal Protocols Library)

NPRR106 Section 24, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 24 with the current Nodal Protocols. 02/26/2008 ERCOT No Zonal Protocol Section 24 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/08 Nodal Protocols Library)

NPRR107 Nodal Emergency Interruptible Load Service (EILS) This NPRR modifies the ERCOT Nodal Protocols to transition the EILS to the Nodal market. EILS is deployed during an Emergency Electric Curtailment Plan (EECP), after all available Generation and Loads acting as Resources (LaaRs) have been deployed. This NPRR makes no material changes to EILS as it currently is defined in the Zonal Protocols. In various cases, certain language has been modified slightly to enhance clarity. 02/29/2008 ERCOT Staff No Section 2, Definitions and Acronyms; Section 3.14, Contracts for Reliability Resources; Section 3.14.3, Emergency Interruptible Load Service (EILS) (New); Section 6.5.8.1, Deployment of Emergency Interruptible Load Service (EILS) (New); Section 6.5.9, Emergency Operations; Section 6.5.9.4, Emergency Electric Curtailment Plan Section; 6.5.9.7, Emergency Interruptible Load Service (EILS) (New); Section 6.6.11, Emergency Interruptible Load Service (EILS) Settlement (New); Section 8.1.3, Emergency Interruptible Load Service (EILS) Performance Criteria and Testing Requirements (New); Section 9.14.5, Resettlement of Emergency Interruptible Load Service (New); (subsequent subsections in Section 9.14 renumbered); Section 16.13, Registration of Emergency Interruptible Load Service (EILS) Resources (New); Section 22 -- Attachment 22K, Standard Form Emergency Interruptible Load Service Agreement (Reformatted) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR108 Fuel Oil Price (FOP) Clarification This Nodal Protocol Revision Request (NPRR) clarifies that the five-cent adder is charged by the gallon and removes language referencing to the Fuel Oil Price (FOP) for days when the Platts Oilgram Price Report is not published. 03/03/2008 ERCOT Staff No 2.1, Definitions Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/08 Nodal Protocols Library)

NPRR109 Section 18, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 18 with the current Nodal Protocols. 03/03/2008 Giriraj Sharma, ERCOT No 18 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/08 Nodal Protocols Library)

NPRR110 Section 20, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 20 with the current Nodal Protocols. 03/03/2008 ERCOT Staff No Section 20, Alternative Dispute Resolution Process Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/08 Nodal Protocols Library)

NPRR111 Timelines for Response by ERCOT to TSP Requests This Nodal Protocol Revision Request (NPRR) proposes two revisions in the table in Section 3.1.5.3(1): The first revision proposes changing "three" to "four" to make the timeline internally consistent. The current wording could require approval of an Outage six hours prior to its submission. The second revision proposes increasing the "approval window" for the 45-day timeline from five days to 15 days (as it is in Zonal Protocols). 03/04/2008 Woody Rickerson, ERCOT No 3.1.5.3, Timelines for Response by ERCOT for TSP Requests Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR112 Emergency Base Point Price Revision This Nodal Protocol Revision Request (NPRR) clarifies the calculation of the Emergency Base Point Price per QSE per Resource by interval (EBPPR) variable. 03/03/2008 ERCOT Staff No 6.6.9.1, Payment for Emergency Power Increase Directed by ERCOT Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR113 Load Resource Type Indicator for Ancillary Service (AS) Trades and Self-Arranged AS This Nodal Protocol Revision Request (NPRR) adds an indicator to Self-Arranged Ancillary Services (AS) and AS Trades to reflect if Responsive Reserve Services (RRS) are being provided from a Generation Resource, Controllable Load Resource, or non-controllable Load Resource. 03/11/2008 ERCOT Staff No 4.4.7.1, Self-Arranged Ancillary Service Quantities; and 4.4.7.3.1, Ancillary Service Trade Criteria Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/08 Nodal Protocols Library)

NPRR114 Section 11, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 11 with the current Nodal Protocols. 03/14/2008 Giriraj Sharma, ERCOT No 11, Data Acquisition and Aggregation Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/08 Nodal Protocols Library)

NPRR117 Resource Registration Clarification This NPRR clarifies the obligations of a Resource Entity to register Resource data with ERCOT and the obligations of a Qualified Scheduling Entity (QSE) to submit Resource Parameters for operational purposes to ERCOT. This NPRR also deletes a QSE’s obligation to submit Private Use Network design and engineering data and places the obligation on a Generation Entity with a Generation Resource located within a Private Use Network. 03/26/2008 ERCOT No 2.1, 3.7, 3.7.1.1, 3.7.1.2, 3.7.1.3 (new), 3.7.2, 6.5.5.2, 16.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR118 Section 14, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 14 with the current Nodal Protocols. 03/27/2008 Giriraj Sharma, ERCOT No 14 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR119 Resource Limit Calculator This Nodal Protocol Revision Request (NPRR) changes the Low Dispatch Limit (LDL) calculation to ensure that the LDL and High Dispatch Limit (HDL) limit sent to the Security Constrained Economic Dispatch (SCED) do not exceed the High Sustained Limit (HSL) under any circumstance. 03/27/2008 ERCOT Staff No 6.5.7.2, Resource Limit Calculator Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR120 Corrections and Clarifications for Real Time Settlements This Nodal Protocol Revision Request (NPRR) makes corrections and clarifications to existing formulas for Real-Time Settlement. 03/27/2008 ERCOT Staff No 6.6.3.1, Real Time Energy Imbalance Payment or Charge at a Resource Node; 6.6.5.1.1, Base Point Deviation Charge for Over Generation; 6.6.6.1, RMR Standby Payment; 6.6.8.1, Black Start Capacity Payment; 6.6.9.1, Payment for Emergency Power Increase Directed by ERCOT; and 6.6.10, Real Time Revenue Neutrality Allocation. Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR122 Simplify Ancillary Services Settlement Formulas This Nodal Protocol Revision Request (NPRR) replaces the Ancillary Service trades and self-supply in the Settlement formulas and replaces them with the self-arranged quantities. This NPRR also, proposes editorial changes to variables and subscripts and adds clarifying language. 04/07/2008 ERCOT Staff No 4.6.4.1Payments for Ancillary Services Procured in DAM; 4.6.4.2 Charges for Ancillary Services Procurement in the DAM; 6.7.3 Adjustments to Cost Allocations for Ancillary Services Procurement Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR123 Inadvertent Energy Account Revision This Protocol Revision Request corrects the definition for an Inadvertent Energy Account. 04/09/2008 ERCOT Staff No 6.5.4, Inadvertent Energy Account Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR124 Resource Node Updated Definitions This Nodal Protocol Revision Request (NPRR) clarifies the definition for Resource Node and specifies the different Resource Node types that meet the Nodal Protocol requirements. 04/10/2008 ERCOT Staff No Section 2.1, Definitions Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/08 Nodal Protocols Library)

NPRR126 Section 19, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 19 with the current Nodal Protocols. 04/14/2008 ERCOT No 19 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/08 Nodal Protocols Library)

NPRR127 Section 22 Attachments A, I, J & M, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) Synchronizes Attachments A, I, J and M of zonal Protocol Section 22 with the current Nodal Protocols. 04/23/2008 ERCOT No 22 Attachments A, I, J & M Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/08 Nodal Protocols Library)

NPRR128 Combined Cycle Power Blocks with Multiple Voltage Interconnections This Nodal Protocol Revision Request (NPRR) eliminates the unnecessary restriction that requires all generators in a combined cycle power block to be connected to the bulk electric system at the same voltage level. This change must be made for similarly situated combined cycle units to effectively participate in the very important nodal 168-hour test. Re-done resource asset registration forms (RARFs) must also be constructed and validated prior to implementing these changes. 04/25/2008 Calpine No 6.5.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR129 Section 15, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 15 with the current Nodal Protocols and moves Section specific definitions and acronyms to Nodal Protocol Section 2, Definitions and Acronyms. 05/01/2008 ERCOT No 2.1, 2.2 and 15 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/08 Nodal Protocols Library)

NPRR130 CRR Settlements Revenue Equalization This Nodal Protocol Revision Request adds an accounting provision to assure revenue neutrality in the Day-Ahead Market (DAM) financial activity while refunding the proper funds later through the CRR Balancing Account. 05/09/2008 TPTF No 7.9.3.3, 7.9.3.4, 7.9.3.5 and 9.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/08 Nodal Protocols Library)

NPRR131 Ancillary Service Trades with ERCOT Allow all QSEs, whether they represent Resources, Loads, or both, to procure AS in the Day DAM. 05/15/2008 NRG Texas No 2.1, Definitions; 4.3, QSE Activities and Responsibilities in the Day-Ahead; 4.4.7.1, Self-Arranged Ancillary Service Quantities; 4.4.7.3, Ancillary Service Trades; 4.4.7.4, Ancillary Service Supply Responsibility; 4.4.10, Credit Requirement for DAM Bids and Offers; 4.5.1, DAM Clearing Process; and 4.6.4.2, Charges for Ancillary Services Procurement in the DAM Approved
NPRR132 Outage Clarification This Nodal Protocol Revision Request (NPRR) changes the use of the defined term "Outage" to generic "outage" to clarify that the Protocol language regarding outages in the CIM model includes known normal operating status outages, not Outages as defined in Section 2.1, Definitions. .This NPRR also proposes non-substantive edits. 05/16/2008 ERCOT Staff No 4.2.3, Posting Forecasted ERCOT System Conditions Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/08 Nodal Protocols Library)

NPRR133 Addtion of PSSE Format This Nodal Protocol Revision Request (NPRR) adds the requirement to post Annual Planning Models and Congestion Revenue Rights (CRR) Network Models in the Power System Simulator for Engineering (PSS/E)format.This NPRR also proposes non-substantive edits. 05/16/2008 ERCOT Staff No 3.10.2, Annual Planning Model, and 3.10.3, CRR Network Model Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/08 Nodal Protocols Library)

NPRR134 Section 7 Cleanup This Nodal Protocol Revision Request (NPRR) adds clarifications to the variables that are used in settling McCamey flowgates. This NPRR proposes corrections to flowgate formulae and clarifying variables and subscripts. The NPRR also proposes revisions that streamline the OBLRACT and OPTRACT calculations, but maintain the intent of the original calculations. With this revision, less data is required from Market Management System (MMS) and a complicated calculation is avoided. This revision came about during interface discussions with MMS. 06/05/2008 Joel Mickey on behalf of the Texas Nodal Transition Plan Task Force (TPTF) No 7.7.3, 7.9.1.4, 7.9.2.4, 7.9.1.5, 7.9.1.6, 7.9.2.3 and 7.9.2.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR135 Deletion of UFE Analysis Zone Language This Nodal Protocol Revision Request (NPRR) deletes an outdated section pertaining to Unaccounted for Energy (UFE) analysis. 06/20/2008 ERCOT No 13.4.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/09 Nodal Protocols Library)

NPRR136 Interim Solution for 15-Minute Settlement of Advanced Meters Implementing this Nodal Protocol Revision Request (NPRR) will support the interim settlement of all provisioned Advanced Meters using actual fifteen minute data, the same way Interval Data Recorder (IDR) meters are settled today, until the long-term solution developed by Project 34610, Implementation Project Relating to Advanced Metering, or future rulemakings is implemented.ERCOT and the Public Utility Commission of Texas (PUCT) have developed a Request for Information to investigate the long-term solution to advanced meter settlement and data transport. The PUCT unanimously approved the "Scope of Work" of the long-term study on May 22, 2008. See P.U.C. SUBST. R. 25.130(h), Advanced Metering. 06/20/2008 AEP Texas No 9.5.8, 10.3.3.1, 10.3.3.3, 10.12.3, 11.2.2, 18.2, 18.6.7, 18.7.2, 19.7 (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR138 Credit Monitoring and Management Reports With implementation of this Nodal Protocol Revision Request (NPRR), ERCOT will post on the Market Information System (MIS) Certified Area, each active Counter-Party’s Credit Monitoring and Management related reports twice a day (by noon and end of day) on Business Days. 07/11/2008 Credit Working Group No 16.11.4.7 (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR139 ACL, EAL, FCE Calculation Updates Congestion Revenue Right’s (CRR’s) future exposure is represented by Future Credit Exposure (FCE) calculations. Including the CRR Invoices in Daily DA Liability Extrapolated (DALE) and Average Daily Transaction Extrapolated (ADTE) calculations result in calculating the future exposure more than once for CRR activity. Hence the CRR activity needs to be excluded from DALE and ADTE calculations. Eliminate the "two day" requirement for prepays. Invoices will be removed from the exposure calculation the day after they are paid. If the Day Ahead Market (DAM) is executed but specific DAM Settlement Point Prices are not available, ERCOT may use the appropriate auction clearing prices instead. 90% was mentioned twice, once in Available Credit Limit (ACL) definition and once in CRR auction credit limit. The intention is to apply 90% to ACL only once. Hence the 90% is removed from the ACL definition. 07/11/2008 Credit Working Group No 16.11.4.3; 16.11.4.5; 16.11.4.6 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR140 Revision to CRR Obligation Margin Adder Revises the margin adder for Point-to-Point (PTP) Obligations to a value "X" to be determined by the subcommittee process. 07/14/2008 J. Aron No 16.11.4.5, Determination of the Counter-Party Future Credit Exposure Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR141 TSP Energy Storage for Reliability (formerly "TSP and/or DSP Energy Storage for Reliability") This Nodal Protocol Revision Request (NPRR) inserts new paragraph (f)(iii) in Section 10.3.3.1 that clarifies that metering of energy flows from Transmission Service Provider (TSP) owned battery storage technology is not required for Settlement. This new paragraph will be limited to the Presidio substation Facilities. 07/21/2008 American Electric Power Company No 10.3.3.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/09 Nodal Protocols Library)

NPRR142 EECP Media Appeal Change This Nodal Protocol Revision Request removes required energy conservation media appeal from Emergency Electric Curtailment Plan (EECP) Step Two and allows ERCOT management to issue a media appeal for energy conservation at management’s discretion, without requiring ERCOT CEO authorization. 07/22/2008 John Jonte on behalf of the Operations Working Group (OWG) No 6.5.9.4, 6.5.9.4.1, 6.5.9.4.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR143 Section 9.9.1, Invoice Recipient Payment to ERCOT for the CRR Auction, Clean-up This Nodal Protocol Revision Request (NPRR) corrects conflicting language in Section 9.9.1 and Section 16.11.6.1.5, Declaration of Forfeit of CRRs, by removing language regarding forfeiture of Congestion Revenue Rights (CRRs) from Section 9.9.1. 07/25/2008 ERCOT No 9.9.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR144 Five RUC Deployments Needed Before Requiring Verifiable Costs This Nodal Protocol Revision Request (NPRR) will increase the time Qualified Scheduling Entities (QSEs) and Resources have to prepare verifiable cost submissions for units that are unlikely to be struck in the Reliability Unit Commitment (RUC) process. 07/25/2008 Heddie Lookadoo on behalf of the VCWG No Section 5.6.1, Verifiable Costs Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/08 Nodal Protocols Library)

NPRR145 PPAs as Resource-Specific Verifiable Costs Documentation This Nodal Protocol Revision Request (NPRR) allows Power Purchase and Tolling Agreements (PPAs) to be used as Resource-specific verifiable costs documentation. 07/25/2008 Ino González on behalf of the VCWG No Section 5.6.1, Verifiable Costs Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR146 ICCP Telemetry Information Submittals This Nodal Protocol Revision Request (NPRR) requires that changes to an existing Network Operations Model Change Request (NOMCR) that modify only Inter-Control Center Communications Protocol (ICCP) data object names be submitted prior to the completion of the testing for the Network Operations Model. 07/30/2008 American Electric Power No 3.10.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

06/30/2011

Section 3.10.1(3) and (6)

NPRR148 Treatment of Financial Information as Confidential This Nodal Protocol Revision (NPRR) clarifies that non-public financial information provided to ERCOT is to be treated as Protected Information. 08/15/2008 Clayton Greer on behalf of J Aron No 1.3.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR149 Change the name of Emergency Electric Curtailment Plan (EECP) to Energy Emergency Alert (EEA) This Protocol Revision Request (PRR) changes the name of the Emergency Electric Curtailment Plan (EECP) to Energy Emergency Alert (EEA). 08/22/2008 ERCOT No 2.1, 2.2, 3.14.3, 3.17.2, 5.7.2, 6.5.7.6.2.2, 6.5.9.3.4, 6.5.9.4, 6.5.9.4.1, 6.5.9.4.2, 6.5.9.4.3, 8.1.3.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (05/01/09 Nodal Protocols Library)

NPRR150 Responsive Reserve Service Offer Floor This Nodal Protocol Revision Request (NPRR) establishes an offer floor of $0 for Responsive Reserve (RRS) service in the Nodal Market. 08/28/2008 DSWG on behalf of WMS No 4.4.7.2.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (12/01/08 Nodal Protocols Library)

NPRR152 References to Section 22 Attachments This Nodal Protocol Revision Request (NPRR) corrects references in the Nodal Protocols to certain attachments to Section 22, Agreements, and re-letters Attachment K, Standard Form Emergency Interruptible Load Service (EILS) Agreement, as Attachment G. 09/10/2008 ERCOT No 3.14.1.1, 3.14.1.2, 3.14.1.8, 3.14.3, 6.6.6.2, 6.6.8.1, 16.5.1.2, 16.5.1.3, 16.7, 16.10, 16.13, 22K Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR153 Generation Resource Fixed Quantity Block This Nodal Protocol Revision Request (NPRR) revises existing Ancillary Service (AS) Offer criteria to provide for offers of Non-Spin in fixed quantity and time blocks from off-line Generation Resources similar to that for Load Resources. 09/12/2008 Transition Plan Task Force (TPTF) No 4.4.7.2.1 Approved
NPRR154 Corrections of Entities Able to Bid for Point-To-Point Obligations in the Day-Ahead Market This Nodal Protocol Revision Request (NPRR) provides clarifying language to indicate that only Qualified Scheduling Entities (QSE) may bid for Point-To-Point (PTP) Obligations in the Day-Ahead Market (DAM). 09/15/2008 Rachelle Zani on behalf of TPTF No Section 7.1, Function of Congestion Revenue Rights Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR155 Clarification of Authorized Representative This Nodal Protocol Revision Request (NPRR) clarifies the need to designate Authorized Representatives for registration for all registered Entities. 09/18/2008 ERCOT No 10.3.2.1, 16.3, 16.4, 16.5, 16.11.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR156 Transparency for PSS and Full Interconnection Studies Updates to Section 1 & 12 to provide transparency to status of Power System Stabilizer Equipment and interconnection requests. 09/18/2008 Marguerite Wagner/PSEG Texas No 1.3.1.1, Items Considered Protected Information 1.3.1.2, Items Not Considered Protected Information Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library)

NPRR157 Extending Black Start Service Bid Timeline This Nodal Protocol Revision Request (NPRR) changes the Black Start Service bids from a one year period to a two year period. 09/23/2008 John Dumas on behalf of the Reliability and Operations Subcommittee (ROS) No 3.14.2, 22 Attachment D Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/09 Nodal Protocols Library)

NPRR158 EILS Self-Provision Formula Correction and Clarifications This Nodal Protocol Revision Request (NPRR) proposes to correct terms contained in the Settlement equations related to EILS Self-Provision to make the formulas consistent with the verbal description of EILS Self-Provision Settlement and the author’s stated original intent. Specifically, the formula correction applies to the uplifted costs of EILS as defined in paragraph (3) of Section 6.6.11.2, as follows: · Clarifies that uplifted EILS costs are based on final adjusted EILS obligations after accounting for any self-provided EILS. This is accomplished by establishing and defining a new formula term, EILOF. · Adjusts other related formula terms accordingly. · Adds a missing subscript term definition that appears in numerous places elsewhere in the Protocols. · Adds clarity to certain other equation term definitions. This NPRR also makes clarifications in language contained in paragraph (8)(d) of Section 3.14.3 related to Qualified Scheduling Entities’ (QSEs’) EILS Self-Provision options in cases where less than 1,000 MW of EILS has been offered, and adds copies of definitions that are applicable to both equations in this Section. This NPRR also revises language to: · Clarify that the first Settlement of the Emergency Interruptible Load Service (EILS) Contract Period shall use a QSE Load Ratio Share (LRS) that is based upon the final Load for each Operating Day in the EILS Contract Period; · Introduce a resettlement of EILS Contract Period Settlement utilizing a QSE LRS which is based upon the True-Up Load for each Operating Day in the EILS Contract Period; · Remove conflicting language about EILS disputes; · Clarify the timing by which EILS Settlement disputes must be submitted; and · Move all language related to the timing of the EILS Settlement process to Section 9.14.5. 09/23/2008 ERCOT No 3.14.3, 6.6.11.1, 6.6.11.2, 8.1.3.1, 9.14.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/09 Nodal Protocols Library)

NPRR159 Resource Category Startup Offer Generic Cap for Wind Resources This Nodal Protocol Revision Request (NPRR) changes the Resource Category Startup Offer Generic Cap for a Wind Resource from a value of $7,200 to zero. 10/03/2008 Heddie Lookadoo on behalf of the VCWG No 4.4.9.2.3 Startup Offer and Minimum-Energy Offer Generic Caps Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR160 Elimination of the Non-ERCOT LSE Fee Eliminate language within protocol Section 9.16.2 which describes the Texas Non-ERCOT LSE fee. 10/08/2008 Barry Smith w/ AEP No 19.6.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR161 Clarification of Establishing Decision-Making Authority of Managed Capacity This Nodal Protocol Revision Request (NPRR) clarifies Nodal Protocol language on the obligation to provide ERCOT designated decision-making authority over Resources when considering pricing safeguards and when testing for competitiveness in resolving system constraints. The NPRR aligns Nodal Protocol language with the Public Utility Commission of Texas (PUCT) Order adopting P.U.C. Subst. R. 25.502(e), Pricing Safeguards in Markets Operated by the Electric Reliability Council of Texas. 10/16/2008 ERCOT No 3.19.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/09 Nodal Protocols Library)

NPRR162 Change the Sign Convention of Net Real Power Consumption, LPC and MPC of Load Resources (formerly titled "Change the Sign Convention for Load Resources") This Nodal Protocol Revision Request (NPRR) revises language for the sign convention for Load Resources. This NPRR changes the Nodal Protocols so that low reasonability limit, Low Sustained Limit (LSL), telemetered values, High Sustained Limit (HSL) and high reasonability limit are all positive numbers for Load Resources. 11/06/2008 Kenneth Ragsdale No 2.1, Definitions 3.7.1.2, Load Resource Parameters 3.18, Resource Limits in Providing Ancillary Service 6.5.5.2, Operational Data Requirements 6.5.7.2, Resource Limit Calculator Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/09 Nodal Protocols Library)

NPRR163 Removal of Late Fee Language This NPRR removes the concept of late fees calculated on all delinquent amounts. Section 9, Settlements and Billing clearly states that l ate fees are only calculated on delinquent Day-Ahead Market (DAM), Real-Time Market (RTM) and RTM uplift amounts. The late payment fee language in Section 16 conflicts with late fee procedures detailed in Section 9.4.5, Late Fees and Late Fee Invoices for the DAM and 9.7.5 Late Fees and Late Fee Invoices for the RTM. 11/11/2008 Keely Hilton No 16.11.6.3, Late Payment Fee Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/09 Nodal Protocols Library)

NPRR164 Resubmitting Ancillary Service Offers in SASM This Nodal Protocol Revision Request (NPRR) revises existing rules for resubmitting Ancillary Service (AS) offers in the Adjustment Period to provide for resubmitting those AS offers not awarded in the previous markets at the higher of the Day-Ahead Market (DAM) Market Clearing Price for Capacity (MCPC) for the corresponding AS or the Resource’s offer price for the corresponding AS in the DAM. 11/12/2008 Transition Plan Task Force (TPTF) No 6.4.8.2.1 Approved
NPRR165 Synchronizing Section 1 with PRR697 This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 697, Posting Requirement Changes, which incorporated disclosure requirement changes resulting from P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability of Texas Power Region, adopted under P.U.C. Project No. 33490, Rulemaking Proceeding to Address Pricing Safeguards in the Markets Operated by the Electric Reliability Council of Texas. NPRR057, Posting Requirements Pursuant P.U.C. Subst. R. 25.505, and NPRR102, Implementation of P.U.C. Subst. R. 25.505, Publication of Resource and Load Information, synchronized the Nodal Protocols with most of PRR697; this NPRR synchronizes the remainder. 11/18/2008 ERCOT No 1.3.1.1, 1.3.1.2, 1.3.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR166 Timing for Required Black Start Unit Load Carrying Test This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with changes being proposed to the zonal Protocols through Protocol Revision Request (PRR) 785. This NPRR changes the required Black Start Unit Load Carrying Test from once every six years to once every five years. 11/20/2008 ERCOT No 8.1.1.2.1.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/09 Nodal Protocols Library)

NPRR167 Options for Filing Verifiable Costs -- QSEs or Resources This Nodal Protocol Revision Request (NPRR) allows either Qualified Scheduling Entities (QSEs) or Resource Entities to file verifiable costs. 11/24/2008 Verifiable Cost Working Group (VCWG) No 5.6.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/09 Nodal Protocols Library)

NPRR168 Change the Definition of "Start-up" and Include the Fuel from Breaker Close to LSL in Startup Costs (formerly titled "Verifiable Costs General Corrections") This Nodal Protocol Revision Request (NPRR) allows Qualified Scheduling Entities (QSEs) to file Resource fuel consumption from breaker close to Low Sustained Limit (LSL) and breaker open to shutdown. 11/24/2008 Verifiable Cost Working Group (VCWG) No 4.4.9.2, 4.4.9.2.3, 5.6.1, 5.7.1.1, 5.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR169 Clarify the Calculation and Posting of LMPs for the Load Zone and LMPs for each Hub This Nodal Protocol Revision Request (NPRR) clarifies language that specifies the calculation and posting of LMPs for the Load Zone and "LMPs for each Hub". 12/16/2008 Joel Mickey on behalf of the Transition Plan Task Force (TPTF) No 2.1, 6.3.2, 6.6.1.2, 6.6.1.4 (new), 6.6.1.5 (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library)

NPRR170 Synchronization of PRR806, Re-Registration of Market Participant due to Mass Transition of ESI IDs This Nodal Protocol Revision Request (NPRR) requires re-registration as a Market Participant (MP) if they transfer Electric Service Identifiers (ESI IDs) from one Competitive Retailer (CR) to another using the Mass Transition process. This NPRR creates Section 16.1.1, Re-Registration as a Market Participant, to identify the circumstances in which an MP would have to re-register as an MP. 04/01/2009 Jennifer Frederick on behalf of the Texas Standard Electronic Transaction (Texas SET) Working Group No 15.1.3, 16.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/09 Nodal Protocols Library)

NPRR171 Synchronization of PRR805, Adding POLR Customer Class and AMS Meter Flag to the Database Query Function on the MIS This Nodal Protocol Revision Request (NPRR) will add Provider of Last Resort (POLR) Customer class and the Advanced Metering System (AMS) meter flag to the database query function on the Market Information System (MIS). 04/03/2009 Jennifer Frederick on behalf of the Texas Standard Electronic Transaction (Texas SET) Working Group No 15.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR172 Synchronization of Section 15 with PRR782, Clean-up and Corrections to Terminology and Transaction Timings in Protocol Section 15, Customer Registration This Nodal Protocol Revision Request (NPRR) incorporates relevant language from Protocol Revision Request (PRR) 782, Clean-up and Corrections to Terminology and Transaction Timings in Protocol Section 15, Customer Registration, approved by the ERCOT Board on February 17, 2009. 04/03/2009 Jennifer Frederick on behalf of Texas SET Working Group No 15, 15.1.1.2, 15.1.1.3.1, 15.1.1.9, 15.1.3, 15.1.4.2, 15.1.4.4, 15.1.4.5, 15.1.5.2, 15.1.5.3, 15.1.6.4, 15.1.6.5, 15.1.7, 15.1.8, 15.4.1.4, 15.4.1.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/09 Nodal Protocols Library)

NPRR173 Reduce the Minimum Quantity for Ancillary Service Offers This Nodal Protocol Revision Request (NPRR) reduces the minimum requirement for Ancillary Service Offers. 04/08/2009 Mary Anne Brelinsky, on behalf of the Wholesale Market Subcommittee (WMS) and the Demand Side Working Group (DSWG) No 4.4.7.2.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/09 Nodal Protocols Library)

NPRR174 FIP Modifications in Verifiable Startup and Minimum Energy Cost and Recovery of Exceptional Fuel Costs During RUC Intervals This Nodal Protocol Revision Request (NPRR) modifies the verifiable Startup Cost and verifiable minimum energy cost calculation to include a $.50 adder for the Fuel Index Price (FIP). This NPRR also allows through the dispute process for the recovery of the difference between the Reliability Unit Commitment (RUC) Guarantee based on the actual price paid for delivered natural gas and a fuel price of FIP*1.X. In lieu of system changes, ERCOT may implement this NPRR by making appropriate adjustments to the verifiable cost procedures to accommodate the $.50 adder. These procedures will be described in the Verifiable Cost Manual. 04/14/2009 WMS No 5.6.1.1, 5.6.1.2, 9.14.7 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/09 Nodal Protocols Library)

NPRR175 Hub Bus List Clarification This Nodal Protocol Revision Request (NPRR) updates the Hub lists to reflect the current network model by removing Hub Bus SHRTP which was a construct of planning and does not exist; and also by renaming Hub Bus FPPYD, which was actually two substations that were amalgamated for planning reasons, to FPPYD1 and FPPYD2. SDSES no longer has a 345 kV infrastructure. ALNSW1/2, CNTRY1/3, FRNYPP1/2, JEWETN/S MDANP1/2, RCHBR1/2, TRSES1/2, VENSWN/S denote planning constructs which should be generalized to the substation’s 345kV system. 04/30/2009 ERCOT No 3.5.2.1, 3.5.2.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR176 Resource Status Input to RUC and Ancillary Service Awards from RUC This Nodal Protocol Revision Request (NPRR) provides clarity in the Nodal Protocol language. Resources committed by Day-Ahead Market (DAM) are not considered as On-Line by Reliability Unit Commitment (RUC) unless a Qualified Scheduling Entity (QSE) has changed the Resource Status to On-Line in the Current Operating Plan (COP) for that hour. During Ancillary Service insufficiency, an ERCOT Operator may commit Resources in RUC to provide Ancillary Service. If the commitment is for Ancillary Service then the QSE should be able to show the Resource in COP with "ONRUC" status and non-zero Ancillary Service Resource Responsibility corresponding to the Ancillary Service awards from RUC. 05/07/2009 ERCOT No 5.5.2, 4.4.7.4, 5.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR177 Synchronization of Nodal Protocols with PRR808, Clean-up and Alignment of RECs Trading Program Language with PUCT Rules This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 808, Clean-up and Alignment of RECs Trading Program Language with PUCT Rules. 05/15/2009 ERCOT No 2.1, 2.2, 14.1, 14.2, 14.3.2, 14.5.2, 14.5.3 (new), 14.6, 14.8,14.9, 14.9.3, 14.9.3.1, 14.9.4, 14.9.5, 14.10.1, 14.12, 14.13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR178 Regulation Reduction (GS-FR3) and Reg-Up/Reg-Down Allocation to QSEs The purpose of this Nodal Protocol Revision Request (NPRR) is to bring the Nodal Protocols in line with the nodal program implementation: * Changes to the regulation reduction calculation to account for movements in generation due to units getting updated Base Points from Load Frequency Control (LFC). * The other change is regarding the Regulation Up (Reg-Up)/Regulation Down (Reg-Down) allocation to Qualified Scheduling Entities (QSEs) to take out the constraint for each four-second interval, since the full amount of Reg-Up/Reg-Down responsibility is realizable in five-minutes and compliance is also on a five-minute basis. 05/26/2009 ERCOT No 6.5.7.6.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR180 Reconciliation of CRR Related Protocol Language This Nodal Protocol Revision Request (NPRR) makes the following Nodal Protocol changes: o Removes the Section 3.10.3 requirement to hold Congestion Revenue Right (CRR) models static for two months prior to the auction, thus enabling CRR group to perform updates to CRR model until publication of said model. o Revises Section 7.1(2)(d) to state that the facilitation of bilateral trades will occur on the Market Information System (MIS) Certified Area, not the Secured Area. o Removes the wording in Section 7.1(2)(d) to clarify that bilateral trades of Point- to-Point (PTP) Options with Refund and PTP Obligations with Refund will not occur in Day-Ahead Market (DAM).Amends Section 7.3(1)(c) to clarify that all available Flowgate Right (FGR) capacity (that is consistent with the simultaneous feasibility test described in Section 7.5.5.4, Simultaneous Feasibility Study) is available in CRR Auctions, not just that offered by CRR Account Holders. 06/10/2009 Steve Reedy No 3.10.3, CRR Network Model 7.1, Function of Congestion Revenue Rights 7.3, Types of Congestion Revenue Rights to Be Auctioned Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR181 FIP Definition Revision This Nodal Protocol Revision Request (NPRR) revises the definition of Fuel Index Price (FIP) to correctly account for the timing difference between ERCOT’s application of the FIP in its systems (midnight to midnight) and the timing of natural gas prices reflected by the index (i.e., 10 AM to 9 AM). The fuel price index published in Gas Daily, in the Daily Price Survey, under the heading "East-Houston-Katy, Houston Ship Channel" for any particular day reflects natural gas prices available to users from hour ending 10 AM of the particular day to hour ending 9 AM of the next day (i.e., the normal "gas day"). This NPRR also adds a new definition for the term "Gas Day." This NPRR also proposes non-substantive administrative changes, such as correcting acronym and defined term usage and section references. These are shown below with the author "ERCOT Market Rules." 06/10/2009 Luminant Energy Company LLC No 2.1 Approved
NPRR182 Non-Protocol Postings on the Market Information System This Nodal Protocol Revision Request (NPRR) allows ERCOT to put information, not specifically required in the Protocols but required by market guides, on the Market Information System (MIS) under one of the three classifications, i.e., Public, Secure or Certified. This NPRR also adds the State Estimator Standards to the list of Other Binding Documents named in the Protocols. 06/11/2009 ERCOT No 1.1, 12.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR183 Synchronization of PRR790, Load Profile ID Annual Validation Change Request This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 790, Load Profile ID Annual Validation Change Request, which allows for changes in the Annual Validation process timeline due to extreme events. 06/22/2009 Ernie Podraza on behalf of the Profiling Working Group (PWG) No 18.4.2, Load Profile Id Assignment Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR184 Section 2, Addition of Definitions and Acronyms from Zonal Protocols and Clarifications This Nodal Protocol Revision Request (NPRR) incorporates certain definitions and acronyms from the zonal Protocols for terms that are used in the Nodal Protocols but are not defined in Section 2, Definitions and Acronyms. Some of these definitions have been slightly modified for use in the Nodal Protocols. This NPRR also makes clarifying revisions to Section 2 that can be categorized as follows: (1) Reorders certain definitions and acronyms so that Section 2 is in proper alphabetical order; (2) Within defined terms, spells out full terms rather than using associated acronyms. This assures defined terms that incorporate a shorter defined term will appear consecutively in Section 2.1. For example, Competitive Retailer (CR) of Record incorporates the defined term "Competitive Retailer," but currently the definitions for "Competitive Retailer" and "CR of Record" appear on different pages. Accordingly, "CR of Record" will be changed to "Competitive Retailer (CR) of Record"; (3) Moves certain definitions to appear as secondary definitions that follow the primary defined term (e.g., definition for "Black Start Resource" moved to follow definition of "Resource"), and changes certain secondary definitions to primary definitions (e.g., "EILS Contract Period" no longer a secondary definition of "Emergency Interruptible Load Service (EILS)"). Only those terms that are types or classes of a primary defined term are listed as secondary definitions (e.g., Forced Outage, which is a type of Outage); (4) Adds acronyms and abbreviations used in the Nodal Protocols to the list in Section 2.2 if not already contained therein; (5) Deletes terms that do not need definitions from Section 2.1 (e.g., proper nouns); (6) Deletes definitions for terms that are not used in the Nodal Protocols; (7) Adds internal hyperlinks for navigating within Section 2; and(8) Makes non-substantive administrative changes, such as correcting acronym usage, capitalization of defined terms, formatting, grammar, and citations. 06/23/2009 ERCOT No 2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR185 Cancellations of RUC-Committed Resources This Nodal Protocol Revision Request (NPRR) will provide units that are cancelled after being Reliability Unit Commitment (RUC)-committed in the Day-Ahead RUC (DRUC) or Hourly RUC (HRUC) a process to recover costs that they incur between the time of RUC commitment and the cancellation of the RUC. These costs would include actual fuel and Operations and Management (O&M) expenses that were incurred by the cancellation. 07/06/2009 Heddie Lookadoo for the Verifiable Cost Working Group (VCWG) on behalf of the Wholesale Market Subcommittee (WMS) No 2.1, 5.6.4 (new), 5.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR186 Naming Convention Clarification This Nodal Protocol Revision Request (NPRR) clarifies the Nodal Protocols regarding the naming convention approved by TAC by removing the requirement for use of a prefix within the name of Transmission Elements. The naming convention does not and should not require inclusion of a prefix to identify Transmission Service Providers (TSPs). 07/09/2009 Network Data Support Working Group (NDSWG) No 3.10.7.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR187 Definition for Transmission and/or Distribution Service Provider This Nodal Protocol Revision Request (NPRR) modifies the definition for Transmission and/ or Distribution Service Provider (TDSP) to include Entities that were selected to own and operate Transmission Facilities listed in the PUCT Order in Docket 35665, Commission Staff’s Petition for the Selection of Entities Responsible for Transmission Improvements Necessary to Deliver Renewable Energy from Competitive Renewable Energy Zones. 07/10/2009 Chad Seely No 2.1, Definitions Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/09 Nodal Protocols Library)

NPRR188 MVA for SCED Input This Nodal Protocol Revision Request (NPRR) removes the Transmission Service Provider (TSP) requirement to provide MVA to be used in Real-Time sequence and Security-Constrained Economic Dispatch (SCED). This NPRR also corrects the use of Common Information Model (CIM) and corrects the Dynamic Rating requirement. 07/10/2009 Ebby John on behalf of the Network Data Support Working Group (NDSWG) No 6.5.7.1.13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR189 Ancillary Service Deployment Clarification This Nodal Protocol Revision Request (NPRR) clarifies the difference between Ancillary Service capacity deployment and energy deployment and how it affects Security-Constrained Economic Dispatch (SCED). This NPRR also proposes non-substantive administrative changes, such as correcting acronym and defined term usage and section references. 07/24/2009 ERCOT No 6.4.8.1, 6.4.8.2, 6.5.5.2, 6.5.7.2, 6.5.7.6.2.1, 6.5.7.6.2.2, 6.5.7.6.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/09 Nodal Protocols Library)

NPRR191 Synchronization of PRR819, Changes to Support Revisions to the PUCT POLR and Expedited Switch Rules This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 819, Changes to Support Revisions to the PUCT POLR and Expedited Switch Rules, which provides that ERCOT shall identify, for 60 days, Electric Service Identifiers (ESI IDs) acquired in a Mass Transition to a Provider of Last Resort (POLR) so that Customers that switch from the POLR are not charged for an out-of-cycle meter read and it will also implement changes necessary to expedite the customer switching process. 07/30/2009 Jennifer Frederick on behalf of the Texas Standard Electronic Transaction (Texas SET) Working Group No 2.1, 15, 15.1.1, 15.1.1.1, 15.1.1.2, 15.1.1.3, 15.1.1.3.1, 15.1.1.3.2, 15.1.1.4, 15.1.1.5, 15.1.1.6, 15.1.1.7, 15.1.1.8, 15.1.1.9, 15.1.3, 15.1.6.3, 15.1.6.6, 15.1.8 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/09 Nodal Protocols Library)

NPRR192 QSE Energy and Ancillary Service Compliance Criteria This Nodal Protocol Revision Request (NPRR) establishes performance criteria for following energy deployments and/or providing Ancillary Services which must be met by Generation and Load Resources. For performance in providing Ancillary Services, the NPRR includes criteria for both Ancillary Service Capacity Monitoring and for periods during which ERCOT has deployed Ancillary Services. The calculation of energy deployment performance is also updated. 08/11/2009 PUCT/TRE/ERCOT No 2.1, 6.5.7.6.2.3, 8.1.1.2.1.1, 8.1.1.3, 8.1.1.4, 8.1.1.4.1, 8.1.1.4.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/09 Nodal Protocols Library)

NPRR193 Application of Nodal Implementation Surcharge in Verifiable Costs This Nodal Protocol Revision Request (NPRR) allows Resources to include in their verifiable costs the Nodal Implementation Surcharge for periods while ramping up from breaker close to Low Sustained Limit (LSL). 08/17/2009 Ino Gonzalez for the Verifiable Cost Working Group (VCWG) on behalf of the Wholesale Market Subcommittee (WMS) No 5.6.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/09 Nodal Protocols Library)

NPRR194 Synchronization of Zonal Unannounced Generation Capacity Testing Process This Nodal Protocol Revision Request (NPRR) replaces the seasonal testing requirement with unannounced Generation Resource testing and adds a requirement for Qualified Scheduling Entities (QSEs) to seasonally update their Resources’ High Sustainable Limits (HSLs). The NPRR also leverages existing emergency operations Settlement functionality to provide a mechanism to compensate a Generation Resource for the additional energy above the pre-test Security-Constrained Economic Dispatch (SCED) Base Point during the unannounced Generation Resource test period. This NPRR synchronizes the Nodal Protocols with the process added to the zonal Protocols pursuant to Protocol Revision Request (PRR) 750, Unannounced Generation Capacity Testing. 08/18/2009 ERCOT No 6.6.9, 6.6.9.1, 6.6.9.2, 8.1.1.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/10 Nodal Protocols Library)

NPRR195 Removal of McCamey Congestion Management from Nodal Protocols This Nodal Protocol Revision Request (NPRR) removes the unique congestion management procedures for the McCamey Area from the Nodal Protocols, consistent with zonal Protocol revisions made pursuant to Protocol Revision Request (PRR) 810, Remove McCamey Congestion Management, which was approved by the ERCOT Board on August 18, 2009. This NPRR removes all mention of McCamey Flowgate Rights (MCFRIs) while leaving intact the description of Flowgate Rights (FGRs) and related Settlement equations. 08/18/2009 ERCOT No 2.2, 7.1, 7.3.1.2, 7.5.1, 7.5.3.1, 7.5.3.2, 7.7 (delete), 7.8, 7.9.1.4, 7.9.2.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/09 Nodal Protocols Library)

NPRR196 Synchronization of Nodal Protocols with PRR827, Find Transaction and Find ESI ID Functions on the MIS This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 827, Find Transaction and Find ESI ID functions on the MIS. 08/20/2009 ERCOT No 15.2, 15.2.1 (new), 15.2.2 (new), 15.2.3 (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (01/01/10 Nodal Protocols Library)

NPRR197 Section 21, Synchronization of Zonal Protocols This Nodal Protocol Revision Request (NPRR) synchronizes zonal Protocol Section 21 with the current Nodal Protocols and includes changes from PRR821, Update of Section 21, Process for Protocol Revision. 10/30/2009 ERCOT No 21 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/10 Nodal Protocols Library)

NPRR198 Load Used in RMR Studies This Nodal Protocol Revision Request (NPRR) would provide guidance to ERCOT to use the peak Load forecast posted pursuant to P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region, for the next 12 months for the Reliability Must-Run (RMR) study, except with respect to the Load in the RMR local area. This aligns the Load forecast period with the RMR contract period and ensures that the Load forecast used for the analysis is one with a reasonable probability of occurrence. This NPRR also proposes non-substantive administrative changes, shown with the author "ERCOT Market Rules." 11/10/2009 PSEG TX No 3.14.1.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library)

NPRR199 Shift Factors by Resource Node This Nodal Protocol Revision Requests (NPRR) adds the reporting requirement for ERCOT to provide Shift Factors by Resource Node. 11/20/2009 ERCOT No 4.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/10 Nodal Protocols Library)

NPRR200 MMS DC Tie Schedule Data Source This Nodal Protocol Revision Request (NPRR) changes the source of Direct Current Tie (DC Tie) Schedules for use by the Market Management System (MMS) to an associated Qualified Scheduling Entity (QSE) submitted Electronic Tag (e-Tag). This NPRR also revises the definition of DC Tie Schedule and adds a new acronym to Section 2. 11/30/2009 ERCOT No 2.1, 2.2, 4.4.4, 4.4.4.1, 4.4.4.2, 4.4.4.3, 9.17.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/10 Nodal Protocols Library)

NPRR201 Calculation of Transmission and Distribution Losses This Nodal Protocol Revision Request (NPRR) revises the Nodal Protocol language to align with the current practice for calculation of Transmission Losses and Distribution Losses on a seasonal versus monthly basis. 12/03/2009 ERCOT No 13.2.1, 13.2.2, 13.2.3, 13.2.4, 13.4.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/10 Nodal Protocols Library)

NPRR202 Clarification of Network Operations Model and State Estimator Postings This Nodal Protocol Revision Request (NPRR) addresses the confidentiality of data in the Network Operations Model and Hourly State Estimator report. The language introduces a newly defined term for redacted-version of the Network Operations Model for non-Transmission Service Providers (TSPs) and also removes Private Use Network data from the Hourly State Estimator report. 12/10/2009 NATF No 2.1, 3.10, 3.10.1, 3.10.4, 4.2.3, 6.5.7.1.13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (02/01/10 Nodal Protocols Library)

NPRR203 Amend Telemetry Bus Accuracy Requirements This Nodal Protocol Revision Request (NPRR) proposes a new term, State Estimator Bus, and proposes language changes to Section 3.10.7.5.2. 12/22/2009 Ebby John on behalf of the Network Data Support Working Group (NDSWG) No 2.1, 3.10.7.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library)

NPRR204 Update Generic Startup Cost for Reciprocating Engines This Nodal Protocol Revision Request (NPRR) adds an Operations and Maintenance (O&M) cost for the "Reciprocating Engines" Resource category to the Resource Category Startup Offer Generic Cap determination. 12/22/2009 South Texas Electric Cooperative, Inc. No 4.4.9.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library)

NPRR205 Transmission and/or Distribution Service Provider (TDSP) Definition Revision This Nodal Protocol Revision Request (NPRR) revises the definition of Transmission and/or Service Provider (TDSP) to include Entities that have been selected to own and operate Transmission Facilities and have a code of conduct approved by the Public Utility Commission of Texas (PUCT). 01/15/2010 Mike Grable on behalf of ERCOT No 2.1, Definitions Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/10 Nodal Protocols Library)

NPRR206 Nodal Market Day-Ahead Market Credit Requirements This Nodal Protocol Revision Request (NPRR) revises the nodal collateral requirements by Qualified Scheduling Entities (QSEs) who participate in the Day-Ahead Market (DAM). The change will potentially reduce the collateral burden for QSE’s bids while sufficiently collateralizing ERCOT. The revisions are based on discussions held at the Market Credit Working Group (MCWG). The proposed NPRR language has been developed for implementation by the Texas Nodal Market Implementation Date (December 2010). Additional changes to further improve nodal collateralization may be proposed in the future, some of which may require nodal system changes. Revisions requiring significant nodal system changes following this NPRR are not expected to be implemented by the December 2010 Texas Nodal Market Implementation Date. 01/20/2010 Randa Stephenson on behalf of Luminant No 4.4.10 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (03/01/10 Nodal Protocols Library)

NPRR207 Unit Deselection (formerly "Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback") This Nodal Protocol Revision Request (NPRR) would provide that ERCOT may deselect units from Reliability Unit Commitment (RUC) processes. The NPRR also creates the term "RUC Notification" to refer to an ERCOT instruction preceding a Resource’s startup time. The NPRR enables the Qualified Scheduling Entity (QSE) to self-commit, a Resource after receiving a RUC Notification but before the Resource’s startup time. 01/22/2010 Seth Cochran and Tom Jackson, co-chairs, for the Quick Start Task Force (QSTF) on behalf of the Wholesale Market Subcommittee (WMS) No 2.1, 5.5.2, 5.7.2 Approved
12/01/2010

All sections except for Sections 2.1, 4.4.9.2.1, 4.4.9.3 and 5.5.2

NPRR208 Registration and Settlement of Distributed Generation (DG) Less Than One MW The Nodal Protocol Revision Request (NPRR) includes proposed language changes by the NOIE DRG Taskforce in regards to the registration requirements for Distributed Generation (DG) greater than 50 kW and less than or equal to one MW. In addition this NPRR synchronizes language approved through PRR756, Distributed Renewable Generation Modifications, with some recommended revisions consistent with the NOIE DRG Task force discussions. PRR756 was approved by ERCOT Board on 5/20/08 and was un-grey boxed upon system implementation on 11/21/09. 01/25/2010 Don Tucker on behalf of the NOIE DRG Taskforce No 2.1, Definitions 2.2, Acronyms 10.2.2, TSP and DSP Metered Entities 11.4.4.2, Load Reduction for Excess PhotoVoltaic Distributed Renewable Generation 11.4.4.3, Load Reduction for Excess Non-PhotoVoltaic Distributed Generation 16.5, Registration of Generation Resources, Loads Acting as a Resource and Emergency Interruptible Load Service Resources 18.2, Methodology 18.2.2, Load Profiles for Non-Interval Metered Loads 18.2.3, Load Profiles for Non-Metered Loads Approved
12/01/2010

All sections except for Sections 11.4.4.2 and 11.4.4.3

NPRR209 Data Posting Changes to Comply with P.U.C. Subst. R. 25.505 This Nodal Protocol Revision Request (NPRR) removes a requirement to post certain State Estimator information that can be used to determine Resource status, which is confidential information as per Public Utility Commission of Texas (PUCT) rules. 02/05/2010 Adrian Pieniazek, NRG Texas and Randy Jones, Calpine No 1.3.1.1, 6.5.7.1.13 Approved
12/01/2010
NPRR210 Wind Forecasting Change to P50, Synchronization with PRR841 This Nodal Protocol Revision Request (NPRR) changes the wind forecasting methodology to use a 50% probability of exceedance calculation instead of an 80% for Reliability Unit Commitment (RUC) considerations. This NPRR would align the Nodal Protocols with changes made to the zonal Protocols pursuant to Protocol Revision Request (PRR) 841, Revise Total ERCOT Wind Power Forecast (TEWPF), which was approved by the ERCOT Board on 3/23/10. 02/09/2010 Morgan Stanley No 2.1, 3.9.1, 4.2.2, 5.7.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR211 Clarify Capacity Obligations of Energy Trades (formerly "Modify RUC Capacity Short Charge to Use Final Energy Trades") This Nodal Protocol Revision Request (NPRR) specifies that Energy Trades representing firm physical products that are entered and confirmed through ERCOT must be submitted by 1430 in the Day-Ahead for the Operating Day, and that Energy Trades representing firm physical products that are executed during the adjustment period and confirmed through ERCOT must be submitted prior to the next Hourly Reliability Unit Commitment (HRUC) execution. Additional non-substantive administrative revisions, such as correcting acronym usage and formatting, are shown with the author "ERCOT Market Rules." 02/11/2010 J. Aron & Company No 2.1, 4.4.2, 5.4, 5.7.4.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/10 Nodal Protocols Library)

NPRR212 Disputing Fuel Oil Price (FOP) Costs This Nodal Protocol Revision Request (NPRR) allows for disputes of FOP. 02/11/2010 Kenan Ögelman No 9.14.7, Disputes for RUC Make Whole Payment for Exceptional Fuel Costs. Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR213 Deadlines for Initiating Alternative Dispute Resolution This Nodal Protocol Revision Request (NPRR) amends Section 20.3 to establish deadlines for the Alternative Dispute Resolution (ADR) procedures. 02/25/2010 Horizon Wind Energy LLC No 20.3, Informal Dispute Resolution 20.4, Mediation Procedures 20.5.2, Selection of Arbitrators Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR214 Wind-powered Generation Resource (WGR) High Sustained Limit (HSL) Update Process This Nodal Protocol Revision Request (NPRR) establishes the specific timing of the WGR’s HSL update to ERCOT and specifies that, when not curtailed, the WGR’s HSL should equal the WGR’s current meter reading. 03/12/2010 Wind Coalition No 6.5.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/10 Nodal Protocols Library)

NPRR217 Resolution of Alignment Item A58 - Use of Different Computational Modules This Nodal Protocol Revision Request (NPRR) clarifies the Security Sequence since ERCOT does not use the same computational modules to perform both the Real-Time sequence and Day-Ahead and hour-ahead security analysis. 03/22/2010 ERCOT No 5.5.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR218 Resolution of Alignment Item A71 - Add Protocol Description of the Power Balance Penalty Factor used in the SCED This Nodal Protocol Revision Request (NPRR) will add a description of the power balance penalty factor to the Nodal Protocol sections that describe the implemented constraint set utilized in the Security-Constrained Economic Dispatch (SCED) optimization. 03/22/2010 ERCOT No 6.5.7.1.11, 6.5.7.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR219 Resolution of Alignment Items A33, A92, A106, and A150 - TSPs Must Submit Outages for Resource Owned Equipment and Clarification of Changes in Status of Transmission Element Postings This Nodal Protocol Revision Request (NPRR) will require the Resource Entity to designate a Transmission Service Provider (TSP) as the responsible Entity that will manage Outage Scheduler entries for the Resource Entity for Transmission Elements owned by the Resource other than the outage of the Generation or Load Resource itself. This NPRR will also require all changes or expected changes in the status of Transmission Facilities to be in the Outage Scheduler to ensure that all Outages in the Outage Scheduler are provided to the Market Information System (MIS). 03/23/2010 ERCOT No 2.1, 3.1.5.1, 3.3.2.1, 6.3.2 Approved
09/27/2016

Sections 3.1.5.1 and 3.3.2.1

12/01/2010

Sections 2.1, 3.1.2, 3.1.3.2, 3.1.4.3, and 6.3.2

NPRR220 Nodal Requirement of Declaring an EEA for Reserves More than 500 MW This Nodal Protocol Request (NPRR) removes the requirement to declare an Energy Emergency Alert (EEA) prior to deploying more than 500 MW of Responsive Reserve (RRS). 03/23/2010 ERCOT No 6.5.7.6.2.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR221 Day-Ahead Market and Real-Time Market Default Allocation Changes This Nodal Protocol Revision Request (NPRR) changes the way default amounts (amounts owed to ERCOT by defaulting Counter-Party 180 days after the default occurs) in the Day-Ahead Market (DAM) and Real-Time Market (RTM) are allocated. This NPRR assigns a share of the default to each Counter-Party based on the greatest of the Counter-Party’s MWh activity in either the CRR market or DAM or RTM at the Counter-Party level for the calendar month prior to the month in which the default occurs. The Counter-Party share of the default is invoiced to the Counter-Party’s Qualified Scheduling Entities (QSEs) or Congestion Revenue Right (CRR) Account Holders, pro rata based on each of the Counter-Party QSE’s or Counter-Party CRR Account Holder’s share of the Counter-Party’s maximum MWh activity. The level of MWh activity in the CRR market and DAM is measured as the greater of the MWh purchases or sales in that market and the level of MWh activity in the RTM is measured as the greater of the Counter-Party’s MWh Load or generation, excluding generation from Reliability Must-Run (RMR) Resources and other Resources during Reliability Unit Commitment (RUC)-Committed Intervals. Language that currently exists in Sections 9.4.3 and 9.7.3 was consolidated and used to create new Section 9.19. This NPRR also accelerates the DAM Invoice payment due date by one day. This NPRR also includes revisions to synchronize the Nodal Protocols with the zonal Protocols as revised by Protocol Revision Request (PRR) 817, Cease Late Payment Charges for Defaulted Entities, to clarify how much security may be held back to be used to pay subsequent minor Invoices as they come due. 03/29/2010 MCWG No 9.1.2, 9.4.1, 9.4.2, 9.4.3, 9.4.5, 9.7.2, 9.7.3, 9.7.3.1, 9.7.3.2, 9.7.3.2.1, 9.7.3.2.2, 9.7.5, 9.19, 9.19.1, 9.19.2, 9.19.2.1, 9.19.2.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR222 Half-Hour Start Unit RUC Clawback (Companion to NPRR207) This Nodal Protocol Revision Request (NPRR) removes Reliability Unit Commitment (RUC) Clawback on all Half-Hour Start Units (a) that participate in the Day-Ahead Market (DAM) and (b) during Energy Emergency Alert (EEA) events. This NPRR also changes the RUC Clawback on all Half-Hour Start Units that did not participate in the DAM to 50%. 04/08/2010 WMS No 2.1, 5.7.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR223 Resolution of Alignment Item A73 Removal of IMM and PUC Staff Nightly Report This Nodal Protocol Revision Request (NPRR) removes a reporting requirement. There are no specific reporting requirements from the Independent Market Monitor (IMM) and Public Utility Commission of Texas (PUCT) for ERCOT to provide a nightly report. Based on IMM requirements, a nightly report is not required. 04/08/2010 ERCOT No 17.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR224 Remove Dynamic Rating Requirements for Annual Planning Models This Nodal Protocol Revision Request (NPRR) removes the use of Dynamic Rating for Annual Planning Models. 04/08/2010 Steady State Working Group No 3.10.8, 3.10.8.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR225 Standard Cost Option in Verifiable Costs This Nodal Protocol Revision Request (NPRR) provides the option for the election of standard Operations and Maintenance (O&M) costs as a component of Startup Costs and minimum energy costs in place of filing verifiable costs through January 1, 2012. Additional non-substantive administrative revisions, such as correcting acronym and defined term usage, are shown with the author "ERCOT Market Rules." 04/11/2010 WMS No 5.6.1, 5.6.1.1, 5.6.1.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (07/01/10 Nodal Protocols Library)

NPRR226 Procedure for Setting DAM Credit Requirement Parameters (formerly Procedure for Setting DAM Auction Credit Requirement Parameters) This Nodal Protocol Revision Request (NPRR) provides language revisions to align the Nodal Protocols with the procedure developed to implement the changes approved by the ERCOT Board in NPRR 206, Nodal Market Day-Ahead Market Credit Requirements, on 2/16/10. 04/15/2010 ERCOT No 4.4.10 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR227 Termination of Access Privileges to Restricted Computer Systems and Control Systems This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with the language in the zonal Protocols pursuant to Protocol Revision Request (PRR) 822, Termination of Access Privileges to Restricted Computer Systems, Control Systems and Facilities formerly Removing of Access to Restricted Computer Systems, Control Systems, and Facilities. PRR822 was approved by the ERCOT Board on 10/21/09. This NPRR also includes a definition used in the zonal Protocols but not defined in the Nodal Protocol Section 2, Definitions and Acronyms 04/22/2010 Ann Delenela No 2.1, Definitions 16.14, Termination of Access Privileges to Restricted Computer Systems, Control Systems and Facilities (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR228 Resolution of Alignment Items A2, A80, A83 and A93 - As-Built Treatment and Settlement of Combined Cycle Generation Resources in ERCOT Market Systems This Nodal Protocol Revision Request (NPRR) revises the Nodal Protocol language to include a description of the treatment and Settlement of Combined Cycle Generation Resources in the ERCOT Day-Ahead, reliability and Real-Time systems. The design change for the Combined Cycle upgrades are described in the documents located at the following URLs: "Combined Cycle Plants", http://nodal.ercot.com/docs/pd/ida/sig/SIG0003/sig0003_combined_cycle_plants_v5_0.doc; "Transmission Constraint Modeling for RT CCP Dispatch", http://nodal.ercot.com/docs/pd/ida/sig/SIG0022/sig0022_trans_constraint_mod_RT_ccp_disp_v4.doc; "Combined-Cycle Unit Modeling in the Nodal Design", http://nodal.ercot.com/docs/pd/ida/wp/ccum/ida003_combined_cycle_unit_modeling_in_the_nodal_design_v3.doc. The Combined Cycle Train design change described in the above documentation has extensive impacts on ERCOT systems and processes in the areas of Registration, Management Activities (COP and Outage Scheduler), the Day-Ahead Market (DAM), the Supplemental Ancillary Services Market (SASM) and the Reliability Unit Commitment (RUC) processes; and Settlements and Billing. This NPRR adds clarifying language to explain the "as built" system implementation of the conceptual elements of the Combined Cycle Train design change consistent with the existing Protocol treatment of all other Generation Resource types. 04/22/2010 ERCOT No 2.1, 2.2, 3.8, 3.8.1 (new), 3.8.2 (new), 3.9.1, 3.9.2, 4.5.1, 4.6.1.4 (new), 4.6.2.3.1, 4.6.4.1.1, 4.6.4.1.2, 4.6.4.1.3, 4.6.4.1.4, 5.7.1, 5.7.1.1, 5.7.1.2, 5.7.1.3, 5.7.1.4, 5.7.2, 5.7.3, 5.7.4, 5.7.4.1, 5.7.4.1.1, 5.7.5, 5.7.6, 6.5.5.2, 6.6.1.1, 6.6.3.1, 6.6.5, 6.6.5.1, 6.6.5.1.1, 6.6.5.1.2, 6.6.5.2, 6.6.5.3, 6.6.5.4, 6.6.6.1, 6.6.6.2, 6.6.6.3, 6.6.6.4, 6.6.7.1, 6.6.8.1, 6.6.9.1, 6.7.1, 7.9.3.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR229 Additions to Section 2, Definitions and Acronyms This Nodal Protocol Revision Request (NPRR) incorporates certain definitions and acronyms from the zonal Protocols for terms that are used in the Nodal Protocols but are not defined in Section 2, Definitions and Acronyms. 04/28/2010 Sonja B. Mingo No Section 2.1, Definitions Section 2.2, Acronyms and Abbreviations Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR230 Resolution of Alignment Items A40, A108, A127 and A138 and Clarification/Updates to Load and Demand Forecast, Statement of Opportunities, and Long Term Wind Power Forecast This Nodal Protocol Revision Request (NPRR) resolves Alignment Items A40, A108, A127, and A138 and provides clarification of the three-year Load and Demand forecast requirements as well as consistency for the medium-term System Adequacy Report. The requirement to develop profile functionality for a Long-Term Wind Power Forecast has been removed. 05/06/2010 ERCOT No 2.2, 3.2.1, 3.2.2, 3.2.4, 3.12, 3.12.2, 3.13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR231 Treatment of RMR Units in the Day-Ahead Market (formerly "Remove RMR Units from the Day-Ahead Market") This Nodal Protocol Revision Request (NPRR) removes ERCOT’s ability to submit Three-Part Supply Offer curves for any Generation Resource providing Reliability Must-Run (RMR) Service from participation in the Day-Ahead Market (DAM) and the Day-Ahead Reliability Unit Commitment (DRUC) process. However, ERCOT will still have the ability to use an RMR Resource to resolve local congestion issues through Verbal Dispatch Instruction (VDI). This NPRR also proposes non-substantive administrative changes, such as correcting acronym and defined term usage. These are shown below with the author "ERCOT Market Rules." 05/06/2010 Luminant No 4.1, 4.2.1.1, 4.4.8, 4.6.2.1, 4.6.2.3.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR232 Clarification of Block Load Transfer Registration and Deployment This Nodal Protocol Revision Request (NPRR) adds language to clarify the purpose of registering Block Load Transfers (BLTs) and to specify the instances of Load transfer between Control Areas for which registration is required or when optional. The proposed revision clarifies the role of Market Participants regarding registering a BLT and related roles. 05/09/2010 ERCOT No 2.1, 6.5.9.5, 6.5.9.5.1, 6.5.9.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR233 Clarifying Method of Enforcing CRR Auction Limitation on Market Submissions This Nodal Protocol Revision Request (NPRR) clarifies the procedures and system configurations that will be utilized to ensure market transactions for Congestion Revenue Right (CRR) Auctions do not exceed the system capabilities. 05/12/2010 ERCOT No 7.5.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR235 Resolution of Alignment Items A36 and A131 and Clarification of Miscellaneous Requirements This Nodal Protocol Revision Request (NPRR) resolves Alignment Items A36 and A131 by clarifying Market Information System (MIS) posting requirements and validation of Qualified Scheduling Entity (QSE) telemetry for Ancillary Services Resource Responsibility and clarifies Reliability Unit Commitment (RUC) initialization to data bases. This NPRR also proposes non-substantive administrative changes, such as correcting acronym and defined term usage. These are shown with the author "ERCOT Market Rules." 05/12/2010 ERCOT No 3.13, 3.18, 5.5.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR236 Resolution of Alignment Item A83 partially, A86, A87 partially, A88 partially, and A142 - Clarify Default Actions for Missing Data and Range of Valid Data Entries for Energy Offers This Nodal Protocol Revision Request (NPRR) clarifies system actions if the Qualified Scheduling Entity (QSE) cancels a Resource Parameter submission, if a Current Operating Plan (COP) is not submitted for any hour, and/or if a conflict in Resource Status is encountered. The NPRR also clarifies that in each hour only one Combined Cycle Generation Resource in a Combined Cycle Train may be assigned one of the On-Line Resource Status codes. 05/12/2010 ERCOT No 2.2, 3.7.1.1, 3.7.1.3, 3.8, 3.9.1, 4.4.9.3, 6.4.3, 6.4.4 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR237 Resolution of Alignment Items A22, A143, A148, A153, A160 and A169 -- Clarification of NERC Reliability Standards and MIS Posting Requirements This Nodal Protocol Revision Request (NPRR) resolves Alignment Items A22, A143, A148, A153, A160 and A169 by clarifying the role of North American Electric Reliability Corporation (NERC) Reliability Standards in relation to Protocols and several Market Information System (MIS) posting requirements. 05/12/2010 ERCOT No 6.4.5, 6.5.2, 6.5.7.1.13, 6.5.7.5, 6.5.7.6.1, 8.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR238 Resolution of Alignment Item A47, A59, A104, A105, A114, A115, A130, A188, and A189 - Provides Clarification and Updates to Network Operations Model Processes for Resource Entities This Nodal Protocol Revision Request (NPRR) resolves Alignment Items A47, A59, A104, A105, A114, A115, A130, A188, and A189 by clarifying Network Model updates processes including clarification of the role the resource registration process in the model updates as well as the data submittal time requirements for Resource Entities. 05/12/2010 ERCOT No 3.3.2.1, 3.10, 3.10.1, 3.10.4, 3.10.7.1.1, 3.10.7.1.2, 3.10.7.2, 3.10.7.3, 3.10.8.2, 16.5.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR239 Ramp Rate Limitation of 10% per minute of On-Line Installed Capability for Wind-powered Generation Resources This Nodal Protocol Revision Request (NPRR) proposes a requirement that certain Wind-powered Generation Resources (WGRs) limit the unit ramp rate to 10% per minute of their nameplate rating as registered with ERCOT. The proposed language is based on the concept set forth in zonal Protocol Section 6.5.13, WGR Ramp Rate Limitations. 05/12/2010 ERCOT No 6.5.7.10 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (08/01/10 Nodal Protocols Library)

NPRR240 Proxy Energy Offer Curve This Nodal Protocol Revision Request (NPRR) states that the Entity with decision making authority over how a Resource or Split Generation Resource is offered or scheduled shall be responsible for all offers associated with each Resource, including offers represented by a proxy Energy Offer Curve. Additional non-substantive administrative revisions, such as correcting acronym usage, are shown with the author "ERCOT Market Rules." 05/25/2010 Potomac Economics No 6.5.7.3 Approved
12/01/2010

All sections except for Section 6.5.7.3(5)

02/04/2014

Section 6.5.7.3(5)

NPRR241 Aggregate Incremental Liability (AIL) Calculation and Credit Reports Publish Corrections This Nodal Protocol Revision Request (NPRR): 1. Updates AIL calculation to reflect Max (Average Daily Transaction Extrapolated (ADTE) during the previous 60-day period) instead of ADTE to match Estimated Aggregate Liability (EAL) calculation. 2. Removes Flowgate Rights-related Credit Monitoring and Management Reports. 3. Corrects Credit Monitoring and Management Reports format from Extensible Markup Language (XML) to Microsoft Excel (XLS) format. 4. Updates the posting requirements of Future Credit Exposure (FCE) Details Reports. 05/26/2010 Vanessa Spells, Credit Manager No 16.11.4.4, Determination of Counter-Party Aggregate Incremental Liability 16.11.4.7, Credit Monitoring and Management Reports Approved
12/01/2010

All sections except for Section 16.11.4.7(3)

NPRR242 Synchronization of Nodal Protocols with PRR792 This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 792, Revised Renewable Portfolio Standards Allocation Process, Pursuant to P.U.C. Subst. R. 25.173, approved by the ERCOT Board on January 20, 2009. 06/01/2010 ERCOT No 1.3.1.1, 14.2, 14.5.2, 14.5.3 (new), 14.9.3.1, 14.9.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR243 Load Resource Disqualification, Unannounced Testing, and Compliance This Nodal Protocol Revision Request (NPRR) incorporates relevant language from Protocol Revision Request (PRR) 714, Qualification and Periodic Testing of Loads acting as Resources (LaaRs), and synchronizes the Nodal Protocols with the current zonal requirements for the periodic testing and suspension of a Load Resource for non-performance. 06/02/2010 WMS No 8.1.1.1, 8.1.1.4.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR244 Clarification of Other Binding Documents This Nodal Protocol Revision Request (NPRR) clarifies the concept of "Other Binding Documents" and the revision process to better align with item (j) of the Public Utility Regulatory Act, TEX. UTIL. CODE ANN. § 39.151 (Vernon 1998 & Supp. 2003) (PURA), Essential Organizations, and P.U.C.T. Subst. R. 25.503, Oversight of Wholesale Market Participants, with respect to governing documents that are public and in effect in the ERCOT Region. 06/02/2010 Dave Seibert No 1.1 Summary of the ERCOT Protocols Document Approved
12/01/2010

All sections except for Section 12.2

NPRR245 Protocol Synchronization and As-Built Clarification for RUC Shortfall Calculation This Nodal Protocol Revision Request (NPRR) proposes revisions to paragraphs (9) and (10) of Section 5.7.4.1.1 to conform these paragraphs with paragraph (1), and to clarify how to perform Settlements pursuant to paragraph (1). 06/06/2010 ERCOT No 5.7.4.1.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (09/01/10 Nodal Protocols Library)

NPRR246 Requirement for Resource Entities to Update Resource Parameters This Nodal Protocol Revision Request (NPRR) requires Resource Entities to update their Resource Parameters after Net Dependable Capability tests, reactive capability tests, ERCOT requests, and known data changes to any Resource Parameters. 06/07/2010 Jay Teixeira No 3.7, Resource Parameters Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR247 Retail Market Testing Updates Due to the Merger of the TX SET and TTPT Working Groups This Nodal Protocol Revision Request (NPRR) creates Section 19.8, Retail Market Testing, incorporating the retail market testing process into Section 19, Texas Standard Electronic Transaction, thereby eliminating the need for Section 23, Texas Test Plan Team - Retail Market Testing. 06/20/2010 Jennifer Frederick on behalf of TX SET Working Group No 16.2.1, 16.3, 16.4, 19.8 (new), 23 (delete) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR248 Removal of Loads from NOIE Load Zone (formerly "Removal of Loads from Pre-1999 NOIE Load Zone") This Nodal Protocol Revision Request (NPRR) provides that a member assigned to a Non-Opt-In Entity (NOIE) Load Zone due to being in a group of NOIEs that are parties to the same pre-1999 power supply arrangement and having a 2003 peak Load in excess of 2,300 will be assigned to an appropriate Competitive Load Zone if it terminates its pre-1999 power supply arrangement. 06/23/2010 Kerrville Electric Cooperative and San Bernard Electric Cooperative No 3.4.2, 3.4.3, 7.4.2 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR249 Resolution of Alignment Item A155 and A159 -- Removal of Text Reason Requirement (formerly "Removal of Text Reason Requirement") This Nodal Protocol Revision Request (NPRR) removes the requirement for Qualified Scheduling Entities (QSEs) with Resources to submit a text reason to ERCOT when a Resource’s telemetered High Sustained Limit (HSL) or Low Sustained Limit (LSL) deviates from a normal high or low limit. 07/05/2010 John Adams No 3.2.5, Publication of Resource and Load Information 6.4.5, Resource Status 8.1.1.1, Ancillary Service Qualification and Testing Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR250 Suspension of Annual Profile ID Validation With Advanced Meter Deployment This Nodal Protocol Revision Request (NPRR) removes the market requirement for annual Load Profile ID validation in areas where Advanced Meter System (AMS) deployment is in progress. 07/06/2010 Ernie Podraza on behalf of the Profiling Working Group (PWG) No 18.4.2, Load Profile ID Assignment Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR251 Synchronization of PRR845, Definition for IDR Meters and Optional Removal of IDR Meters at a Premise Where an Advanced Meter Can be Provisioned This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 845, Definition for IDR Meters and Optional Removal of IDR Meters at a Premise Where an Advanced Meter Can be Provisioned, which clarifies the meaning of an Interval Data Recorder (IDR) Meter and provides for optional removal of IDR Meters under certain conditions for Premises where an Advanced Meter can be provisioned by the Transmission and/or Distribution Service Provider (TDSP). This NPRR also inserts grey boxed language for reporting requirements in Sections 18.6.1 and 18.6.2, to be implemented post Texas Nodal Market Implementation Date, that were removed from PRR845 due to the impact on Nodal systems and therefore deemed "Not Needed for Go-Live" by the CEO Revision Request Review process. 07/07/2010 Terry Bates on behalf of the Retail Metering Working Group No 2.1, 3.14.3, 8.1.3.1, 9.5.6, 9.5.8, 9.5.9, 9.18, 10.2.2, 10.3.2.3, 10.3.3.3, 10.9, 10.9.1, 10.9.2, 10.9.3, 11.4.3.1, 18.6, 18.6.1, 18.6.2, 18.6.3, 18.6.5, 18.6.6 Approved
12/09/2011

Sections 18.6.1 and 18.6.2

12/01/2010

All sections except for Sections 18.6.1 and 18.6.2

NPRR252 Synchronization of PRR758, Clarification of Language Related to Generation Netting for ERCOT Polled Settlement Meters This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 758, Clarification of Language Related to Generation Netting for ERCOT Polled Settlement Meters, approved by the ERCOT Board on 4/15/08. The term "Metering Facility" and its definition are being struck from Section 10.1 and added to Section 2, in accordance with Nodal Protocol convention. Non-substantive administrative changes, such as correcting acronym and defined term usage are also included. 07/14/2010 ERCOT No 2.1, 3.10.7.2, 10.1, 10.3.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR253 CRR Balancing Account Invoice and Settlement and Billing Dispute Process This Nodal Protocol Revision Request (NPRR) updates Section 9.12, and Section 9.14, with information pertaining to the ERCOT Invoice process and the statuses for processing of disputes. This NPRR also proposes non-substantive changes, such as capitalizing defined terms and use of acronyms. 07/14/2010 Art Deller No 9.12, CRR Balancing Account Invoices 9.14.1, Data Review, Validation, Confirmation, and Dispute of Settlement Statements 9.14.2, Notice of Dispute 9.14.3, Contents of Notice 9.14.4, ERCOT Processing of Disputes 9.14.4.1.3, Closed 9.14.4.1.4, Rejected (new) 9.14.4.1.4, Withdrawn 9.14.4.1.5, ADR 9.14.4.2.1, Denied 9.14.4.3, Closed (deleted) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR254 Updates to Protocol Sections 14 and 18 This Nodal Protocol Revision (NPRR) aligns language in Section 14 with COPMGRR016, Update to Section 12, Renewable Energy Credits due to PRR 808, Clean-up and Alignment of RECs Trading Program Language with PUCT Rules (approved by TAC on 4/8/10). This NPRR also updates Section 18, Load Profiling, with terms proposed in NPRR229, Additions to Section 2, Definitions and Acronyms. 07/14/2010 Sonja B. Mingo No 14.2, Duties of ERCOT 14.2.1, Site Visits 14.3.1, Creation of Renewable Energy Credit Accounts 14.3.2, Attributes of Renewable Energy Credits and Compliance Premiums 14.4, Registration to Become a Renewable Energy Credit Generator or Renewable Energy Credit Aggregator 14.5.2, Retail Entities 14.6, Awarding of Renewable Energy Credits 14.6.2, Awarding of Compliance Premiums 14.7, Transfer of Renewable Energy Credits or Compliance Premiums Between Parties 14.8, Renewable Energy Credit Offsets 14.9, Allocation of Statewide Renewable Portfolio Standard Requirement Among Retail Entities 14.9.1, Annual Capacity Targets 14.9.2, Capacity Conversion Factor 14.9.3, Statewide Renewable Portfolio Standard Requirement 14.9.3.1, Preliminary Renewable Portfolio Standard Requirement for Retail Entities 14.9.4, Application of Offsets - Adjusted Renewable Portfolio Standard Requirement 14.9.5, Final Renewable Portfolio Standard Requirement 14.10, Retiring of Renewable Energy Credits or Compliance Premiums 14.10.1, Mandatory Retirement 14.10.2, Voluntary Retirement 14.11, Penalties and Enforcement 14.12, Maintain Public Information 14.13, Submit Annual Report to Public Utility Commission of Texas 18.2, Methodology 18.2.7.1, Sample Maintenance 18.2.8, Adjustments and Changes to Load Profile Development 18.7.1.1, Overview 18.7.2, Other Load Profiling Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (10/01/10 Nodal Protocols Library)

NPRR255 Resolution of Alignment Item A81 - DRUC Timing and Execution when DAM is Delayed or Aborted This Nodal Protocol Revision Request (NPRR) adds new Section 5.2.2 to describe the process that ERCOT will follow in the event that the Day-Ahead Market (DAM) is delayed or aborted. 07/14/2010 ERCOT No 4.1.2, 5.2.1, 5.2.2 (new), 5.2.2.1 (new), 5.2.2.2 (new) Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR256 Synchronize Nodal Protocols with PRR787, Add Non-Compliance Language to QSE Performance Standards (formerly "Add Violation Language to QSE Performance Standards") This Nodal Protocol Revision Request (NPRR) aligns the Nodal Protocols with changes implemented from Protocol Revision Request (PRR) 787, Add Non-Compliance Language to QSE Performance Standards (formerly "Add Violation Language to QSE Performance Standards"), approved by the ERCOT Board on 8/18/09, and addresses the exclusion of Generation Resource Energy Deployment Performance (GREDP) during testing periods . This NPRR also addresses timing discrepancies in updating Resources’ Ancillary Service Schedule during qualification testing. As various questions currently being discussed through the Qualified Scheduling Entity (QSE) Managers Working Group (QMWG) and Nodal Advisory Task Force (NATF) are addressed by ERCOT regarding performance metrics as outlined in Nodal Protocol Section 8, Performance Monitoring, it is envisioned that additional changes from those discussions will be incorporated into this NPRR. 07/14/2010 Luminant No 2.1, 2.2, 3.1.4.6, 3.1.4.8, 8.1.1.1, 8.1.1.2.1.2, 8.1.1.2.1.3, 8.1.1.4 Approved
12/01/2010

All sections except for Section 8.1.1.4.1(6)-(7)

NPRR257 Synchronization with Nodal Operating Guide Section 9, Monitoring Programs and Changes to Posting Requirements of Documents Considered CEII (formerly "Synchronization with Nodal Operating Guide Section 9, Monitoring Programs") This Nodal Protocol Revision Request (NPRR) grey-boxes multiple sections of the Nodal Protocols to align with Nodal Operating Guide Section 9, Monitoring Programs. This NPRR also changes the posting requirement for certain Black Start documents which meet the definition of Critical Energy Infrastructure Information (CEII) and removes the requirement for posting Black Start procedures for Resource Entities that have Black Start Agreements with ERCOT since 8.1 is related to performance monitoring. 07/22/2010 ERCOT No 6.5.7.3, 6.5.9.6, 8, 8.1, 8.2, 8.3 Approved
01/03/2011

Sections 6.5.7.3(partial) and 8.2(partial)

12/01/2010

Sections 6.5.9.6, 8.1(partial), 8.2(partial), and 8.3(partial)

NPRR258 Synchronization with PRR824 and PRR833 and Additional Clarifications This Nodal Protocol Revision Request (NPRR): (1) Synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 824, Primary Frequency Response from WGRs and PRR833, Primary Frequency Response Requirement from Existing WGRs; (2) Refines and clarifies the definition of Generation Resource Energy Deployment Performance (GREDP); (3) Moves the definition of Measurable Event to Section 2.1; and (4) Proposes a definition for Dead Band as defined in Section 6.2.1.4, Definitions, of the zonal Operating Guides. 07/22/2010 PDCWG No 2.1, 2.2, 3.17.2, 6.5.7.6.2.2, 8.1.1.4.1, 8.1.1.4.2, 8.5, 8.5.1.1, 8.5.1.2, 8.5.1.3, 8.5.2, 8.5.2.1 Approved
10/25/2011

Section 8.1.1.4.1

12/01/2010

All sections except for Section 8.1.1.4.1

NPRR259 Resolution of Alignment Items A175 and A176 - Settlement of Generation Resources Dispatched to Meet System Reliability Requirements This Nodal Protocol Revision Request (NPRR) clarifies that all commitments of a specific Generation Resource in response to an ERCOT Dispatch Instruction (whether issued electronically or verbally) for the commitment of that Generation Resource will be considered to be a Reliability Unit Commitment (RUC) and will be settled in accordance with the RUC Settlement provisions described in the Nodal Protocols. 07/27/2010 ERCOT No 5.1, 6.5.9.4.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR260 Providing Access to MIS Secure Area to MIS Registered Users This Nodal Protocol Revision Request (NPRR) adds "Independent Market Information System (MIS) Registered Entity" to Section 2.1 and Section 22, Attachment A. By doing so, the Standard Form Market Participant Agreement would bind Independent MIS Registered Entities to the Nodal Protocols and, in particular, provisions in Section 16.12. 08/05/2010 Crescent Power No 2.1, Definitions 16.12, User Security Administrator and Digital Certificates 16.15, Registration of Independent Market Information System Registered Entity(new) 22, Attachment A: Standard Form Market Participant Agreement Approved
03/04/2013
NPRR261 Revision of Data Submission Timeline for Network Model This Nodal Protocol Revision Request (NPRR) removes the three-month summer model and replaces it with individual model packages for each month. This NPRR also separates item (5) of Section 3.10.4 into three paragraphs for clarification of ERCOT’s requirements. 08/08/2010 ERCOT No 3.10.1, 3.10.4 Approved
01/03/2011

All remaining sections

12/01/2010

Section 3.10.4

NPRR262 Protocol Synchronization for Nodal Implementation Surcharge This Nodal Protocol Revision Request (NPRR) modifies the Nodal Implementation Surcharge (NIS) calculation to mirror the existing zonal calculation, by including generation from Non-Modeled Generators and energy imported into the ERCOT System during a declared Emergency Condition through each Direct Current Tie (DC Tie) in response to an ERCOT Dispatch Instruction. 08/08/2010 ERCOT No 9.16.4, ERCOT Nodal Implementation Surcharge Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR263 Resolution of Alignment Item A99 - Settlement Point Price Calculation When Busses are De-energized This Nodal Protocol Revision Request (NPRR) adds the requirement for ERCOT to assign a Locational Marginal Price (LMP) for use in the calculation of Day-Ahead and Real-Time Settlement Point Prices. 08/10/2010 ERCOT No 4.5.1, 6.6.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR264 Clarification of Nodal Protocol Requirements for Generators With Multiple Points of Interconnection This Nodal Protocol Revision Request (NPRR) adds language to specify that for a new Point of Interconnection (POI), Generation Resources must comply with provisions of Other Binding Documents (OBDs), Section 3.15, Voltage Support, and Nodal Operating Guide Section 2.9, Voltage Ride-Through Requirements for Generation Resources, based upon the execution date of the most recent Standard Generation Interconnection Agreement (SGIA). For existing Generation Resources with more than one POI, compliance with these requirements is based on the execution of the SGIA relative to the POI where the Generation Resource is electrically connected. This NPRR also revises the definition of POI to clarify that the POI is determined by the voltage level and substation, rather than the location, of the relevant interconnection. 08/12/2010 WMS No 1.6.5, 2.1 Approved
07/01/2011
NPRR265 MIS Secure Area Posting of Resource Category -- As-Built Clarification This Nodal Protocol Revision Request (NPRR) accounts for the posting of Resource Categories as a secure extract to the Market Information System (MIS) Secure Area in support of calculating Minimum and Maximum Resource Prices in Congestion Revenue Right (CRR) Settlement. This NPRR also adds a definition for "Resource Category." 08/31/2010 ERCOT No 2.1, 7.9.1.3 Approved
12/01/2010
NPRR266 Installed Capacity of Unregistered Distributed Generation (DG) This Nodal Protocol Revision Request (NPRR) clarifies that only the capacity of unregistered Distributed Generation Resources (DGs) is totaled for the determination that the DG registration threshold must be lowered. 08/31/2010 CPS Energy No 16.5 Approved
12/01/2010
NPRR267 Remove All References to Pseudo Devices (formerly "Allow ERCOT to Manage Operations Model Pseudo Devices") This Nodal Protocol Revision Request (NPRR) removes references to pseudo devices from the Nodal Protocols. 08/31/2010 AEP No 2.1, 3.10, 3.10.1, 3.10.5, 3.10.7.1, 3.10.7.5.1, 6.5.7.1.13 Approved
12/01/2010
NPRR268 Posting Requirements of Verifiable Costs Documents This Nodal Protocol Revision Request (NPRR) allows ERCOT to post the Verifiable Cost Manual publicly on the ERCOT website. 09/01/2010 ERCOT No 5.6.1 Approved
12/01/2010
NPRR269 Synchronization of PRR830, Reactive Power Capability Requirement This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with Protocol Revision Request (PRR) 830, Reactive Power Capability Requirement, approved by the ERCOT Board on 11/17/2009. In addition, Nodal Protocol references to Point of Interconnection (POI) are being updated to reflect the defined term where appropriate. 09/09/2010 ERCOT No 2.1, 2.2, 3.10.7.3, 3.15, 3.15.1, 3.15.2, 6.5.7.7, 10.3.2.2, 10.3.2.3, 11.1.5 Approved
12/01/2010
NPRR270 Defining the Variable Used in the Wind Generation Formula This Nodal Protocol Revision Request (NPRR) inserts variable definitions for the wind adjust formula in the grey-boxed language for Section 11.4.4.2; and changes references of Transmission and/or Distribution Service Provider (TDSP) to Distribution Service Provider (DSP) where appropriate in Section 10.2.2. 09/13/2010 ERCOT No 10.2.2, 11.4.4.2, 11.4.4.3 Approved
12/01/2010
NPRR271 Synchronization to PRR850, Weather Responsiveness Determination for Interval Data Recorders This Nodal Protocol Revision Request (NPRR) aligns the Nodal Protocols with zonal Protocols by adding language that limits the applicability of the weather responsiveness test to Interval Data Recorder (IDR) Meters. 09/13/2010 ERCOT No 11.4.3, 11.4.3.1 Approved
12/01/2010
NPRR272 Definition and Participation of Quick Start Generation Resources This Nodal Protocol Revision Request (NPRR) provides language for effective participation of Quick Start Generation Resources (QSGRs) in Security-Constrained Economic Dispatch (SCED). Revisions for which implementation is not necessary prior to the Texas Nodal Market Implementation Date are grey-boxed. See also the White Paper entitled "Proposal for Determining Mitigated Cap Variable O&M Cost for Quick Start Generation Resources" included with this NPRR submission as an attachment. 09/15/2010 ERCOT No 2.1, 2.2, 3.8, 3.8.3, 3.9.1, 4.4.9.4.1, 6.4.6, 6.6.5.3, 6.6.9, 6.6.9.1, 8.1.1.2 Approved
12/01/2010

Sections 2.1, 2.2, 3.8, 3.8.3 (partial), and 3.9.1 (partial)

03/09/2017

All remaining sections

NPRR273 Allow Use of the ONTEST Resource Status to Indicate Resource Startup, Shutdown and Test Operations The Generation Resource Status of "ONTEST" was originally created in the Protocols to recognize generation unit test operations that could not be dispatched by Security-Constrained Economic Dispatch (SCED). These operations included testing of the unit for economic performance, emissions compliance, qualification for provision of Ancillary Services, voltage/MVaR management, and other unit testing activities. This Nodal Protocol Revision Request (NPRR) expands the use of this Resource Status to provide for Generation Resource operations during start up and shut down of the unit as well as unit testing requirements. The Resource Status "ONTEST" will allow for Qualified Scheduling Entities (QSEs) to indicate to ERCOT through telemetry that the Resource is operating in a start-up or shut-down sequence and is being manually dispatched by the QSE in addition to the original purpose to indicate that the Generation Resource is performing a test of its operations either manually dispatched by the QSE or by ERCOT as part of the testing. This Resource Status will be recognized by the current nodal systems design and will cause the SCED output Base Point to be set equal to the net real power telemetry of the Resource at the time of SCED execution. The Resource Status "ONTEST" will also be recognized in Settlements and considered a Base Point Deviation charge exemption. Resource Status will replace the Low Sustained Limit (LSL)/ High Sustained Limit (HSL) telemetry as an input to the TELHSLFLAG due to system limitations. Consistent with the additional uses of the Resource Status code, its description has been revised to remove the requirement that an Output Schedule is required when this Resource Status is assigned by the QSE. 09/15/2010 ERCOT No 3.9.1, 3.9.2, 6.4.2.4, 6.4.3, 6.5.7.8, 6.6.5 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR274 Generic Startup Costs for Combined Cycle Generation Resources -- Removal of Temporal Constraint This Nodal Protocol Revision Request (NPRR) removes the Startup Offer Generic Cap Resource Categories for Combined Cycle Generation Resources with less than five hours Off-Line. 09/15/2010 ERCOT No 4.4.9.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR275 Clarify QSE’s Ability to Make Changes to Ancillary Service Resource Responsibility In Real Time This Nodal Protocol Revision Request (NPRR) clarifies the responsibility of Qualified Scheduling Entities (QSEs) to telemeter the Ancillary Service Resource Responsibility for each Resource in Real-Time. 09/16/2010 ERCOT No 6.3.1, 6.3.2, 6.4.6, 6.4.6.1 Approved
04/01/2011
NPRR276 MIS Posting Requirement for the Network Operations Model Load Schedule This Nodal Protocol Revision Request adds a Market Information System (MIS) Public Area posting requirement for the database load schedule. 09/16/2010 ERCOT No 3.10.1 Approved
04/01/2011
NPRR277 Removal of NPRR119 Language for LDL Calculation and Modification to the SCED Ramp Rate Calculation (formerly "Removal of NPRR119 Language for LDL Calculation") This Nodal Protocol Revision Request (NPRR) removes changes that were made to the Low Dispatch Limit (LDL) calculation within the Resource Limit Calculator (RLC) as part of NPRR119, Resource Limit Calculator. The language in this NPRR will ensure that a Resource’s Dispatch limits are calculated taking into consideration the Resource’s current net MW output and ramp rates. This NPRR also changes the Security-Constrained Economic Dispatch (SCED) Up and Down Ramp Rate calculation (SURAMP and SDRAMP) to reduce the amount of ramp rate that is reserved for Regulation Service. 09/16/2010 ERCOT No 6.5.7.2, 8.1.1.4.1 Approved
12/01/2010
NPRR278 Emergency Interruptible Load Service (EILS) Modifications to Correct Self-Provision Settlement Equations, to Accommodate Advanced Metering Infrastructure, and other Clarifications This Nodal Protocol Revision Request (NPRR) proposes several modifications to the Nodal Protocols relating to EILS. The four changes proposed in this NPRR that ERCOT considers to be most important are as follows: · Amends Section 3.14.3, specifically paragraphs (8)(b), (c) and (d), and Sections 6.6.11.1 and 6.6.11.2 to correct a Settlement inequity for Qualified Scheduling Entities (QSEs) providing EILS through Self-Provision. · Amends Section 8.1.3.1, specifically paragraph (2)(b), to provide ERCOT with an important option for accommodating EILS Loads potentially consisting of large aggregations of Customers with Advanced Meters. · Amends paragraph (7)(f) of Section 3.14.3 to remove the requirement that EILS capacity offers must be submitted in whole MW amounts. · Adds a new paragraph (5)(e) to Section 8.1.3.1 to define a mechanism for ERCOT to reduce the payment for an EILS Load that fails two consecutive Load-shed tests in an EILS Contract Period. In addition, this NPRR proposes additional modifications related to EILS that ERCOT considers to be clarifying in nature. For additional detail regarding the revisions proposed in this NPRR, please see "Comments" section of NPRR submission form (Key Documents tab). 09/16/2010 ERCOT No 2.1, 3.14.3, 6.6.11.1, 6.6.11.2, 8.1.3.1, 8.1.3.2, 8.1.3.3, 8.1.3.3.1 Approved
02/01/2011
NPRR279 Resolution of Alignment Item A144 - Clarify Posting of MCPC for DAM and SASM This Nodal Protocol Revision Request (NPRR) conforms the Nodal Protocols to the system and business process implementation for posting of prices from the Day-Ahead Market (DAM) and any Supplemental Ancillary Services Market (SASM). Reports of clearing prices in the DAM and SASM will be reviewed and if the potential exists for a change in the prices, ERCOT will notify Market Participants and describe the nature of the error and any conditions that may have caused the error. 09/15/2010 ERCOT No 4.5.3, 6.3, 6.4.8.2.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR280 Move Shift Factor Posting Requirement to Real-Time This Nodal Protocol Revision Request (NPRR) moves the requirement to post Shift Factor data from the Day-Ahead Operations section (Section 4.2.3) of the Nodal Protocols as a daily posting to the Real-Time operations section (Section 6.5.7.1.13) as an hourly posting. 09/23/2010 ERCOT No 4.2.3, 6.5.7.1.13 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR281 Replace 7-Day Forecast Requirement for QSEs Representing WGRs This Nodal Protocol Revision Request (NPRR) eliminates the requirement that Qualified Scheduling Entities (QSEs) representing Wind-powered Generation Resources (WGRs) must provide a 7-day forecast in their COP. Instead, for hours 49-168, QSEs representing WGRs shall, using their best estimate enter a High Sustained Limit which may be based on the wind power profile as published on the ERCOT website. 09/26/2010 AEP Energy Partners No 3.9.1 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/20/10 Nodal Protocols Library)

NPRR282 Dynamic Ramp Rates Use in SCED This Nodal Protocol Revision Request (NPRR) proposes revisions that are intended to result in more reasonable Dispatch of Generation Resources when a telemetered Base Point requires the Resource to employ technologies that in turn change the Resource’s ramp rate. For example, when Security-Constrained Economic Dispatch (SCED) generates a new Base Point for a unit that is currently at baseload, SCED uses a static ramp rate found in the Resource Parameters database that does not accurately reflect the dynamic ramp rate that the unit can deliver as it leaves baseload status (ten MW/min. for some units) and goes into duct burners (one MW/min. for some units) or through duct burners into other technologies such as certain forms of power augmentation. Instead of using the declared static ramp rates at designated output levels, SCED should use a dynamic ramp rate that can be telemetered by the Qualified Scheduling Entity (QSE) to ERCOT using the Inter-Control Center Communications Protocol (ICCP) database with an update rate of two or four seconds, which will better match the unit’s ramp rate capability during the SCED execution. The up and down ranges of this telemetered dynamic ramp rate are best defined by ERCOT based on its experience in the Nodal Market trials and its view of the SCED Base Point outcomes and its analysis of the Generation Resource Energy Deployment Performance (GREDP) scores and Regulation Service deployed. 09/28/2010 Calpine No 2.1, 6.5.7.1.12, 6.5.7.2 Approved
07/26/2011
NPRR283 Clarification of PCRR Allocation Eligibility This Nodal Protocol Revision Request (NPRR) extends Pre-Assigned Congestion Revenue Right (PCRR) eligibility for certain wholesale supply over the high voltage Direct Current Ties (DC Ties). 09/30/2010 Tex-La Electric Cooperative of Texas, Inc. No 7.4.1 Approved
04/01/2011
NPRR284 Cost Allocation Zones as They Relate to NOIE Load Zones -- As Built Systems Changes the Cost Allocation Load Zone assignment for NOIE Load Zones to a single 2003 Congestion Management Zone (CMZ) for go-live. 09/29/2010 ERCOT No 3.4.3 Approved
12/01/2010

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (11/01/10 Nodal Protocols Library)

NPRR285 Generation Resource Base Point Deviation Charge Corrections This Nodal Protocol Revision Request (NPRR) provides that an exception to the Generation Resource Base Point Deviation Charge for any 15-minute Settlement Interval which includes a Security-Constrained Economic Dispatch (SCED) interval that is less than four minutes in duration. Additional changes are proposed to Base Point Deviation Charges for over- and under-generation, to be effective upon system implementation. This NPRR also removes the Base Point Deviation Charge for all Intermittent Renewable Resources (IRRs) until corrections to the Nodal systems can be implemented so that the charge applies to IRRs only when there is clear indication that the Base Point received needs to be followed. A flag will be sent by ERCOT to the Qualified Scheduling Entity (QSE) for each Resource indicating SCED has Dispatched a Generation Resource below the High Dispatch Limit (HDL) used by SCED. This flag will be used by the Settlement system to determine when the IRR Generation Resource Base Point Deviation Charge will apply. In addition, the calculations are changed to apply the charge whether the Settlement Point Price is negative or positive. 10/12/2010 WMS No 6.5.5.2, 6.5.7.4, 6.5.7.9, 6.6.5.1, 6.6.5.1.1, 6.6.5.1.2, 6.6.5.2 Approved
05/18/2011

Sections 6.5.5.2, 6.5.7.4(d), and 6.5.7.9

06/01/2011

Sections 6.6.5.1, 6.6.5.1.1, 6.6.5.1.2, and 6.6.5.2

NPRR286 DAM Credit -- Non-Business Day Processing This Nodal Protocol Revision Request (NPRR) will allow ERCOT to send Available Credit Limits (ACLs) to Counter-Parties participating in the Day-Ahead Market (DAM) and to send related collateral requests, as needed, on non-Business Days. 10/14/2010 ERCOT No 4.4.10, 16.11.4.1, 16.11.4.3, 16.11.4.4, 16.11.4.5, .11.4.6.2, 16.11.4.7, 16.11.5, Approved
12/01/2010
NPRR288 Selection of CRR Load Distribution Factors for Use in CRR Monthly and Annual Auctions As ERCOT has worked through improvements in development of the Load distribution factor values used in the Day-Ahead Market (DAM) and Network Model validation process, this Nodal Protocol Revision Request (NPRR) has been created to allow the Congestion Revenue Right (CRR) Auction process to leverage use of this alternative Load distribution factor for monthly CRR Auctions. In this manner, the monthly CRR Auction and DAM are more operationally accurate and aligned. This NPRR also includes a change to Section 7.3 to clarify that the Flowgate Revenue Rights, which ERCOT is required to auction, are those flowgates defined and described in accordance with Section 7.3.1, Flowgates. 10/20/2010 ERCOT No 7.3, 7.5, 7.5.1 Approved
12/01/2010
NPRR289 Clarify Use of Raise/Lower Block Status Telemetry This Nodal Protocol Revision Request (NPRR) inserts language into Section 6.5.5.2 to clarify the proper use of Raise Block Status and Lower Block Status telemetry points by Resource operators in Real-Time operations. 10/28/2010 ERCOT No 6.5.5.2 Approved
04/01/2011
NPRR290 ERCOT Publication of DAM PSS/E Files This Nodal Protocol Revision Request (NPRR) enhances transparency of the transmission topology (including all scheduled Outages) used in the Day-Ahead Market (DAM) by requiring ERCOT to publish certain data files (in Power System Simulator for Engineering (PSS/E format) for easy review by all Market Participants with standard power flow tools such as PTI PSS/E, Power World Simulator, etc. Much of the tools needed by ERCOT to meet the requirements of this NPRR were developed and semi-automated during the Nodal DAM market trials and this NPRR seeks to leverage that work for long term market benefit. 10/27/2010 Henry Durrwachter on behalf of Luminant Energy Company LLC No 4.2.3 Approved
11/26/2011

Section 4.2.3(a)-(b)

12/09/2011

All remaining sections

NPRR291 Reduce the Comment Period for NPRRs and SCRs This Nodal Protocol Revision Request (NPRR) reduces the comment period for NPRRs and System Change Requests (SCRs) from 21 days to 14 days and removes the requirement for the comment period to end at least three Business Days prior to the next regularly scheduled meeting of the subcommittee considering the NPRR or SCR. 10/28/2010 ERCOT No 21.4.3, 21.8.3 Approved
04/01/2011
NPRR292 Add Key Provisions of RPG Charter to Protocols This Nodal Protocol Revision Request (NPRR) adds certain key provisions of the Regional Planning Group (RPG) Charter and Procedures (the RPG Charter), approved by the Board in January 2009, to the Nodal Protocols without changing requirements or process. This NPRR also revises certain language within the existing Nodal Protocols for consistency with the added provisions and to coordinate with future Planning Guides. If needed, substantive changes to the planning process will be addressed through other NPRR and Planning Guide Revision Requests (PGRRs). 10/29/2010 Planning Working Group (PLWG) No 2.1, 2.2, 3.1.3.1, 3.11.1, 3.11.2, 3.11.3, 3.11.4, 3.11.4.1, 3.11.4.2, 3.11.4.3, 3.11.4.4, 3.11.4.5, 3.11.4.6, 3.11.4.7, 3.11.4.8, 3.11.4.9, 3.11.4.10, 3.11.6 Approved
04/01/2011
NPRR293 Requirement to Post PTP Obligation Quantities Awarded in DAM (formerly "Requirement to Post CRR Option and Obligation Quantities Cleared in DAM or Taken to Real Time") This Nodal Protocol Revision Request (NPRR) adds language to specify the need for ERCOT to post quantities of Point-to-Point (PTP) Obligations that were awarded in the Day-Ahead Market (DAM). 11/03/2010 Luminant Energy Company, LLC Yes 4.5.3 Approved
12/14/2010

Section 4.5.3(partial)

05/18/2011

All remaining sections

NPRR294 Texas SET 4.0 Including: Acquisition and Transfer of Customers From One REP to Another; Meter Tampering Transactional Solution This Nodal Protocol Revision Request (NPRR) defines the process for Mass Transition of Electric Service Identifiers (ESI IDs) from one Competitive Retailer (CR) to another CR when transitioning due to an acquisition, the process for switch hold indicator addition and removal, and other various changes deemed to be implemented with Texas Standard Electronic Transaction (TX SET) version 4.0. Changes to accommodate priority move-outs (including addition of the priority code and one hour processing of priority move-outs by ERCOT) and same day switches (changing the First Available Switch Date (FASD) to zero) are pending a Public Utility Commission of Texas (PUCT) rulemaking and are subject to revision. 11/05/2010 Jennifer Frederick on behalf of Texas SET Working Group No 15, 15.1.1, 15.1.1.2.2, 15.1.1.3, 15.1.1.4, 15.1.1.5, 15.1.1.6, 15.1.1.7, 15.1.1.8, 15.1.3, 15.1.3.1 (new); 15.1.3.2 (new) 15.1.3.1, 15.1.4.1, 15.1.4.2, 15.1.4.3, 15.1.4.4, 15.1.4.5, 15.1.4.5.1, 15.1.4.6, 15.1.4.7, 15.1.4.7.1, 15.1.4.7.2, 15.1.4.8, 15.1.5.1, 15.1.5.2, 15.1.5.3, 15.1.5.4, 15.1.5.5, 15.1.5.6, 15.1.5.7, 15.1.7. 15.1.8, 15.1.9.1, 15.1.9.2, 15.1.9.3, 15.1.9.4, 15.1.10, 15.1.10.1, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.2, 15.2.3, 15.3, 15.4.1, 15.4.1.4, 15.4.1.5, 19, 19.3.1, 19.4.1, 24.1, 24.1.1, 24.1.2.1, 24.1.2.2, 24.1.3 (new), 24.1.3.2 (new), 24.2, 24.3.1, 24.3.1.4, 24.4, 24.4.5, 24.5.1, 24.6.1, Approved
06/11/2012
NPRR295 Synchronization of Protocol for Generation Resource Designation as Mothballed or Decommissioned This Nodal Protocol Revision Request (NPRR) synchronizes the Nodal Protocols with zonal Protocol Section 6.5.9.3, Generation Resource Return to Service Updates, regarding return-to-service of Mothballed or Decommissioned Generation Resources. In addition, a clarification was made for removal of Decommissioned Generation Resources from ERCOT registration systems. 11/11/2010 ERCOT Yes 2.1, 3.14.1.9, 22, Attachment H: Approved
12/14/2010
NPRR296 Remove Posting Requirement for the Annual Planning Model for the CRR Auction This Nodal Protocol Revision Request (NPRR) removes the requirement to post a schedule for updating transmission information for the Annual Planning Model six months prior to the annual and two-year Congestion Revenue Right (CRR) Auctions. 11/15/2010 ERCOT No 3.10.2 Approved
04/01/2011
NPRR297 Add Administrative NPRR Process to Nodal Protocols This Nodal Protocol Revision Request (NPRR) adds a process for "Administrative NPRRs" to the Nodal Protocols modeled on the similar process for administrative market guide revisions contained in each of the market guides. 11/23/2010 ERCOT No 21.1, 21.6 Approved
04/01/2011
NPRR298 New Definitions Related to Black Start and Clarification to the Hourly Standby Fee Payments for Black Start Resources (formerly "New Definitions Related to Black Start") This Nodal Protocol Revision Request (NPRR) proposes new definitions to Section 2.1 and clarifies the use of black start terminology in other sections of the Nodal Protocols. This NPRR also identifies uses of the proposed terms(s) and makes language changes if applicable and aligns the terminology and acronym related to the Hourly Standby Fee Payment with Section 6.6.8.1, Black Start Capacity Payment. 11/29/2010 Operations Working Group (OWG) No 2.1, 3.14.2, 6.5.9.6, 8.1.1.2.1.5, 22D Approved
05/01/2011
NPRR299 Remove Requirement for ERCOT Board Approval of PUCT, IMM, and FERC Required Reports This Nodal Protocol Revision Request (NPRR) modifies the Nodal Protocols to better capture the requirement for ERCOT to prepare and submit reports in accordance with its regulatory requirements. This NPRR removes the need for the ERCOT Board, Public Utility Commission of Texas (PUCT) Staff and Independent Market Monitor (IMM) to approve a schedule and format for reports. 11/30/2010 ERCOT No 17.5 Approved
09/01/2011
NPRR301 Correct Energy Trade Language for Adjustment Period This Nodal Protocol Revision Request (NPRR) revises the language in Section 4.4.2 for entering Energy Trades in the Adjustment Period to match that of the latest Edison Electric Institute.(EEI) Amendment. 12/03/2010 Morgan Stanley No 4.4.2 Approved
05/01/2011
NPRR302 Correct Fuel Type Language for Mitigated Offer Cap This Nodal Protocol Revision Request (NPRR) revises the language for the Mitigated Offer Cap to eliminate use of the Fuel Oil Price (FOP) in the calculation. 12/07/2010 Morgan Stanley Yes 4.4.9.4.1 Approved
03/24/2011
NPRR303 Requirement to Post PTP Options Cleared in DAM or Taken to Real-Time This Nodal Protocol Revision Request (NPRR) adds language to specify the need for ERCOT to post quantities of Point-to-Point (PTP) Options and PTP Options with Refund that were not cleared in the Day-Ahead Market (DAM) and taken to Real-Time for Settlement. 12/16/2010 Luminant Energy Company, LLC Yes 4.5.3 Approved
05/18/2011
NPRR304 Removal of Frequency Bias Methodology Approval Requirement This Nodal Protocol Revision Request removes the requirement for ERCOT to develop a methodology, subject to Technical Advisory Committee (TAC) approval, to determine the optimal frequency bias for given system conditions. 12/17/2010 ERCOT No 6.5.7.6.1 Approved
05/01/2011
NPRR305 Timeline for Calculating the Value of X This Nodal Protocol Revision Request (NPRR) removes from the Nodal Protocols language describing the effective date for the value of X for the purpose of determining verifiable startup costs and instead refers to the Verifiable Cost Manual as the source for such information. 01/11/2011 VCWG Yes 5.6.1.1 Approved
04/01/2011
NPRR306 Revisions to Protected Information to Include Black Start Documents Considered CEII This Nodal Protocol Revision Request (NPRR) revises Section 1.3.6 to include Black Start documents that meet the definition of Critical Energy Infrastructure Information (CEII). 01/11/2011 OWG No 1.3.6 Approved
06/01/2011
NPRR307 Change SASM Offer Procedures This Nodal Protocol Revision Request (NPRR) deletes the requirement of valid SASM offers to be at or below the value of the offers in the Day Ahead Market (DAM); and strikes the grey-box for NPRR164. 01/11/2011 Morgan Stanley Yes 6.4.8.2.1 Approved
05/25/2011
NPRR310 Expand Output Schedule Acceptable Range to Include HSL and LSL This Nodal Protocol Revision Request (NPRR) updates the criteria by which Output Schedules are deemed valid to include Output Schedules that are equal in value to the Resource High Sustained Limit (HSL) and Low Sustained Limit (LSL). 01/14/2011 Tenaska No 6.4.2.3 Approved
12/09/2011
NPRR311 Correction of Wind Adjust Formula to Account for Daylight Savings Time This Nodal Protocol Revision Request (NPRR) corrects the formula for the reduction of wind excess generation to account for Daylight Savings Time (DST) adjustments in the Spring and Fall for Electric Service Identifiers (ESI ID)s with non- Interval Data Recorders (IDR)s. 02/01/2011 ERCOT No 11.4.4.2 Approved
09/01/2011
NPRR312 Clarification of QSE Requirements for Split Generation Resources This Nodal Protocol Revision Request (NPRR) defines Master QSE, clarifies the designation and responsibilities of the Master QSE for a Generation Resource that has been split to function as two or more Split Generation Resources, and clarifies the responsibilities of the QSEs for such Split Generation Resources. This NPRR also addresses Settlement and billing disputes related to the application of integrated Real-Time telemetry from a Generation Resource that has been split to function as two or more Split Generation Resources. 02/01/2011 ERCOT Yes 2.1, 3.1.4.1, 3.8.1, 3.10.7.5.2, 6.5.5.2, 6.5.7.8, 9.14.8, 10.3.2.1, 10.3.2.1.1, 10.3.2.1.2, 10.3.2.1.3, 10.3.2.1.4, 10.3.2.1.5 Approved
08/01/2011
NPRR313 Revisions to the Resource Plan Reference to Current Operating Plan for EILS and Synchronous Condensers and Black Start Notification Requirements (formerly "Updating the Term Resource Plan to Current Operating Plan") This Nodal Protocol Revision Request (NPRR) replaces the term "Resource Plan" with the term "Current Operating Plan" or "Availability Plan" in those instances where the change in terminology was not previously made. This NPRR also proposes adding a Black Start capable status indicator to the Availability Plan to allow ERCOT to settle payment for Black Start units programmatically; and allows Qualified Scheduling Entities (QSEs) with Black Start units to provide all of the Black Start availability through the Availability Plan. 02/01/2011 Luminant Energy Company LLC No 2.1, 3.14.3, 4.3, 22, Attachment D, Attachment F, Approved
09/01/2011

All sections except for Sections 22B, 22D, and 22F

02/14/2013

All remaining sections

NPRR314 Requirement to Post Generation Resources Temporal Constraints This Nodal Protocol Revision Request (NPRR) adds language to specify the need for ERCOT to post to the Market Information System (MIS) Certified Area the current time since a Generation Resource last went Off-Line (in hours) and the corresponding startup time ERCOT is using for of all Off-Line Generation Resources which may be considered in any Reliability Unit Commitment (RUC) process. 02/01/2011 Luminant Energy Company, LLC No 5.1 Approved
04/27/2012
NPRR316 Negative Self-Arranged Ancillary Services Quantity (formerly "Negative Self-Arranged Ancillary Services") This Nodal Protocol Revision Request (NPRR) allows Qualified Scheduling Entities (QSEs) to enter a negative value for a Self-Arranged Ancillary Service Quantity. This NPRR is an alternative approach to NPRR131. If NPRR316 is approved, NPRR131, Ancillary Service Trades with ERCOT, will no longer be needed. All grey-boxed sections associated with NPRR131 would be removed. 02/02/2011 Morgan Stanley Yes 2.1, 4.3, 4.4.7.1, 4.4.7.1.1 (new), 4.4.7.3, 4.4.7.4, 4.4.10, 4.5.1, 4.6.4.2.2, 4.6.4.2.3, 4.6.4.2.4 Approved
12/09/2011
NPRR317 Clarification of Entity Responsible for Hydro Responsive Testing This Nodal Protocol Revision Request (NPRR) clarifies the Entity responsible for hydro responsive testing. 02/04/2011 ERCOT No 8.1 Approved
07/01/2011
NPRR318 Alignment of Nodal Registration Requirements with Current Registration Process This Nodal Protocol Revision Request (NPRR) aligns the registration requirements in Section 16.1 with the current registration process. 02/04/2011 ERCOT No 16.1 Approved
07/01/2011
NPRR319 Required Documentation to Recover Fuel Costs for RUC Deployments This Nodal Protocol Revision Request (NPRR) clarifies what type of documentation Qualified Scheduling Entities (QSEs) must submit to ERCOT as proof of natural gas purchases when requesting additional compensation for fuel costs incurred when providing Reliability Unit Commitment (RUC) services. The NPRR further clarifies which documents are deemed acceptable as proof of fuel purchases and directs QSEs to request ERCOT Board approval for documentation not covered by the Nodal Protocols. 02/07/2011 ERCOT No 9.14.7 Approved
08/01/2011
NPRR320 Minimum PTP Option Bid and Settlement (formerly "Minimum PTP Option Bids and CRR Auction Fees") This Nodal Protocol Revision Request (NPRR) sets a minimum price on PTP Option bids (Minimum PTP Option Bid Price) of $0.010 and places a fee on each PTP Option bid awarded where the clearing price for the PTP Option bid awarded is less than the Minimum PTP Option Bid Price. Upon implementation of system changes, the revenue from the fees will be put in the Congestion Revenue Right (CRR) Balancing Account. Until system changes are implemented, the PTP Option Bidding Fee will be invoiced separately from CRR Invoices using a Miscellaneous Invoice, and the revenue from the fees will be distributed by the Monthly Load Ratio Share (LRS) and through the use of a Miscellaneous Invoice. 02/08/2011 Bob Wittmeyer Yes 2.1, 7.5.2, 7.5.2.3, 7.5.7, 7.6, 7.7 (new), 7.7.1 (new), 7.7.2 (new), 7.9.3.4, 7.9.3.5, 9.8 Approved
05/01/2011

All sections except for Sections 7.7.2, 7.9.3.4, 7.9.3, and 9.8

12/01/2011

Sections 7.7.2, 7.9.3.4, 7.9.3, and 9.8

NPRR321 Allow Change to Energy Offer Curve MW Amounts in the Adjustment Period (formerly "Allow Change to Energy Offer Curve MW Amounts in the Adjustment Period for Qualifying Facilities") This Nodal Protocol Revision Request (NPRR) would provide the ability for Resources to change the amounts of power in their Energy Offer Curves in the Adjustment Period. 02/10/2011 Calpine No 4.4.9.3, 5.5.2 Approved
12/09/2011

Section 4.4.9.3

09/26/2013

All remaining sections

NPRR322 Real-Time PTP Option Modeling This Nodal Protocol Revision Request (NPRR) provides that all Point-to-Point (PTP) Options will be settled in the Day-Ahead Market (DAM), unless DAM fails to execute. If a Non-Opt-In Entity (NOIE) purchases a PTP Obligation in the DAM and owns a PTP Option for the same source and sink pair, and the MWs of the PTP Obligation are not more than the MWs of the PTP Option, then the PTP Obligation will settle in Real-Time as only the positive difference between the sink and source Settlement Point Prices, much like a PTP Option. This NPRR also includes a requirement that NOIEs shape the PTP Options going to Real-Time according to their Load forecast and adds a new type of Congestion Revenue Right (CRR) to handle the treatment of PTP Obligations that are treated as PTP Options for Settlement purposes. 02/10/2011 Luminant Energy Company LLC Yes 2.1, 3.2.5, 4.3, 4.4.5, 4.4.5.1, 4.4.5.2, 4.4.6, 4.4.6.1, 4.4.6.2, 4.4.10, 4.5.1, 4.5.3, 4.6.3, 6.6.10, 7.9.1.3, 7.9.1.6, 7.9.2.1, 7.9.2.2, 7.9.2.3, 7.9.3.1, 7.9.3.3, 7.9.3.4, 9.5.3, 9.19.1 Approved
06/22/2011

Sections 4.4.5(4), 4.4.5.1(4), and 4.4.5.2(1)

02/14/2013

All remaining sections

NPRR323 Correct DAM Credit Exposure Language and Enable Qualified Expiring CRRs to Offset PTP Bid Exposure This NPRR revises the language in Section 4.4.10 to match the implemented DAM credit exposure calculations for Three-Part Supply Offers as they relate to combined cycle and to PTP bid calculations currently identified in paragraph (6)(d) of Section 4.4.10; right size the credit exposure calculation for DAM transactions submitted via the use of an energy-only bid curve to equate to the maximum exposure; and right size the credit exposure calculation for DAM PTP bids where a qualified expiring Congestion Revenue Right (CRR) offsets cleared DAM exposure. 02/10/2011 Tenaska Power Services Yes 4.4.10 Approved
07/26/2011

All sections except for Section 4.4.10(6)(a)

08/24/2011

Section 4.4.10(6)(a)

NPRR324 Conductor/Transformer Transmission Facility Rating This Nodal Protocol Revision Request (NPRR) adds the Conductor/Transformer Rating, normally used for Rate C in the Annual Planning Model, as a fourth Transmission Facility Rating and adds the description from the Operating Guides to the Rating terms definitions in the Nodal Protocols. 02/10/2011 ERCOT No 2.1, 2.2, 3.10.7.1.1 Approved
08/01/2011
NPRR325 Price Correction During SCED Process Failure This Nodal Protocol Revision Request (NPRR) clarifies the Settlement method that will be used if ERCOT identifies that Real-Time Settlement Point Prices are erroneous and correcting the error will affect Real-Time Dispatch. 02/10/2011 ERCOT Yes 6.3, 6.5.9.2, 6.6.9 Approved
04/01/2011
NPRR326 Adjust the Calculation of the Real-Time Settlement Point Price for a Resource Node This Nodal Protocol Revision Request (NPRR) adjusts the calculation of the Real-Time Settlement Point Price for a Resource Node. The adjustment is to remove the Base Point weighting of the Real-Time Locational Marginal Prices (LMPs). 02/10/2011 ERCOT No 6.6.1.1 Approved
02/24/2012
NPRR327 State Estimator Data Redaction Methodology This Nodal Protocol Revision Request (NPRR) inserts language to define a redaction methodology for the posting of State Estimator data. 02/22/2011 ERCOT No 3.20 (new), 3.20.1 (new), 3.20.2 (new), 6.5.7.1.13 Approved
NPRR328 Clarifies Duplicative or Vague Requirements Related to Reactive Resources (formerly "Removes ERCOT Requirement for Reactive Resource Planning and the Associated Compliance Process") This Nodal Protocol Revision Request (NPRR) removes a duplicate requirement for ERCOT to plan reactive Resources and also removes an unassigned and vague requirement for a compliance process. 02/23/2011 ERCOT No 3.15.2 Approved
08/01/2011
NPRR329 Security Classification Changes for Extracts/Reports This Nodal Protocol Revision Request (NPRR) changes the security classification to "Public" for extracts/reports that are currently classified in the Nodal Protocols as "Secure"; and suspends the posting of State Estimator Load Reports that reveal individual Load data. 02/23/2011 MIS User Group Yes 3.2.2, 3.2.3, 3.12, 4.2.2, 4.2.3, 4.2.3.1, 5.3, 6.3.2, 6.5.7.1.13, 6.5.9.2, 6.5.9.3.3, 9.17.1 Approved
05/18/2011
NPRR330 Change in Frequency of Four Protocol Required Audits from Annual to Periodic (formerly "Change in Frequency of Five Protocol Required Audits from Annual to Periodic") This Nodal Protocol Revision Request (NPRR) revises the frequency for the ERCOT Internal Audit Department to perform audits from an annual basis to a periodic basis. This NPRR impacts: (1) Three annual ERCOT Internal Audit Department-performed audits that are required by paragraph (2) of Section 1.4.3.1: (a) Ethics Compliance Audit -- Compliance with Code-of-Conduct and Ethics Corporate Standard (b) Confidentiality Compliance Audit -- Compliance with Confidentiality and Protected Information Provisions of Protocols (c) Independence Verification Audit -- ERCOT Administration of Protocols is Independent of Market Participants. The ERCOT Internal Audit Department has performed the above three audits annually since 2008. (2) One independent audit required by paragraph (5) of Section 3.10: (a) Audit of Consistent Information in Operations Models This is a new Nodal Protocol required audit and is being performed for the first time in 2011 by the ERCOT Internal Audit Department. (3) One audit required by Section 17.3.3: (a) Audit of ERCOT Market Monitoring Data Handling Processes This is a new Nodal Protocol required audit and is being performed for the first time in 2011 by the ERCOT Internal Audit Department. The ERCOT Internal Audit Department tentatively plans to perform the above five audits no less than once every three years. 02/24/2011 ERCOT No 1.4.3.1, 3.10, 17.3.3 Approved
07/01/2011
NPRR331 Addition of the Balance of the Year PCRR Allocation This Nodal Protocol Revision Request (NPRR) adds language to paragraphs (c) and (d) of Section 7.4.2 to substantiate the allocation of Pre-Assigned Congestion Revenue Rights (PCRRs) for the balance of calendar year 2011. 02/25/2011 ERCOT Yes 7.4.2 Approved
04/19/2011
NPRR332 Revise QSGR Processes for COP Reporting of QSGR Assigned Off-Line Non-Spin and Application of Emergency Operations Settlement This Nodal Protocol Revision Request (NPRR): Clarifies the COP reporting requirements for a Quick Start Generation Resource (QSGR) that is providing Off-Line Non-Spinning Reserve (Non--Spin) Service in an amount that is greater than High Sustained Limit (HSL) minus Low Sustained Limit (LSL); and Removes the requirement for a Qualified Scheduling Entity (QSE) to contact the ERCOT Operator to request a "manual override" when a QSGR it represents is first deployed by Security-Constrained Economic Dispatch (SCED) from a zero Base Point to a Base Point that is less than the QSGR’s physical LSL. Emergency operations Settlement provisions for QSGR deployments by SCED will be managed internally by ERCOT. 02/25/2011 ERCOT No 3.8.3, 3.9.1, 6.4.6, 6.6.9 Approved
08/01/2011
NPRR333 Removal of Redundant Reporting Requirement Related to Equipment Ratings This Nodal Protocol Revision Request (NPRR) removes a redundant requirement for ERCOT to produce a report regarding equipment Ratings. 02/25/2011 ERCOT No 3.10 Approved
08/01/2011
NPRR335 TSP Request for Interval Data This NPRR aligns the Nodal Protocols with the zonal Protocols, providing TSPs the ability to request and receive interval data from ERCOT. 03/01/2011 Jennifer Bevill on behalf of AEP Yes 3.11.4, 11.1.11 Approved
05/01/2011
NPRR337 Correct Section Reference in Section 1.3.1.1 Pertaining To Protected Information of DC Ties This Nodal Protocol Revision Request (NPRR) aligns the Nodal Protocols with the Zonal Protocols by correcting the section reference in Section 1.3.1.1 to reflect the actual section that contains the Direct Current Tie (DC Tie) Schedule Information that is considered Protected Information. 03/10/2011 ERCOT No 1.3.1.1 Approved
08/01/2011
NPRR338 Modifications to Support Revenue Neutrality This Nodal Protocol Revision Request (NPRR) deducts the amount collected for the shortfall charges for Congestion Revenue Right (CRR) Owners from the amount received on all Real-Time Market (RTM) Invoices prior to prorating the payout to the RTM Invoice Recipients. It also adds language to allow ERCOT to resettle the Day-Ahead Market (DAM) in the event that a DAM Settlement error, which does not otherwise meet the Protocol requirements for resettlement, will impact ERCOT’s ability to achieve revenue neutrality. 03/17/2011 ERCOT No 9.2.5, 9.19 Approved
12/01/2011
NPRR339 Modifications to Heuristic Rules to Determine LMP at De-energized Electrical Bus and Treatment of CRR Offers at De-energized Settlement Points This Nodal Protocol Revision Request (NPRR): (a) Extends the heuristic rules to determine the Locational Marginal Price (LMP) at de-energized Electrical Buses; and (b) Changes the treatment of Congestion Revenue Right (CRR) offers when either the source or sink Settlement Point is de-energized in the DAM. 03/17/2011 ERCOT Yes 4.4.5, 4.5.1, 6.6.1 Approved
06/23/2011

All sections except for Section 4.4.5

07/26/2011

Section 4.4.5

NPRR341 Remove Ancillary Service Offers from SASM that do not Meet the Lead Time This Nodal Protocol Revision Request (NPRR) proposes to modify input data processing of Supplemental Ancillary Services Markets (SASMs) to remove offers that do not meet the lead time for each hour in the SASM study period. 03/23/2011 ERCOT Yes 6.4.8.2.2 Approved
06/23/2011
NPRR342 Notification and Actions to Address Outcomes Inconsistent With Efficient Operation of the ERCOT Market This Nodal Protocol Revision Request (NPRR) details the process for notifying Market Participants of market outcomes in the Day-Ahead Market (DAM) and Real-Time Market (RTM) that are inconsistent with the "efficient operation of the market" in the ERCOT Region, as that term is defined in paragraph (c)(2) of P.U.C. Subst. R. 25.503, Oversight of Wholesale Market Participants. This NPRR gives ERCOT discretion to implement corrective measures and advise Market Participants to discontinue practices that are inconsistent with efficient operation of the ERCOT-administered markets. This NPRR allows the ERCOT CEO to deem any NPRR designed to correct such activity as Urgent. It is assumed that prior to taking actions allowed by NPRR342, ERCOT shall consult with the Independent Market Monitor (IMM) and Public Utility Commission of Texas (PUCT) Staff regarding actions that are inconsistent with the efficient operation of ERCOT-administered markets. 03/30/2011 ERCOT Yes 4.1, 4.5.3, 6.1, 6.3 Approved
04/19/2011
NPRR343 CRR Bid and PTP Obligation Bid Criteria Change This NPRR would remove the ability to bid for CRRs in the CRR auction or bid for PTP Obligations in the DAM that exist entirely within a station. For the DAM, the implementation would be in two phases: (1) Initial implementation phase where ERCOT manually posts the disallowed Electrically Similar Settlement Points, and programmatically removes those transactions before running the DAM; and (2) Phase after system implementation for automated posting of Electrically Similar Settlement Points built from the 0600 DAM study (supporting Power System Simulator for Engineering (PSS/E) file postings in NPRR290, ERCOT Publication of DAM PSS/E Files) -- the DAM solution engine would not award those transactions inclusive of any outages received by 1000 -- and automated post-DAM disclosure of the final list of Electrically Similar Settlement Points applicable to the DAM solution. As such, the DAM language contains grey-boxed language to clarify how this would be handled in the two different phases. For CRRs, the implementation for disallowing PTP Obligation bids for Electrically Similar Settlement Points would be in two phases: (1) Initial implementation phase where ERCOT manually identifies and removes each Electrically Similar Settlement Point PTP Obligation bid submitted to the CRR Auction prior to the market optimizations; and (2) Final implementation phase where the CRR application detects and prevents Electrically Similar Settlement Point PTP Obligation bids when the CRR Auction bid portfolio is entered by the Market Participant.In both implementation phases, ERCOT shall post the Electrically Similar Settlement Points with the CRR Auction Market Notice. 03/29/2011 ERCOT Yes 2.1, 4.2.3, 4.4.6.1, 4.4.6.2, 4.4.9.5.1, 4.4.9.6.1, 4.5.3, 7.5.2.3, 7.5.3.2 Approved
05/01/2011

All sections except for Sections 4.2.3, 4.4.6.2, and 4.5.3

10/26/2011

Section 4.5.3(2)(i)

12/09/2011

All remaining sections

NPRR344 Define RMR Fuel Adder This Nodal Protocol Revision Request (NPRR) defines the term "fuel adder" as reported by Resource Entities when filing Reliability Must-Run (RMR) contracts. The NPRR also clarifies that the fuel adder will be true-up to reflect actual fuel costs incurred. 04/01/2011 ERCOT No 3.14.1.16, 6.6.6.2 Approved
08/01/2011
NPRR346 Removal of Redundant Posting Requirement Related to Electrical Bus Changes This Nodal Protocol Revision Request (NPRR) removes a redundant requirement for ERCOT to produce a report regarding Electrical Bus changes. 04/05/2011 ERCOT No 3.5.1 Approved
09/27/2011
NPRR347 Single Daily Settlement Invoice and Updates to Credit Calculations, including addition of a Minimum Collateral Exposure Component (formerly "Counter-Party Invoice and Single Daily Settlement Invoice") This Nodal Protocol Revision Request (NPRR) proposes invoicing activity at the Counter-Party level based on the net amount of each Counter-Party’s Qualified Scheduling Entitie’s (QSE’s) and Congestion Revenue Right (CRR) Account Holder’s charges and credits. This NPRR also combines the Day-Ahead Market (DAM) and the Real-Time Market (RTM) Invoices into a single daily Settlement Invoice for these activities. The Settlement Invoice posting on a Business Day includes Operating Days for which a DAM Statement or RTM Statement is posting on the same Business Day. The Settlement Invoice due date is three Bank Business Days after the Settlement Invoice posts. To align with the concept of a single daily Settlement Invoice, this NPRR also requires: (a) adaptation of the language for partial payments and late fees; (b) adaptation of the language for the Default Uplift Invoice; (c) changes to related credit formulas; and (d) automation of the minimum collateral calculation given an increase in the frequency of the calculation. Also, since with this change, Real-Time Settlement Statements will generally be invoiced between three to ten days sooner, this NPRR also proposes reducing the average daily transaction extrapolated multiplier from 40 days to 35 days based on the median reduction in exposure of approximately five days 04/06/2011 ERCOT Yes 2.1, 9.1.2, 9.3, 9.4, 9.4.1, 9.4.2, 9.4.4, 9.4.5, 9.5.6, 9.6, 9.7, 9.7.1, 9.7.2, 9.7.4, 9.8, 9.10, 9.12, 9.13, 9.14.2, 9.19, 9.19.1, 9.19.2.2, 16.11.4.1, 16.11.4.3, 16.11.4.4, 16.11.4.7 Approved
11/09/2012
NPRR348 Generation Resource Start-Up and Shut-Down process As part of this Nodal Protocol Revision Request (NPRR), Protocol language concerning the use of the "ONTEST" Resource Status during Start-Up and Shut-Down has been removed. Language has been added to address the Start-Up and Shut-Down processes. For Start-Up, language is added so that Resources are exempt from Base-Point Deviation Charges and Generation Resource Energy Deployment Performance (GREDP) metrics when the Resources average base-point value is below the average telemetered Low Sustainable Limit (LSL). The expectation is that when a Resource is receiving base-points below its LSL, the Resource is starting up/shutting down and not necessarily responding to Security Constrained Economic Dispatch (SCED) instructions. For Shut-Down, a new Resource Status is created called "SHUTDOWN". This status will be used by the Resource Limit Calculator (RLC) to calculate dispatch limits for SCED which ramp a Resource down to 0 MW according to the Resource’s provided ramp rate. Again, a Resource will be exempt from Base-Point Deviation Charges and GREDP metrics when the Resource’s average base-point is below the average telemetered LSL. 04/06/2011 ERCOT No 3.9.1, 6.4.2.4, 6.4.3, 6.5.7.2, 6.5.7.8, 6.6.5, 8.1.1.4.1 Approved
08/29/2012
NPRR350 Change to the Security Classification of the System Ancillary Service Capacity Monitor Dashboard This Nodal Protocol Revision Request (NPRR) proposes changing the posting category of items that make up the System Ancillary Service Capacity Monitor Dashboard from MIS Secure Area to MIS Public Area. 04/11/2011 Jackie Ashbaugh on behalf of the MIS User Group Yes 6.3.2, 6.5.7.5 Approved
08/24/2011
NPRR351 SCED Look-Ahead Step 1: Pricing: Calculate Non-Binding Prices and Basepoints for Initial Research into SCED Look-Ahead and allow Consumers to have a Forward Price Projection (formerly "Calculate and Post Projected Non-Binding LMPs for the Next 15 Minutes") Using the inputs specified in this Nodal Protocol Revision Request (NPRR), ERCOT will calculate prices and base points over the next hour, using an hour-long optimization instead of a five-minute optimization. These calculated prices and base points will initially be non-binding, although it is anticipated that these will become binding as Security-Constrained Economic Dispatch (SCED) Look-Ahead progresses in future phases. Not covered by this NPRR are the larger pieces of SCED Look-Ahead, like Real-Time commitment of generators and Load Resources (possibly replacing or eliminating the Non-Spinning Reserve (Non-Spin) product), Real-Time co-optimization of energy and Ancillary Services (including determining when the co-optimization occurs), whether to charge make-whole charges and to whom they should be charged to, and how these revisions will support the overall market design and Resource adequacy requirements. 04/13/2011 WMS Yes 6.3.2, 6.5.7.3 Approved
06/28/2012
NPRR352 Real-Time HSL Telemetry for WGRs This Nodal Protocol Revision Request (NPRR) changes the process by which Qualified Scheduling Entities (QSEs) determine the High Sustained Limits (HSLs) to telemeter for Wind-powered Generation Resources (WGRs). The requirement that QSEs set the HSL equal to output immediately following a release from curtailment is removed. Instead QSEs will be expected to use their best judgment to determine the output capability of the WGR with the expectation that the value will consider the net real power of the WGR, turbine availability, weather conditions, and whether the WGR output is being affected by compliance with a Security-Constrained Economic Dispatch (SCED) instruction. 04/13/2011 ERCOT Yes 6.5.5.2 Approved
06/01/2011
NPRR353 Administrative Changes for the May 1, 2011 Protocols This Administrative Nodal Protocol Revision Request (NPRR) corrects a reference within the Protocols due to Competitive Metering Guide and Retail Market Guide changes associated with RMGRR094, Adding the Competitive Metering Guide to the Retail Market Guide. 04/14/2011 ERCOT No 10.1 Approved
05/01/2011
NPRR354 Revisions to Non-Spin Performance Criteria Language and Provision for ICCP Telemetry of Non-Spin Deployment This Nodal Protocol Revision Request (NPRR) clarifies the performance criteria for Non-Spinning Reserve (Non-Spin) Service deployments, adds language for provision of a Non-Spin deployment flag to Qualified Scheduling Entities (QSEs) via Inter-Control Center Communications Protocol (ICCP), and adds a requirement for Extensible Markup Language (XML) notification to all QSEs when Non-Spin is deployed. Specifically, a clarification for the requirement that a Resource be "released to SCED" is added to Sections 6.5.7.6.2.3 and 8.1.1.4.3 to clarify the expectation of ERCOT that at 25 minutes after receipt of the deployment instruction, the Resource must be participating in Security-Constrained Economic Dispatch (SCED) at a net MW output at least equal to its Low Sustained Limit (LSL). The requirements for the three Resource types providing Non-Spin have been divided into separate paragraphs, one each for Load, On-Line and Off-Line Generation Resources. In addition, Generation Resources that are providing Non-Spin from Off-Line Generation Resources would be entitled to receive a compliance exemption for documented start-up loading failures. This language is adopted from the zonal Protocols and is included to recognize the difficulty inherent in unit start-up from a cold state for immediate deployment. 04/15/2011 WMS No 6.5.7.6.2.3, 8.1.1.4.3 Approved
06/28/2012
NPRR355 Adjust the Calculation of the Real-Time Settlement Point Price for a Load Zone This Nodal Protocol Revision Request (NPRR) removes the energy-weighting in the current calculation for the Real-Time Settlement Point Price (RTSPP) for a Load Zone. It also adds a new RTSPP for a Load Zone that is energy-weighted (Real-Time Settlement Point Price Energy-Weighted (RTSPPEW)) and adjusts the appropriate formulas that use these prices. This NPRR also corrects the Real-Time Price for the Energy Metered for each Resource meter at bus (RTRMPR b) in the event that the Energy at bus near Real-Time (EBNRT) is less than or equal to zero. This NPRR also includes several minor, non-substantive corrections. 04/27/2011 ERCOT No 6.6.1.2, 6.6.3.1, 6.6.3.2, 6.6.3.3, 6.6.3.5 Approved
02/24/2012
NPRR356 EEA Changes Related to Dispatch Instructions and BLTs This Nodal Protocol Revision Request (NPRR) changes the need to issue Dispatch Instructions to suspend any ongoing ERCOT-required generating unit or Resource performance testing and moves the requirement to inquire about the availability of Block Load Transfers (BLTs) from Energy Emergency Alert (EEA) Level 2A to EEA Level 2B. 05/04/2011 ERCOT No 6.5.9.4.1, 6.5.9.4.2 Approved
09/01/2011
NPRR357 Revisions to Collateral Requirements Concerning CRR Auctions (formerly "Multi-Month CRR Auction and Revisions to Collateral Requirements") The Nodal Protocol Revision Request (NPRR) proposes revisions to collateral requirements for Congestion Revenue Right (CRR) Auctions including a pre-CRR Auction screening process to determine the maximum potential exposure of each CRR Account Holder and a path-specific adder to be defined by an ERCOT Board-approved methodology. 05/04/2011 Luminant Yes 7.5, 7.5.1, 7.5.2, 7.5.5.3, 7.5.6, 7.5.6.1, 7.5.6.2, 7.5.6.3, 9.8, 16.11.4.5, Approved
09/13/2012
NPRR358 Clarification of Responsible Entity for Binding Obligations This Nodal Protocol Revision Request (NPRR) replaces the term "Generation Entity" with "Resource Entity," where appropriate, to provide clarity that for binding obligations the Resource Entity is designated as the Entity obligated under the Protocols. This NPRR also modifies the definition of Generation Entity. 05/04/2011 ERCOT No 2.1, 3.14.1.9, 3.14.1.10, 3.14.1.12, 3.14.1.16, 5.6.1, 8.1.1.2.1.4, 11.2.2, 11.5.2, 22E, 22H, Approved
10/01/2011
NPRR359 Monthly TDSP Load Report This Nodal Protocol Revision Request (NPRR) creates a new secure report to provide aggregate Load data for Transmission Service Providers (TSPs) and Distribution Service Providers (DSPs) in a monthly posting. 05/04/2011 Market Information System (MIS) User Group No 11.5.1.2 Approved
04/27/2012
NPRR360 Summary Report of HDL and LDL This Nodal Protocol Revision Request (NPRR) creates a new posting for the sum of High Dispatch Limit (HDL) and the sum of Low Dispatch Limit (LDL) and any Generation Resource instances of manual overrides of HDL or LDL to the Market Information System (MIS) Public Area after every Security-Constrained Economic Dispatch (SCED) run. This NPRR also adds the requirement to post any Qualified Scheduling Entity (QSE) instances of manual overrides of HDL and LDL for a Generation Resource to the MIS Certified Area after every SCED run. 05/04/2011 Jackie Ashbaugh on behalf of the MIS User Group No 6.5.7.1.13 Approved
06/28/2012
NPRR361 Real-Time Wind Power Production Data Transparency Current Protocols require that forecasted and actual wind power production be posted hourly. This Nodal Protocol Revision Request (NPRR) is twofold: Adds a new public report to be posted every five minutes that provides, on both a system-wide and regional basis, the five-minute actual wind power production for a rolling historical 60-minute period. (Note that this includes the current Real-Time value along with a rolling 60-minute history of five-minute actual values.) Changes the existing hourly report for Actual and Forecast Regional Wind Report to provide the following information on both a system-wide and regional basis: Aggregate Wind-powered Generation Resource (WGR) Power Output Aggregate Short-term Wind Power Forecast (STWPF) Aggregate Wind-powered Generation Resource Production Potential (WGRPP) Aggregate Current Operating Plan (COP) High Sustained Limits (HSLs) for On-Line WGRs These reports will compliment the new Public Aggregated Wind Dashboard proposed in System Change Request (SCR) 765, Public Aggregated Wind Dashboard. 05/04/2011 Jackie Ashbaugh on behalf of the Market Information System (MIS) User Group No 4.2.2 Approved
04/27/2012
NPRR362 Changes to PRC Calculation This Nodal Protocol Revision Request (NPRR) aligns the Protocols with the current systems. The proposed changes properly reflect the current Responsive Reserve (RRS) which is supplied from Load Resources into the PRC calculation. This NPRR also deletes the method for calculating the PRC from Energy Emergency Alert (EEA) Levels 1 and 2. 05/04/2011 ERCOT No 6.5.7.5, 6.5.9.4.2 Approved
09/01/2011
NPRR364 Clarify Active and Inactive SCED Constraint Reporting This Nodal Protocol Revision Request (NPRR) clarifies the reporting requirements for Security-Constrained Economic Dispatch (SCED) constraints and aligns the Protocols with current practices. 05/04/2011 ERCOT No 6.5.7.1.11 Approved
11/01/2011
NPRR365 Change in Resource Outage Approvals from Eight to 45 Days (formerly "Change in Resource Outage Approvals from Eight to 90 Days") Consistent with Recommendation 6B of the March 15, 2011, Report of the Rotating Blackout Operations Task Force of the ERCOT Board, this Nodal Protocol Revision Request (NPRR) revises the deadline for ERCOT approval of Resource Outages from an eight-day notice to a 45-day notice while aligning the new Resource Outage timelines to match those of Transmission Outages. 05/04/2011 ERCOT Yes 3.1.1, 3.1.4.4, 3.1.6, 3.1.6.4, 3.1.6.5, 3.1.6.6, 3.1.6.8, 3.1.6.9, 3.1.6.10 Approved
11/02/2012
NPRR369 Black Start Service Requirement Revisions This NPRR allows ERCOT to conduct unannounced testing of Black Start Resources and further proposes language changes that would allow a Resource Entity representing a contracted Black Start Resource to request that an alternate Generation Resource substitute in place of the Black Start Resource if the alternate Generation Resource meets testing and verification under established qualification criteria to ensure Black Start Service. 05/18/2011 ERCOT Yes 3.14.2, 4.3, 6.6.8.1, 8.1.1.2.1.5, 22D, 22I Approved
09/01/2011
NPRR370 Supplementary Ancillary Services Market Modifications This Nodal Protocol Revision Request (NPRR) corrects the Supplemental Ancillary Services Market (SASM) to eliminate the notice periods when ERCOT needs to strike a SASM for Ancillary Services that are undeliverable or the result of a Qualified Scheduling Entity’s (QSE’s) failure to provide the service. 05/26/2011 Morgan Stanley No 6.4.8.2 Approved
11/01/2011
NPRR372 Administrative Changes for the July 1, 2011 Protocols to Update Audit References This Administrative Nodal Protocol Revision Request (NPRR) updates references within Section 1.4.4 and Section 8.2 from SAS 70 to the new Statement on Standards for Attestation Engagements 16 (SSAE 16). 06/01/2011 ERCOT No 1.4.4, 8.2 Approved
07/01/2011
NPRR374 Modification of SCR Process and Urgency Requirements This Nodal Protocol Revision Request (NPRR) consolidates the System Change Request (SCR) process and NPRR process so that the governing subcommittee for both SCRs and NPRRs is the Protocol Revision Subcommittee (PRS). This NPRR also modifies the requirements for Urgency. 06/06/2011 ERCOT No 21 Approved
10/01/2011
NPRR375 Extend the Reporting Horizon for CDR Inputs This Nodal Protocol Revision Request (NPRR) extends existing reporting requirements for Mothballed Generation Resource return-to-service probabilities, Generation Resources with associated Load, and Switchable Generation Resources, from five to ten years. 06/06/2011 ERCOT No 3.14.1.9, 10.3.2.4, 16.5.4 Approved
10/01/2011
NPRR376 CRR Volume Limitation Enhancements This Nodal Protocol Revision Request (NPRR) establishes that Congestion Revenue Right (CRR) Account Holders are not included in the CRR transaction volume limitation process if they do not own open CRR positions or have credit allocated to the CRR Auction. This NPRR also expands ERCOT’s requirement to notify CRR Account Holders about issues pertaining to the transaction limitation. 06/07/2011 DC Energy Yes 2.1, 7.5.2, 7.5.2.1, 7.5.2.3, 7.5.3.2, 7.5.4 Approved
09/06/2011
NPRR377 Alternate Inputs to Base Point Deviation Charge This Nodal Protocol Revision Request (NPRR) will align the Adjusted Aggregated Base Points (AABP) formula with the inputs to the Generation Resource Energy Deployment Performance (GREDP) measure. The current formula for AABP inaccurately assesses Base Point Deviation charges for under and over generation when shortened Security-Constrained Economic Dispatch (SCED) intervals occur. Additionally, this NPRR includes bill determinants to track the over and under generated volumes and correct language for bill determinants P1 and P2. 06/07/2011 ERCOT No 6.6.5, 6.6.5.1.1, 6.6.5.1.2, 6.6.5.2, 6.6.5.3, Approved
02/14/2013
NPRR379 EILS Dispatch Sequence and Performance Criteria Upgrades This Nodal Protocol Revision Request (NPRR) improves the operational value of Emergency Interruptible Load Service (EILS); and strengthens and clarifies a number of performance criteria for EILS by: Providing ERCOT Operators with enhanced flexibility for managing grid conditions during an Energy Emergency Alert (EEA) by requiring dispatch of EILS prior to or in conjunction with dispatch of Load Resources providing Responsive Reserve (RRS) in EEA Level 2; Improving dispatch of EILS by expanding the Dispatch Instruction to include an XML message in addition to the current Verbal Dispatch Instruction (VDI). This would make EILS dispatch consistent with Load Resource dispatch and would remove any potential ambiguity about dispatch status; Strengthening the 10-minute deployment requirement for EILS by establishing more specific metrics for both Qualified Scheduling Entities (QSEs) and EILS Load-level performance during the first interval of the deployment event, and affirming that a failure to meet the 10-minute requirement constitutes a violation of the Protocols; Establishing an availability "settlement weighting factor" that places higher emphasis on an EILS Load’s event performance over availability in an EILS Contract Period where EILS is deployed. For settlement purposes, availability would be weighted at 25% in an EILS Contract Period in which EILS was deployed but not exhausted. Availability would be weighted at between 0% and 25% in a Contract Period in which EILS was exhausted, via a sliding scale based on how early in the Contract Period EILS was exhausted; Allowing an EILS Load to be reassigned to a default baseline type if it was assigned to the alternate baseline prior to an EILS Contract Period due to a lack of sufficient historical meter data; Changing the event performance criteria for EILS Loads assigned to the alternate baseline to parallel the event performance calculation used for EILS Loads on a default baseline; Establishing conditions under which an EILS Load that falls short of an event performance factor of 0.95, yet demonstrably performs in an EILS deployment event, may avoid a six-month suspension. In such cases the payment to the QSE will be based on the actual event performance factor; these provisions apply to suspensions only; Simplifying availability requirements and settlement calculations for EILS by combining an EILS Load’s Time Period availability factors into a unified Load-weighted and time-weighted availability factor for a Contract Period; Adding clarity to QSE portfolio performance criteria; Establishing a list of QSE-specific documents that ERCOT shall be required to post to the Market Information System (MIS) Certified Area; and Making additional clarifying changes to EILS. 06/07/2011 ERCOT No 2.1, 3.14.3, 6.5.9.4.2, 6.6.11.1, 8.1.3.1, 8.1.3.2, 8.1.3.3, 8.1.3.3.1 Approved
10/01/2011

All sections except for Section 3.14.3(4) and Section 6.5.9.4.2(2)(a)(iii)

07/01/2012

All remaining sections

NPRR380 Minor Changes to Default Uplift Invoice This Nodal Protocol Revision Request (NPRR) provides minor corrective and clarifying changes to the allocation methodology used for the Default Uplift Invoice. 06/08/2011 ERCOT No 9.19.1 Approved
10/01/2011
NPRR382 Verbal RUC Committed or Decommitted Resources Report This Nodal Protocol Revision Request (NPRR) creates two new reports on the Market Information System (MIS) Secure Area for verbal Reliability Unit Commitment (RUC) commitments/decommitments, one following the Day-Ahead Reliability Unit Commitment (DRUC) and one following the Hourly Reliability Unit Commitment (HRUC) to stay consistent with the current RUC data delivery process. 06/08/2011 Jackie Ashbaugh on behalf of the MIS User Group No 5.3 Approved
08/30/2012
NPRR383 Unconfirmed Trades Reports This Nodal Protocol Revision Request (NPRR) creates a new report for unconfirmed trades on the Market Information System (MIS) Certified Area that will provide timely information regarding the trades that have not yet been confirmed for the upcoming hour and all remaining hours of the Reliability Unit Commitment (RUC) Study Period so that Market Participants may make adjustments as necessary to conduct business. 06/08/2011 Jackie Ashbaugh on behalf of the MIS User Group No 4.4.12, 4.4.2.2, 4.4.7.3.2 Approved
08/30/2012
NPRR384 Revisions to Support SCR766 , Load Zone and Hub LMPs Distributed by ICCP (formerly "Load Zone Price Distributed by ICCP") This Nodal Protocol Revision Request (NPRR) clarifies language that supports system changes proposed in System Change Request (SCR) 766, Load Zone and Hub LMPs Distributed by ICCP (formerly "Load Zone Price Distributed by ICCP"). SCR766 should provide quicker distribution of the Load Zone prices and the Hub prices that are available with each Security-Constrained Economic Dispatch (SCED) execution. 06/08/2011 ERCOT No 6.3.2 Approved
10/27/2011
NPRR385 Negative Price Floor (formerly "Security Violation Analysis and Reporting and Negative Price Floor") This Nodal Protocol Revision Request (NPRR) adds an administrative Settlement Point Price floor of negative $251/MWh. 06/14/2011 Luminant Energy Company LLC No 4.6.1.1, 6.1.1, 6.6.1.1, 6.6.3.1 Approved
09/25/2013
NPRR387 Hydro RRS Deployment Under Frequency Relay Set Point This Nodal Protocol Revision Request (NPRR) clarifies that for hydro Generation Resources operating in the synchronous condenser fast-response mode to provide Responsive Reserve (RRS), the initiation setting of the automatic under frequency relay setting shall not be lower than 59.80 Hz. It also includes language to address the instances when a hydro Generation Resource operating in synchronous condenser fast-response mode is triggered by an under frequency relay device without a corresponding RRS deployment by ERCOT. Additionally, this NPRR is a companion to Nodal Operating Guide Revision Request (NOGRR) 068, Hydro-Responsive Reserve, and has been prepared in coordination with ERCOT Staff. Changes to revise the use of "hydro-powered Resource" to "hydro Generation Resource" and revisions to Section 3.8 references are also proposed in this NPRR. 06/15/2011 LCRA Yes 3.8, 3.8.4, 3.10.7.2, 3.10.7.5.2, 3.18, 4.4.9.2.2, 6.5.9.2, 8.1.1.4.2 Approved
08/01/2011
NPRR388 Clarification of Quick Start Generation Resource Performance Criteria This Nodal Protocol Revision Request (NPRR) clarifies the requirements regarding the performance criteria of a Quick Start Generation Resource (QSGR) during a Security-Constrained Economic Dispatch (SCED) deployment. 07/06/2011 Luminant Energy Yes 8.1.1.2 Approved
09/01/2011
NPRR389 Modification of Voltage Support Requirements to Address Existing Non-Exempt WGRs This Nodal Protocol Revision Request (NPRR) clearly defines the Reactive Power capability requirements for Wind-powered Generation Resources (WGRs) that commenced operation on or after February 17, 2004, and have a signed Standard Generation Interconnection Agreement (SGIA) on or before December 1, 2009 (Existing Non-Exempt WGRs). These Existing Non-Exempt WGRs will fall into two categories: (1) Those whose current design allows them to meet the Reactive Power capability requirement described in paragraph (3) of Section 3.15. In these cases, the Reactive Power profile is depicted graphically as a rectangle. (2) Those whose current design does not allow them to meet the Reactive Power capability requirement described in paragraph (3) of Section 3.15. These WGRs must conduct engineering studies using the Summer/Fall 2010 Voltage Profiles to determine their actual Reactive Power capability and must, at a minimum, provide Reactive Power proportional to the real power output (a Reactive Power profile depicted graphically as a triangle). This NPRR further requires that all new Generation Resources shall have an engineering study, or demonstrate through performance testing, to show compliance with the Reactive Power capability requirements of paragraph (3) of Section 3.15 before beginning commercial operations. This NPRR also modifies the definition of "Automatic Voltage Regulator (AVR)" to better address the practical differences in Resource technology in providing this capability. 07/06/2011 ERCOT No 2.1, 3.15 Approved
11/01/2011
NPRR390 Clarification of the Applicability of the Use of the Refund Option This Nodal Protocol Revision Request (NPRR) clarifies the ability to request refund option Pre-Assigned Congestion Revenue Rights (PCRRs) across high voltage Direct Current Ties (DC Ties). 07/06/2011 ERCOT Yes 7.4.2 Approved
09/01/2011
NPRR391 Shortening RTM Settlement and Payment Timeline and Eliminate ACH as a Mode of Payment This Nodal Protocol Revision Request (NPRR) shortens the posting timeline for the Real-Time Initial Statement by one Business Day, and shortens cash clearing for the Settlement Invoices in which it will be included by one Bank Business Day. This NPRR also eliminates the option of making payments using Automated Clearing House (ACH) funds. 07/05/2011 ERCOT No 9.5.4, 9.7.1, 9.7.4, 9.9.1`, 9.11.1, 9.19.2.1 Approved
12/01/2011

All sections except for Section 9.7.1

11/09/2012

Section 9.7.1

NPRR392 Credit Review During CRR Auction This Nodal Protocol Revision Request (NPRR) provides for a credit review on preliminary CRR Auction results before CRR Auction results are finalized and posted to ensure that post auction collateral requirements under Section 16, Registration and Qualification of Market Participants, for the proposed CRR awards are within a Counter-Party’s Available Credit Limit (ACL). If a Counter-Party does not have or provide the required Financial Security, this NPRR provides for voiding that Entity’s bids and offers and rerunning the CRR Auction without that Entity’s bids and offers. 07/14/2011 ERCOT Yes 7.5.5.3 Approved
09/01/2011
NPRR393 SCED Constraint Management Transparency This Nodal Protocol Revision Request (NPRR) creates a reporting requirement to provide transparency into Security-Constrained Economic Dispatch (SCED) constraint management decisions. 07/14/2011 Bill Barnes on behaf of J Aron and Company No 6.5.7.1.11 Approved
10/07/2013
NPRR394 Outage Reporting This Nodal Protocol Revision Request (NPRR) clarifies that material derates for Resources are greater than 10MW. 07/14/2011 Edison Mission No 2.1, 3.1.4.8 Approved
05/01/2012
NPRR395 CRR Auction Offer Award Disclosure This Nodal Protocol Revision Request (NPRR) adds a requirement for ERCOT to post Congestion Revenue Right (CRR) Auction offer awards following each CRR Auction in the exact fashion CRR Auction bid awards are currently posted on the Market Information System (MIS) Public Area. 07/15/2011 DC Energy No 7.5.3.1 Approved
04/27/2012
NPRR396 Reduce Standard O&M Costs This Nodal Protocol Revision Request (NPRR) reduces the standard Operations and Maintenance (O&M) costs permitted to be used in lieu of actual, verifiable O&M costs by NPRR225, Standard Cost Option in Verifiable Costs, which was approved by the ERCOT Board in June 2010. 07/19/2011 City of Eastland Yes 5.6.1 Approved
10/01/2011
NPRR397 Balance of the Day Ancillary Service Market This Nodal Protocol Revision Request (NPRR) allows the Supplemental Ancillary Services Market (SASM) to be operated as a balance of the day market for Ancillary Services. 08/01/2011 Morgan Stanley No 4.4.7.4, 6.4.8.2, 6.7.2, 6.7.3 Approved
03/04/2013
NPRR398 Changes to Resource Category Minimum-Energy Generic Heat Rates This Nodal Protocol Revision Request (NPRR) changes the Resource Category Minimum-Energy Generic Heat Rates for several fuel type Resource categories as described below. 08/03/2011 ERCOT No 4.4.9.2.3 Approved
01/01/2012
NPRR399 Updates to Protocol Sections Related to Settlements and Billing This Nodal Protocol Revision Request (NPRR) includes updates to miscellaneous, non-substantive corrections to various Protocol sections related to Settlements and billing. Revisions include corrections to Protocol references and variable clarifications. 08/03/2011 ERCOT No 4.4.9.3.3, 4.6.2.3.2, 4.6.3, 5.6.1, 6.6.3.4, 6.6.5, 6.6.6.3, 6.6.9, 6.7.3 , 7.5.6.1, 7.5.6.2, 7.5.6.3, 9.5.3, Real-Time Market Settlement Charge Types 9.5.6, RTM Resettlement Statement Approved
01/01/2012
NPRR400 Eliminate Unsecured Credit for CRR Auctions and for Future Credit Exposure and Eliminate Netting of FCE with CCE This Nodal Protocol Revision Request (NPRR) requires that a) the Future Credit Exposure (FCE) component of the collateral calculation and b) the CRR Auction credit limit be collateralized with cash, letter of credit or a surety bond. Unsecured credit and unsecured credit through guarantees will no longer be available for this. This NPRR also eliminates netting of FCE with Current Credit Exposure (CCE) for all Counter-Parties. To accomplish the above ERCOT considered the approaches listed below: (1) Establish separate collateral "pools" for Qualified Scheduling Entity (QSE) and CRR activities (similar to zonal); and (2) Continue with a combined collateral pool, but providing sublimits for activity that must be secured. ERCOT has used the second approach in the NPRR as it provides the most flexibility and ability to maximize use of collateral. The NPRR addresses three areas: (1) Splits the Total Potential Exposure (TPE) into two portions: (a) Total Potiential Exposure Secured (TPES) is the TPE that must be secured with cash, letter of credit or surety bond; and (b) Total Potential Exposure Any (TPEA) is the TPE that may be secured with any form of collateral. TPEA will include all exposure not included in TPES. (2) Defines subcomponents of Financial Security and establishes additional requirements to maintain adequate secured collateral: (a) Secured Collateral (cash, letter of credit or surety bond) (b) Remainder Collateral (Financial Security minus TPES minus Net Positive Exposure of approved CRR Bilateral Trades) (3) Redefines Available Credit Limit(ACL) and provides for separate calculations of ACL for the Day Ahead (DAM) (ACLD) and CRR (ACLC) markets. ACL for CRRs must be collateralized with Secured Collateral. 08/03/2011 ERCOT Yes 16.11, 16.11.4.1, 16.11.4.3, 16.11.4.6, 16.11.4.6.1, 16.11.4.6.2, 16.11.5, Approved
11/09/2012
NPRR401 Clarification of Timing for a Generation Resource to be Considered Self-Committed This Nodal Protocol Revision Request (NPRR) removes language that broadly allows Qualified Scheduling Entities (QSEs) to self-commit between the time RUC executes and the time that the QSE receives the RUC instruction, but does not speak to the Settlement treatment and can result in conflicting commitment information. This NPRR clarifies the timing by which a QSE may self-commit a Generation Resource, specifically the timing of the self-commitment required in order for the Generation Resource to be considered self-committed by a RUC process and in Settlement of that same RUC process. 08/03/2011 ERCOT No 5.3, 5.5.2, 5.6.2 Approved
01/01/2012
NPRR402 Clarification of Pre-DAM RUC Instruction Sequence This Nodal Protocol Revision Request (NPRR) clarifies the treatment of Reliability Unit Commitment (RUC) instructions for instances in which ERCOT issues instructions prior to the closing of the Day-Ahead Market (DAM) submission window and to clarify how a Qualified Scheduling Entity (QSE) may self-commit in such a scenario. 08/08/2011 ERCOT No 2.1, 2.2, 5.1 Approved
05/01/2012
NPRR403 Revised FASD Calculation for TX SET Version 4.0 Release This Nodal Protocol Revision Request (NPRR) revises the First Available Switch Date (FASD) calculation to include the availability of same day switches on Saturday. 08/15/2011 Market Coordination Team (MCT) No 15.1.1 Approved
06/11/2012
NPRR404 Clarification of Form of Notice of Suspension of Operations This Nodal Protocol Revision Request (NPRR) removes an obsolete reference to excess energy payment options from the form of Notification of Suspension of Operations in Section 22, Attachment E. 08/25/2011 ERCOT No 22E Approved
01/01/2012
NPRR405 Clarification of DC Tie Load into Operational Systems and Processes This Nodal Protocol Revision Request (NPRR) clarifies that Direct Current Tie (DC Tie) exports are to be treated as Load. 08/29/2011 EDF Trading North America, LLC No 4.4.4, 5.1, 5.4, 5.5.2, 6.3.2 Approved
05/01/2012
NPRR406 Clarification of the Timeline for Calculating the Value of X at Minimum Energy Level This Nodal Protocol Revision Request (NPRR) clarifies that the effective date for the value of X as applied to fuel at the minimum energy level is described in the Verifiable Cost Manual. This clarification is consistent with paragraph (a) of Section 5.6.1.1, Verifiable Startup Costs, which also contains language that references the Verifiable Cost Manual for the effective date of the value of X. 09/02/2011 ERCOT No 5.6.1.2 Approved
01/01/2012
NPRR407 Credit Monitoring Posting Requirements (formerly "Credit Monitoring Credit Parameters Posting Requirements") This Nodal Protocol Revision Request (NPRR) adds language to require posting of current and previously effective credit parameters to the Market Information System (MIS) Certified Area. 09/05/2011 Tenaska No 4.4.10, 16.11.4.7 Approved
02/14/2013

Section 4.4.10

12/11/2013

All remaining sections

NPRR408 Clarification of ERCOT Authority to Deny Energization of Non-Compliant Generators This Nodal Protocol Revision Request (NPRR) clarifies ERCOT’s authority to deny energization of a new or materially changed All-Inclusive Generation Resource if ERCOT determines the Resource Entity cannot demonstrate that the Resource would be able to comply with technical standards in the Protocols, the Planning Guide, the Nodal Operating Guides, and Other Binding Documents. 09/06/2011 ERCOT No 1.6.5, 16.5 Approved
03/01/2012
NPRR411 Administrative Changes for the October 1, 2011 Protocols This Administrative Nodal Protocol Revision Request (NPRR) updates the Protocols to reflect the name change of Texas Regional Entity (TRE) to Texas Reliability Entity (Texas RE). 09/08/2011 ERCOT No 8.1.1.3, 8.1.1.4., 8.1.1.4.2, 8.1.1.4.3, 21.1, 21.2, 21.3, 21.4.3, 21.4.4, 21.4.10.1, 21.4.10.2, 21.4.10.3, 21.7, 21.8.3, 21.8.4, 21.8.11.1, 21.8.11.2, 21.8.11.3, Approved
10/01/2011
NPRR412 Quick Start Generation Resource Compliance Metric Adjustments This Nodal Protocol Revision Request (NPRR) clarifies the requirements regarding the performance criteria of a Quick Start Generation Resource (QSGR). 09/12/2011 South Texas Electric Coop., Inc. No 8.1.1.2 Approved
06/01/2012
NPRR413 Oklaunion Exemption Calculation Verification This Nodal Protocol Revision Request (NPRR) adds details to Section 4.4.4.2 to describe the ERCOT adjustment process when Oklaunion-exempt Load exceeds the actual net output of the Oklaunion Resource and adds the requirement to designate a non-exempt Qualified Scheduling Entity (QSE). 09/12/2011 ERCOT No 4.4.4.2 Approved
02/01/2012
NPRR414 UFE Calculation Clarifications This Nodal Protocol Revision Request (NPRR) clarifies language in the Unaccounted for Energy (UFE) calculation. 09/12/2011 ERCOT No 2.1, 11.4.6, 11.4.6.1 Approved
02/01/2012
NPRR415 Inadvertent Interchange and Inadvertent Energy Clarification This Nodal Protocol Revision Request (NPRR) modifies language in Section 6.5.4 related to inadvertent energy. 09/21/2011 Frank Owens on behalf of Nodal Protocol and Guides Resolution Task Force (NPGRTF) No 6.5.4 Approved
02/01/2012
NPRR416 Creation of the RUC Resource Buyback Provision (formerly "Removal of the RUC Clawback Charge for Resources Other than RMR Units") This Nodal Protocol Revision Request (NPRR) adds a buyback provision for Resources committed by ERCOT’s Reliability Unit Commitment (RUC) process that allows all RUC Clawback Charges associated with the RUC commitment to be waived and RUC Make-Whole Payments to be forfeited. 09/20/2011 Exelon, Calpine No 2.1, 3.9.1, 5.5.2, 5.6.2, 5.7.2, 5.7.6, 6.4.6 Approved
01/01/2013

Sections 5.5.2(11) and 5.5.2(12)

01/07/2014

All remaining sections

NPRR417 TDSP Submittal of Consumption and Demand Values for AMS ESI IDs This Nodal Protocol Revision Request (NPRR) documents an existing market process where the Transmission and/or Distribution Service Providers (TDSPs) are providing consumption and demand data for Advanced Metering System (AMS) Electric Service Identifiers (ESI IDs) so the data can be utilized in the implementation of NPRR251, Synchronization of PRR845, Definition for IDR Meters and Optional Removal of IDR Meters at a Premise Where an Advanced Meter Can be Provisioned. 10/04/2011 ERCOT No 10.3.3.3 Approved
02/01/2012
NPRR419 Revise Real-Time Energy Imbalance and RMR Adjustment Charge This Nodal Protocol Revision Request (NPRR): (1) revises the Real-Time Energy Imbalance equations to determine intermediate data elements for the Resource’s share of the generation site total revenues; (2) revises the Resource Node, Load Zone, and Hub Real-Time Energy Imbalance equations to determine volumetric imbalance for each Qualified Scheduling Entity (QSE) and Settlement Point; and (3) revises the Reliability Must-Run (RMR) Adjustment Charge to charge the QSE for the revenues paid in accordance with the energy imbalance calculation. 10/05/2011 ERCOT No 6.6.3.1, 6.6.3.2, 6.6.3.3, 6.6.6.3 Approved
04/12/2016
NPRR421 Clarification of RMR Notifications This Nodal Protocol Revision Request (NPRR) updates the Protocols to ensure that ERCOT issues Market Notices to Market Participants contemporaneously with ERCOT’s activities with Reliability Must-Run (RMR) Unit and Must-Run Alternative (MRA) Resource owners. 10/24/2011 Edison Mission Marketing & Trading No 2.1, 3.14.1, 3.14.1.1, 3.14.1.2, 3.14.1.3, 3.14.1.5, 3.14.1.6, 3.14.1.7, 3.14.1.8, 3.14.1.9, 22F Approved
05/01/2012
NPRR422 Public DAM Shift Factors This Nodal Protocol Revision Request (NPRR) creates a new report to provide Day-Ahead Shift Factors on the Market Information System (MIS) Public Area. 10/27/2011 Jackie Ashbaugh on behalf of the MIS User Group No 4.5.3 Approved
08/30/2012
NPRR423 Add Voltage Support Requirement for IRRs and Allow SCADA Control of Static VAr Devices if Approved by ERCOT (formerly "Add Voltage Support Requirement for IRRs and Allow Manual Control of Static VAr Devices if Approved by ERCOT") This Nodal Protocol Revision Request (NPRR) includes Intermittent Renewable Resources (IRRs) in the voltage requirement and clarifies the reactive requirement to be the same as Wind-powered Generation Resources (WGRs). This NPRR also proposes that switchable static Volt-Ampere reactive (VAr) devices can be Supervisory Control and Data Acquisition (SCADA) controlled if approved by ERCOT. 11/02/2011 ERCOT No 3.15 Approved
03/01/2012
NPRR424 Reactive Capability Testing Requirements for IRRs This Nodal Protocol Revision Request (NPRR) defines the reactive capability testing requirement for Intermittent Renewable Resources (IRRs). 11/02/2011 ERCOT No 8.1.1.2.1.4 Approved
05/01/2012
NPRR425 Creation of a WGR Group for GREDP and Base Point Deviation Evaluation and Mixing Turbine Types Within a WGR (formerly "Creation of a WGR Group for GREDP and Base Point Deviation Evaluation") This Nodal Protocol Revision Request (NPRR) provides that Wind-powered Generation Resources (WGRs) meeting registration requirements will be evaluated for Generation Resource Energy Deployment Performance (GREDP) and Base Point Deviation as groups of WGRs rather than individual WGRs. This NPRR also permits multiple wind turbine models or sizes to be combined in a single WGR if certain criteria are met. 11/01/2011 ERCOT No 2.1, 3.10.7.2, 6.6.5.2, 8.1.1.4.1 Approved
12/01/2012

Section 6.6.5.2

02/04/2014

All remaining sections

NPRR426 Standing Non-Spin Deployment in the Operating Hour for Generation Resources Providing On-Line Non-Spin This Nodal Protocol Revision Request (NPRR) requires Qualified Scheduling Entity (QSE) action that routinely releases certain On-Line Non-Spinning Reserve (Non-Spin) energy to Security-Constrained Economic Dispatch (SCED) without the need for ERCOT to issue a Non-Spin deployment instruction. The changes in Section 6.5.7.6.2.3 do not invalidate any other existing requirements contained in this section. Those Generation Resources not subject to the provisions contained in paragraph (5) of Section 6.5.7.6.2.3 must respond to any Non-Spin deployment or recall instruction issued by ERCOT Operators in accordance with the Technical Advisory Committee (TAC)-approved Non-Spinning Reserve Service Deployment and Recall Procedure. There will not be any validation rules to verify the requirements added by this NPRR. The onus is on all QSEs to make the submission/telemetry changes needed to implement these new requirements. 11/09/2011 ERCOT Yes 6.5.7.6.2.3 Approved
01/05/2012
NPRR427 Energy Offer Curve Requirements for Generation Resources Assigned Reg-Up and RRS This NPRR adds a requirement for the Energy Offer Curve to be set at the System-Wide Offer Cap (SWCAP) for the capacity reserved for Responsive Reserve (RRS) Service Ancillary Service Resource Responsibility and Regulation Up (Reg-Up) Ancillary Service Resource Responsibility because of the Day-Ahead Market (DAM) or Supplemental Ancillary Services Market (SASM) Ancillary Service awards, or Self-Arranged Ancillary Service Quantity. If RRS and/or Reg-Up Ancillary Service Resource Responsibility is reassigned to a Generation Resource during the Adjustment Period in accordance with Protocol Section 6.4.6, QSE-Requested Decommitment of Resources and Changes to Ancillary Service Resource Responsibility of Resources, it is expected that the Qualified Scheduling Entity (QSE) shall submit an Energy Offer Curve that meets the requirements of Section 6.4.3.2. Energy Offer Curve for Responsive Reserve and Regulation Up Capacity, for the Generation Resource newly assigned Ancillary Service Resource Responsibility for RRS and/or Reg-Up prior to the end of the Adjustment Period. If the Ancillary Resource Responsibility for RRS and/or Reg-Up is reassigned in accordance with Protocol Section 6.4.6 from a Generation Resource that experiences a Forced Outage, Derate, or Startup Loading Failure during the Operating Period, it is expected that the QSE shall submit an Energy Offer Curve that meets the requirements of Section 6.4.3.2 as soon as reasonably practicable after the event. QSE updates to an Energy Offer Curve entered at the end of the Adjustment Period become effective in ERCOT systems at the next Operating Period. Therefore, if RRS or Reg-Up Ancillary Service Resource Responsibility is moved from one Generation Resource to another in the QSE's portfolio during an Operating Hour, any change to the Energy Offer Curve will be effective in the next Operating Period. There will not be any validation rule put in to verify the rules added by the new Protocol language. The onus is on QSE’s to make the submission/telemetry changes needed to implement the new Protocol language. 11/09/2011 ERCOT Yes 6.4.3.2 Approved
01/05/2012
NPRR428 Energy Offer Curve Requirements for Generation Resources Assigned Non-Spin Responsibility This Nodal Protocol Revision Request (NPRR) adds a requirement for the Energy Offer Curve to be at or above $120 for On-Line Non-Spinning Reserve (Non-Spin) capacity and at or above $180 for Off-Line Non-Spin capacity. If Non-Spin Ancillary Service Resource Responsibility is reassigned to a Generation Resource during the Adjustment Period in accordance with Section 6.4.6, QSE-Requested Decommitment of Resources and Changes to Ancillary Service Resource Responsibility of Resources, the Qualified Scheduling Entity (QSE) shall submit an Energy Offer Curve that meets the requirements of Section 6.4.3.1 for the Generation Resource newly assigned Ancillary Service Resource Responsibility for Non-Spin prior to the end of the Adjustment Period. If the Ancillary Service Resource Responsibility for Non-Spin is reassigned in accordance with Section 6.4.6 from a Generation Resource that experiences a Forced Outage, Derate, or Startup Loading Failure during the Operating Period, the QSE shall submit an Energy Offer Curve that meets the requirements of Section 6.4.3.1 as soon as reasonably practicable after the event. QSE updates to an Energy Offer Curve entered at the end of the Adjustment Period become effective in ERCOT systems at the next Operating Period. Therefore, if Non-Spin is moved from one Generation Resource to another in the QSE's portfolio during an Operating Hour, any change to the Energy Offer Curve will be effective in the next Operating Period. There will not be any validation rules to verify the requirements added by this NPRR. The onus is on all QSEs to make the submission/telemetry changes needed to implement these new requirements. 11/09/2011 ERCOT Yes 6.4.3.1 Approved
01/05/2012
NPRR430 Corrections Related to NPRR357, Revisions to Collateral Requirements Concerning CRR Auctions, and Clarification to Collateral Requirements This Nodal Protocol Revision Request (NPRR) clarifies the collateral requirements for Congestion Revenue Right (CRR) Account Holders and Counter-Parties who participate in the CRR market. The change will correct certain formula issues in the ERCOT Board-approved NPRR357, Revisions to Collateral Requirements Concerning CRR Auctions, that result in the overcollateralization of CRR Account Holders and Counter-Parties. Further, the specific equations are removed as they more appropriately belong in a white paper that has been created by the ERCOT CRR team in parallel with this NPRR in the same manner as was done for Day-Ahead Market (DAM) credit. With this correction to the Protocols, the CRR credit screening will be consistent with the treatment of the DAM credit exposure equations. 11/28/2011 ERCOT No 7.5.5.3 Approved
09/13/2012
NPRR431 Board Priority Revision Requests This Nodal Protocol Revision Request (NPRR) proposes a unique status for Revision Requests to designate ERCOT Board priority action items -- Board Priority Revision Request. A Board Priority Revision Request would be the result of a vote from the ERCOT Board to direct ERCOT staff to develop a Revision Request that would address a specific issue raised at the ERCOT Board, to officially designate that NPRR as a Board Priority NPRR that will be processed similar to an NPRR with Urgent status, and to request that a resolution of the issue be worked through the Market Participant process by a specific time. This NPRR also requires ERCOT’s opinion on a Revision Request in the TAC recommendation to the ERCOT Board. 11/30/2011 ERCOT No 21.4.8, 21.5 Approved
05/01/2012
NPRR432 Deployment of Resources to Alleviate Anticipated Emergency Conditions (formerly "Deployment of Resources to Alleviate Imminent Emergency Conditions") This Nodal Protocol Revision Request (NPRR) institutes parameters governing ERCOT’s utilization of emergency authority under Section 6.5.1.1 when ERCOT seeks to deploy Resources to maintain ERCOT System reliability when Emergency Conditions are anticipated. The NPRR provides a process for ERCOT to procure and deploy Resources that may be used to alleviate anticipated Emergency Conditions in a manner not otherwise delineated in the Protocols and Operating Guides, and requires that such procurements be made only upon approval of the ERCOT Board. In addition to establishing procedural steps for such procurements, the NPRR includes steps to minimize impacts on the broader market. These steps include prohibiting such Resources from being offered into the Day-Ahead Market (DAM) or used solely to reduce local congestion. The proposed market protections also include steps to ensure that the Resources deployed pursuant to this NPRR would be among the last in line for economic Dispatch, so as not to displace Resources that are On-Line and offering into the market. 12/02/2011 ERCOT Yes 6.5.1.1 Approved
03/01/2012
NPRR433 Clarification of Ancillary Service Obligation Calculation Process This Nodal Protocol Revision Request (NPRR) clarifies the ERCOT process regarding the calculation of Ancillary Service Obligations. 12/09/2011 ERCOT No 4.2.1.2 Approved
05/01/2012
NPRR434 Increase the Capacity Limitation of a Generation Resource Providing RRS This Nodal Protocol Revision Request (NPRR) increases the amount of Responsive Reserve (RRS) that can be supplied by a Generation Resource to 24%. 12/27/2011 Robert Helton on behalf of the Reliability Deployment Task Force Yes 3.16 and 3.18 Approved
05/10/2012
NPRR435 Requirements for Energy Offer Curves in the Real Time SCED for Generation Resources Committed in RUC This Nodal Protocol Revision Request (NPRR) adds a requirement for the Qualified Scheduling Entity (QSE) of a Generation Resource committed by the Reliability Unit Commitment (RUC) process to submit an Energy Offer Curve that prices all energy from Low Sustained Limit (LSL) to High Sustained Limit (HSL) at the System-Wide Offer Cap (SWCAP) for RUC committed intervals. When Generation Resources are committed in the Day Ahead or during the Adjustment Period in the RUC process, the QSE shall submit an Energy Offer Curve for the Generation Resource that meets the above requirements no later than the end of the Adjustment Period immediately preceding the Operating Period that includes an Operating Hour coincident with the first hour of the RUC Dispatch Instruction. QSE updates to an Energy Offer Curve entered at the end of the Adjustment Period become effective in ERCOT systems at the start of the next Operating Period. Therefore, if a Generation Resource is committed by an ERCOT Operator issued Verbal Dispatch Instruction(VDI) for the Operating Hour in the immediate Operating Period, then it is expected that the QSE shall submit an Energy Offer Curve that meets the requirements described above as soon as reasonably practicable after receipt of the VDI. ERCOT systems will not validate that the Energy Offer Curve for RUC-committed Generation Resources meet the requirements described above. QSEs are solely responsible to make the submission changes needed to implement the Protocol requirements described in this NPRR. 01/03/2012 ERCOT Yes 6.4.3.1 (new) Approved
03/01/2012
NPRR436 Clarify the Use of the Defined Term Season and Its Derivatives This Nodal Protocol Revision Request (NPRR) deletes the reference to the Operating Guides in paragraph (6) of Section 3.7, and capitalizes uses of the word "Season" and its derivatives where applicable to the definition in Section 2.1, Definitions. 01/17/2012 Operations Working Group (OWG) No 2.1, 3.1.4.8, 3.7, 5.6.1.2, 6.6.9, 8.1.1.2, 11.4.3.2, 16.11.4.1, 18.7.1.2 Approved
08/01/2012
NPRR437 Allow Aggregation of Multiple Generators Into A Single Resource For Market and Engineering Modeling This Nodal Protocol Revision Request (NPRR) will allow aggregation of similar qualified non-wind-powered generators into an Aggregate Generation Resource (AGR) for market and engineering modeling purposes. 01/23/2012 ERCOT Yes 2.1, 2.2, 3.10.7.2, 4.4.9.2.3, 4.6.2.3.1, 5.6.1, 5.7.1.1, 5.7.3, 6.5.5.2, 16.5 Approved
03/01/2012
NPRR438 Additional Minimum Counter-Party Qualification Requirements, Including Risk Management Capability Requirements This Nodal Protocol Revision Request (NPRR) establishes minimum requirements for Counter-Parties to participate in the ERCOT markets. These requirements are in addition to other requirements currently defined in the Protocols. Specifically, Counter-Parties must certify that they: (1) Have appropriate expertise in markets; (2) Have appropriate market operational capabilities; (3) Meet minimum capitalization requirements; and (4) Have risk management capabilities with respect to operating in the ERCOT markets. In addition, this NPRR will require ERCOT to verify the risk management framework for specified Counter-Parties. 01/24/2012 ERCOT No 1.3.1.1, 16.11.4.1, 16.16, (new) 16.16.1, (new) 16.16.2, (new) 16.16.3, (new) Attachment J, (new) Approved
01/01/2013
NPRR439 Updating a Counter-Party's Available Credit Limit for Current Day DAM This Nodal Protocol Revision Request (NPRR) will provide flexibility for Counter-Parties to increase the credit limit available for the Day-Ahead Market (DAM) on the day the DAM is running by posting additional Financial Security under certain circumstances after ERCOT has already set a daily credit limit. 01/25/2012 ERCOT No 16.11.4.6, 16.11.4.6.2 Approved
NPRR441 Revision of Dynamic Rating Recommendation Posting Timeline This Nodal Protocol Revision Request (NPRR) will allow the frequency of posting the list of transmission lines recommended for Dynamic Ratings from semi-annual to annual. 02/01/2012 ERCOT No 3.10.8.4 Approved
06/01/2012
NPRR442 Energy Offer Curve Requirement for Generation Resources Providing Reliability Must-Run Service This Nodal Protocol Revision Request (NPRR) adds the following requirements for Reliability Must-Run (RMR) Units that ERCOT has made available for commitment in accordance with Section 4.4.8: (1) A requirement for the RMR Unit’s Energy Offer Curve to be set at the System-Wide Offer Cap (SWCAP) for Generation Resources providing RMR Service; and (2) A requirement for ERCOT to construct a Mitigated Offer Cap curve for Resources contracted for capacity pursuant to paragraph (2) of Section 6.5.1.1, ERCOT Control Area Authority, such that those Resources are not mitigated in Security-Constrained Economic Dispatch (SCED) and hence will be Dispatched for local constraints only if the prices are higher than or equal to SWCAP. If a Reliability Unit Commitment (RUC) unit is deployed, ERCOT will submit an Output Schedule or Energy Offer Curve for the Generation Resource at the SWCAP. 02/03/2012 Morgan Stanley Yes 4.4.8, 4.4.9.4.1, 6.4.3 Approved
08/29/2012
NPRR443 Removal of Switchable Generation Resource Plans from Protected Information This Nodal Protocol Revision Request (NPRR) will remove the unavailability plans for Switchable Generation from the list of items considered to be Protected Information under the Protocols. This information will be reflected in the Annual Planning Models. 02/07/2012 ERCOT No 1.3.1.1, 16.5.4 Approved
08/01/2012
NPRR445 DC Tie Load Zone Price Clarification This Nodal Protocol Revision Request (NPRR) clarifies that the Real-Time Settlement Point Price at a Direct Current Tie (DC Tie) Load Zone is not weighted by the State Estimator Load value, which includes inadvertent energy. 02/27/2012 ERCOT No 6.6.1.2 Approved
08/01/2012
NPRR446 Correction of Non-Spin Ancillary Service Schedule Telemetry for Standing Non-Spin Deployment This Nodal Protocol Revision Request (NPRR) corrects the language that describes how Qualified Scheduling Entities (QSEs) will update the Non-Spinning Reserve (Non-Spin) Ancillary Service Schedule value in telemetry as introduced in NPRR426, Standing Non-Spin Deployment in the Operating Hour for Generation Resources Providing On-Line Non-Spin, which was approved by the ERCOT Board on December 12, 2011. 02/29/2012 ERCOT No 6.5.7.6.2.3 Approved
08/01/2012
NPRR447 Remove Day- Ahead QSE Requested Decommit Language This Nodal Protocol Revision Request (NPRR) removes eligibility rule language from Section 6.4.6 which conflicts with Section 4.6.2.3, Day-Ahead Make-Whole Settlements; thereby allowing the eligibility rules in Section 4.6.2.3 to determine appropriate startup and energy compensation. 03/05/2012 ERCOT No 6.4.6 Approved
08/01/2012
NPRR448 Clarification of Database Query Results This Nodal Protocol Revision Request (NPRR) clarifies the information returned through a database query or an extract on the Market Information System (MIS) Public Area. 03/07/2012 Kathryn Thurman on behalf of Texas Standard Electronic Transaction (SET) Working Group Yes 15.2 Approved
06/11/2012
NPRR449 Reduce Maximum CRR Transaction Limit in Auctions This Nodal Protocol Revision Request (NPRR) reduces the potential of oversubscription of Congestion Revenue Right (CRR) Auctions due to bid volumes by reducing the first round transaction limit from 10,000 to a value established by the Technical Advisory Committee (TAC). 03/13/2012 WMS Yes 7.5.2 Approved
05/01/2012
NPRR450 Revise Requirements for Contracts to Procure Additional Capacity to Alleviate Emergency Conditions (formerly "Revise Board Approval Requirement for Contracts to Procure Additional Capacity to Alleviate Emergency Conditions") The Nodal Protocol Revision Request (NPRR) revises the process approved in NPRR432, Deployment of Resources to Alleviate Anticipated Emergency Conditions, for execution of contracts with Resources to alleviate anticipated Emergency Conditions. Consistent with the ERCOT Board’s discussion at its February 2012 meeting, this NPRR provides that such contracts may be executed by ERCOT, subject to the Notice provisions already included in NPRR432. This NPRR adds language that ERCOT will provide notice to the ERCOT Board of executed contracts at the first ERCOT Board meeting after the contract is signed. This provision is consistent with the notice to the ERCOT Board provided for Reliability Must Run (RMR) Agreements under Section 3.14.1.3, ERCOT Report to Board on Signed RMR Agreements. This NPRR also proposes revisions to remove the limitation in the procurement of Loads under NPRR432 to Loads that are currently registered with ERCOT as Load Resources. 03/14/2012 ERCOT Yes 6.5.1.1 Approved
05/01/2012
NPRR451 Implementation of New P.U.C. Subst. Rule 25.507, Electric Reliability Council of Texas (ERCOT) Emergency Response Service (ERS) This NPRR is required to implement the provisions of the newly revised P.U.C. Subst. R. 25.507, Electric Reliability Council of Texas (ERCOT) Emergency Interruptible Load Service (EILS). Project 39948, Rulemaking to Electric Reliability Council of Texas (ERCOT) Emergency Interruptible Load Service (EILS), was adopted by the Public Utility Commission of Texas (PUCT) on March 22, 2012. 03/15/2012 ERCOT Yes 2.1, 2.1, 3.14, 3.14.3, 3.14.3.1 (new), 3.14.3.2 (new), 3.14.3.3 (new), 3.14.3.4 (new), 6.5.9.4, 6.5.9.4.2, 6.5.9.4.3, 6.6.11, 6.6.11.1, 6.6.11.2, 8.1.3, 8.1.3.1, 8.1.3.1.1 (new), 8.1.3.1.2 (new), 8.1.3.1.3 (new), 8.1.3.1.3.1 (new), 8.1.3.1.3.2 (new), 8.1.3.1.3.3 (new), 8.1.3.1.4 (new), 8.1.3.2 Approved
06/01/2012
NPRR452 Clarification of Reactive Power Requirements This Nodal Protocol Revision Request (NPRR) clarifies the Reactive Power requirement for Generation Resources required to provide Voltage Support Service (VSS). 03/23/2012 John Adams on behalf of the NPRR366 Workshop No 3.15 Approved
08/01/2012
NPRR453 Separation of Year 1 and Year 2 of the Annual CRR Auctions by Timing This Nodal Protocol Revision Request (NPRR) outlines the Protocol changes needed to allow ERCOT to execute each year of the two-year annual Congestion Revenue Right (CRR) Auctions in separate bid and credit windows for each year to relieve market credit and improve the ability of ERCOT to efficiently execute and analyze the results. Annual CRR Auction processes and systems are already separated in terms of credit lock, modeling, bidding and auction optimization. These changes simply separate the two annual CRR Auctions to run sequentially during the year, rather than simultaneously, to eliminate overlapping annual credit lock exposure. 04/02/2012 ERCOT Yes 7.3, 7.4.2, 7.5.1, 7.5.3 Approved
07/01/2012
NPRR454 Removal of Unfunded Project List Language This Nodal Protocol Revision Request (NPRR) removes language regarding the Unfunded Project List to bring the Protocols in line with the current planning and budgeting process for the ERCOT project portfolio. To facilitate budget and resource forecasting beyond the current year, ERCOT recently created a multiple year project view in the Project Priority List (PPL). Since a project now has a target year for funding within the multi-year PPL, there is no longer a need for an Unfunded Project List review concept as future year projects are regularly considered as new projects are prioritized within the multi-year PPL. 04/04/2012 ERCOT No 21.1, 21.4.6, 21.4.8, 21.4.9,.21.4.10, 21.7, Approved
08/01/2012
NPRR455 CRR Shift Factors Report This Nodal Protocol Revision Request (NPRR) creates a report on the Market Information System (MIS) Secure Area that provides Shift Factors for any binding constraints in a Congestion Revenue Right (CRR) Auction. 04/04/2012 Jackie Ashbaugh on behalf of MIS User Group (MISUG) No 7.5.3.1 Approved
NPRR456 Clarification of Definition of Electrically Similar Settlement Points and Heuristic Pricing Posting This Nodal Protocol Revision Request (NPRR) removes the rating requirement in the current definition for Electrically Similar Settlement Points and introduces a daily public report to post the heuristic pricing associations for Day-Ahead Market (DAM) and Real-Time Market (RTM) price calculations. 04/04/2012 ERCOT No 2.1, 4.2.3.1 Approved
04/25/2013
NPRR457 Daily Update of New ESI IDs and AMS Meter and Switch Hold Indicators Changes (formerly Conditional TDSP ESIID Attribute Information for 814_20 Transactions) This Nodal Protocol Revision Request (NPRR) provides for the addition of Electric Service Identifier (ESI ID) attribute information for conditions in which the transaction type of 814_20, ESI ID Maintenance Request, is submitted that creates an ESI ID or makes changes to an existing ESI ID’s Advanced Metering System (AMS) or switch hold indicator flags utilizing the create or maintain option when submitting the 814_20 transaction. 04/04/2012 Jackie Ashbaugh on behalf of MIS User Group (MISUG) No 15.2 Approved
09/26/2013
NPRR458 Establishment of ERCOT’s Central Counterparty Role This Nodal Protocol Revision Request (NPRR) establishes ERCOT as the central counterparty to all transactions in the ERCOT market, except those involving bilateral trades or self-arranged services. The changes introduced by this NPRR do not alter ERCOT’s functions as the Independent System Operator for the ERCOT Region. Rather, the changes are being proposed to establish mutuality between ERCOT and buyers and sellers in the ERCOT markets. The mutuality established by the proposed changes is intended to facilitate ERCOT’s ability to effectuate set-off in bankruptcy proceedings related to a Market Participant default. This, in turn, is intended to mitigate uplift to Market Participants that may result from monies owed to ERCOT that may not otherwise be recovered in such bankruptcy proceedings due to a lack of mutuality. Consistent with the establishment of ERCOT as the central counterparty, the NPRR deletes all references to ERCOT acting "as agent for" or "on behalf of" a Qualified Scheduling Entity (QSE) when it purchases energy or Ancillary Services. 04/04/2012 ERCOT No 1.2, 2.1, .4.7.1, 4.4.7.1.1, 4.6.4, 6.5.7.5, 22A, 22B, 22D, 22F, Approved
01/01/2013
NPRR459 Better Matching Forward Collateralization with Forward Risk in the Real-Time Market In order to help manage the seasonal nature of the ERCOT market, this Nodal Protocol Revision Request (NPRR) adds a seasonal adjustment factor to raise and lower collateral requirements throughout the year. In addition, this NPRR also recommends that ERCOT only review the last 40 days of history instead of the last 60 days when determining credit requirements. 05/01/2012 NRG Yes 16.11.4.3, 16.11.4.4 Approved
08/01/2012
NPRR460 WGR Ramp Rate Limitations This Nodal Protocol Revision Request (NPRR) increases the Wind-powered Generation Resource (WGR) ramp rate limitation from 10% per minute of nameplate rating to a five minute average of 20% per minute of nameplate rating with no individual minute exceeding 25%.. 05/02/2012 E.ON Climate & Renewables No 6.5.7.10 Approved
12/01/2012
NPRR461 Energy Storage Settlements Consistent With PUCT Project 39917 This Nodal Protocol Revision Request (NPRR) modifies the Protocols to implement the process for Settlement of Energy Storage Resources (ESR) consistent with Public Utility Commission of Texas (PUCT) Project No. 39917, Rulemaking on Energy Storage Issues. 05/02/2012 ERCOT Yes 2.1, 2.2, 3.4, 6.6.3.1, 9.17.1, 10.2.3, 10.3.2.3, 11.4.6, 11.5.1, 11.5.2.2 Approved
02/14/2013

All sections except for Section 11.5.2.2(1)(c)

04/09/2018

Section 11.5.2.2(1)(c)

NPRR462 Removal of Consumer Benefit Test from the ERCOT Planning Criteria This Nodal Protocol Revision Request (NPRR) removes the consumer benefit test from the ERCOT planning criteria consistent with the Public Utility Commission of Texas (PUCT) Project 39537, Rulemaking to Implement HB 971, Relating to Economic Criteria for a Certificate of Convenience and Necessity for an Electric Transmission Project. 05/02/2012 ERCOT No 3.11.2 Approved
08/01/2012
NPRR463 CRR Auction Structure Enhancements This Nodal Protocol Revision Request (NPRR) replaces the annual Congestion Revenue Right (CRR) Auction with a semi-annual sequence of four consecutive six-month CRR Auctions selling CRRs up to two years in the future, scheduled according to a TAC-approved calendar. A proposed initial calendar for TAC consideration will be discussed in parallel to this NPRR. 05/07/2012 DC Energy Texas LLC Yes 2.1, 7.3, 7.4.2, 7.5.1, 7.5.2, 7.5.2.1, 7.5.2.2, 7.5.2.3, 7.5.3, 7.5.3.2, 7.5.5.3, 7.5.5.4, 7.5.6.3, 7.8, 16.11.4.6.1 Approved
04/01/2013
NPRR464 SASM Procurement Reporting This Nodal Protocol Revision Request (NPRR) will require ERCOT to notify Qualified Scheduling Entities (QSEs) whose Ancillary Service capacity was deemed undeliverable, or who failed to provide their required Ancillary Service capacity, details of the Ancillary Services procured on their behalf during a Supplemental Ancillary Services Market (SASM). 05/15/2012 NRG Texas Power LLC Yes 6.4.8.2, 6.4.8.2.3 Approved
02/14/2013
NPRR465 Transmission Planning Analysis to Minimize the Need for RMR Units The Nodal Protocol Revision Request (NPRR) modifies provisions that relate to Reliability Must-Run (RMR) analysis to require that transmission planning analysis is performed to ensure reliability while minimizing the need for RMR Units. 05/18/2012 Paul Rocha on behalf of CenterPoint Energy No 3.14.1, 3.14.1.2 Approved
12/01/2012
NPRR466 Asset Depreciation Schedule for Capital Contributions This Nodal Protocol Revision Request (NPRR) creates an appropriate asset depreciation schedule to apply to the capital contribution repayment obligation for Resources contracted to provide capacity pursuant to Section 6.5.1.1. 05/24/2012 RCWG No 6.5.1.1 Approved
01/01/2013
NPRR467 Balancing Account Resettlement Due to DAM Resettlement This Nodal Protocol Revision Request (NPRR) provides a resettlement of the Congestion Renewable Right (CRR) Balancing Account (CRRBA) due to any changes in a Day-Ahead Market (DAM) resettlement that impacts the CRRBA amount. 06/11/2012 Jim Galvin on behalf of the Communications and Settlement Working Group (CSWG) No 2.2, 9.12, 9.13, 9.13.1, (new) 9.13.2, (new) 9.13.2.1, (new) 9.13.2.2, (new) 9.12.2.3, (new) Approved
12/01/2012
NPRR468 Alignment of System-Wide Offer Cap and Scarcity Pricing Mechanism Language with PUCT Substantive Rules This Nodal Protocol Revision Request (NPRR) removes the specifics for determining the SWCAP and operating the scarcity pricing mechanism language from the Protocols. The SWCAP and scarcity pricing mechanism language will be incorporated into the proposed Other Binding Document (OBD), System-Wide Offer Cap and Scarcity Pricing Mechanism Methodology. 06/13/2012 ERCOT Yes 3.19, 4.4.11, 4.4.11.1, 4.4.11.2 (delete) Approved
08/01/2012
NPRR469 Modifications to CCTs This Nodal Protocol Revision Request (NPRR) proposes changes to the Constraint Competitiveness Tests (CCTs) to resolve the issues with the current design. 06/15/2012 M. Wagner at the direction of the Wholesale Market Subcommittee (WMS) Yes 2.1, 2.2, 3.19, 3.19.1, 3.19.2, 3.19.3, 6.5.7.3 Approved
02/14/2013
NPRR470 Real-Time PTP Option Modeling Language Cleanup This Nodal Protocol Revision Request (NPRR) changes certain billing determinant names to align the Protocols with as-built systems to reflect the implementation of NPRR322, Real-Time PTP Option Modeling, which was approved by the ERCOT Board on June 21, 2011. 08/02/2012 ERCOT Yes 4.6.3, 7.9.1.2, 7.9.1.6, 7.9.2.1, 7.9.2.2, 7.9.2.3, 9.19.1 Approved
10/01/2012
NPRR471 Removal of Language Related to NPRR241 This Nodal Protocol Revision Request (NPRR) removes the grey box language associated with NPRR241, Aggregate Incremental Liability (AIL) Calculation and Credit Reports Publish Corrections. 08/08/2012 ERCOT No 16.11.4.7 Approved
12/01/2012
NPRR472 Implementation Clarifications for Consideration of DC Tie Lines and Outages in CCTs This NPRR proposes changes to the language that was approved by the ERCOT Board on July 17, 2012 as part of NPRR 469. Specifically, consideration of Direct Current Tie (DC Tie) lines for Constraint Competitiveness Tests (CCTs) is updated such that full import capability is counted towards the export side of a constraint but zero MW are counted on the import side of a constraint. The language is also updated such that planned transmission and Resources Outages are not included in the Long-Term CCT. 08/08/2012 ERCOT Yes 3.19.1, 3.19.3 Approved
02/14/2013
NPRR473 Process for Submission of Generation Resource Weatherization Information This Nodal Protocol Revision Request (NPRR) creates a process to accommodate the legislatively mandated submission of generator emergency operations plans. (See Texas Utilities Code § 186.007(f) Weather Emergency Preparedness Report - ("An electric generation entity within the ERCOT power region shall provide the entity’s [emergency operations] plan to ERCOT in its entirety.")). ERCOT has previously requested these plans pursuant to its authority under paragraph (i)(2)(H) of P.U.C. Subst. R. 25.362, Electric Reliability Council of Texas (ERCOT) Governance , which requires ERCOT to provide "[a]n assessment of the reliability and adequacy of the ERCOT system during extremely cold or extremely hot weather conditions, including information regarding steps to be taken by power generation companies and utilities to prepare their assets for extreme weather events." Based on its authority under this statute and rule, ERCOT believes it appropriate to create a formal process for submission of emergency operations plans and plan updates; to recognize the confidential status of information contained in these plans. ERCOT also proposes to require separate submission of weatherization plans for each Generation Resource, as the bulk of the emergency operations plans previously submitted do not pertain to weatherization, and requiring ERCOT to sort through lengthy plans to identify parts that may or may not be intended to apply to weatherization procedures imposes a substantial administrative burden. ERCOT expects that some Resource Entities may prefer to simply extract and submit the existing weatherization portions of existing emergency operations plans, while other Resource Entities may wish to create new plans providing greater detail of weatherization practices. Furthermore, in order to fulfill its regulatory obligation to assess ERCOT System reliability in extreme weather conditions, ERCOT must ensure that plant operators are in fact following the weatherization procedures described in the submitted weatherization plans. ERCOT therefore proposes a semi-annual weatherization declaration to determine ERCOT System preparedness. This declaration would represent that the Resource Entity (or other Entity responsible for the physical operation of a Generation Resource) has completed all weatherization preparations for the upcoming summer and winter season. Finally, in addition to expanding the categories of Protected Information to include emergency operations plans and weatherization plans, ERCOT proposes revisions to paragraph (p) of Section 1.3.1.1 to clarify that all information designated as Protected Information is considered Protected Information, unless it is expressly deemed otherwise by Section 1.3.1.2, Items Not Considered Protected Information, or is no longer confidential, as provided by Section 1.3.3, Expiration of Confidentiality. Existing language could be read to provide that any information a Market Participant is required to submit is not considered Protected Information. Also, the express exclusion of information provided in support of a Reliability Must-Run (RMR) application is redundant of an identical exclusion in paragraph (f) of Section 1.3.1.2. 08/08/2012 ERCOT No 1.3.1.1, 3.21 (new), 22K (new) Approved
01/01/2013
NPRR474 Clarification of Price Correction Principles and Associated Timelines This Nodal Protocol Revision Request (NPRR) provides general principles on the types of errors for which ERCOT may perform a price correction. Additionally, the NPRR provides greater regulatory certainty around the associated timelines for price corrections, including ERCOT notice to Market Participants for a price correction request to the ERCOT Board of Directors (ERCOT Board). The general concepts contained within this NPRR were discussed at the May 11, 2012 Joint Communications and Settlements Work Group (CSWG) and Resource Cost Working Group (RCWG) meeting. Specifically, the NPRR does the following: · Adds one more Business Day to the Real-Time Market (RTM) and Day-Ahead Market (DAM) price correction deadline to allow ERCOT additional time to complete price validation by the time such prices are considered final. The current timeline only gives ERCOT until 1600 on the next Business Day (seven Business Hours) to correct prices for the RTM, which is barely enough time to verify the results, identify issues, calculate new prices, get management approval, do data transfer and post the data. The timeline becomes extremely tight during the weekend, when ERCOT must validate and if needed correct prices for multiple Operating Days (Friday / Saturday/ Sunday) and until 1000 on Monday morning (two Business Hours) to correct prices for the DAM for Sunday. · Adds details around the reasons that would support an ERCOT or ERCOT Board price correction when such prices in the DAM and/or in the RTM are in error. · Proposes a maximum 30-day period beyond any Operating Day for which ERCOT notifies Market Participants of a need for a price correction and request to the ERCOT Board for review of such price correction. 08/08/2012 ERCOT No 4.5.3, 6.3 Approved
04/01/2013
NPRR475 EPS Metering Exception for ERS Generation This Nodal Protocol Revision Request (NPRR) allows transmission connected generators providing Emergency Response Service (ERS) to be exempt from the requirements for ERCOT-Polled Settlement (EPS) Metering if their energy exports to the ERCOT System occur only during ERS deployments or tests; and requires that Transmission Service Provider (TSP) and Distribution Service Provider (DSP) metering be installed to measure any energy exported to the ERCOT Transmission Grid and the TDSP would submit data to ERCOT for Settlement. 08/08/2012 ERCOT No 10.2.2, 10.2.3 Approved
01/01/2013
NPRR476 Market Submitted Energy Offer Curves Disclosures This Nodal Protocol Revision Request (NPRR) provides for the addition of as submitted and extended Energy Offer Curves to the existing 60-Day SCED Disclosure Report; and extended Energy Offer Curves to the 7-Day Event Trigger Posting when the Locational Marginal Price (LMP) exceeds 50 times the Fuel Index Price (FIP) Report. 08/16/2012 Jackie Ashbaugh on behalf of the Market Information System (MIS) User Group (MISUG) No 3.2.5 Approved
12/10/2013
NPRR477 Exception for Block Load Transfers at Presidio This Nodal Protocol Revision Request (NPRR) establishes an exception to the Verbal Dispatch Instruction (VDI) requirement for Block Load Transfers (BLTs) that will only be applied to energy flowing from the Comisión Federal de Electricidad (CFE) into the BLT Point at Presidio that is necessary to maintain reliability in that area. 08/17/2012 American Electric Power Service Corporation Yes 2.1, 6.6.3.5 Approved
10/01/2012
NPRR478 Extension of DAM QSE Offer and Bid Submission Deadline Due to ERCOT Systems Delays This Nodal Protocol Revision Request (NPRR) extends the submission deadline for Qualified Scheduling Entities’ (QSEs’) bids and offers in the Day-Ahead Market (DAM) subsequent to a system-wide delay caused by a failure of ERCOT’s market applications. 08/21/2012 Calpine No 4.5.1 Approved
01/01/2013
NPRR479 Daily Net Outage MW This Nodal Protocol Revision Request (NPRR) modifies the information provided by ERCOT to Market Participants regarding net daily Outage MWs. 08/21/2012 Mercuria Energy No 3.2.3, 4.2.3.1 Approved
10/21/2013
NPRR480 Removal of Language for Relaxing Transmission Constraints This Nodal Protocol Revision Request (NPRR) deletes Protocol language that is inconsistent with North American Electric Reliability (NERC) Reliability Standards. 08/28/2012 ERCOT No 6.5.9.1 Approved
01/01/2013
NPRR481 Report of Hourly Actual System Load by Weather Zone This Nodal Protocol Revision Request (NPRR) provides for a report of the hourly actual system Load for each Weather Zone for the previous Operating Day. 08/30/2012 Jackie Ashbaugh on behalf of the Market Information System (MIS) User Group (MISUG) No 6.3.2 Approved
06/13/2013
NPRR482 Removal of Duplicative Statement of Opportunity Requirements This Nodal Protocol Revision Request (NPRR) removes statement of opportunity language in the Protocols that is duplicative of requirements in P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region. ERCOT will continue to comply with the Public Utility Commission of Texas (PUCT) rule by retaining the posting requirement in the Protocols. 08/31/2012 ERCOT No 3.2.4 Approved
01/01/2013
NPRR483 REC Program Renewable Resource Self-Reporting MWH Production Data and Metering Requirements This Nodal Protocol Revision Request (NPRR) provides an option for a renewable All-Inclusive Generation Resource to self-report quarterly MWh production data to ERCOT for use in the Renewable Energy Credit (REC) Program. In addition, this NPRR establishes metering requirements for any renewable All-Inclusive Generation Resource choosing to self-report MWh production data for use in the REC Trading Program. 09/14/2012 ERCOT No 14.5.1 Approved
01/01/2013
NPRR484 Revisions to Congestion Revenue Rights Credit Calculations and Payments This Nodal Protocol Revision Request (NPRR) replaces the Congestion Revenue Right (CRR) Auction credit calculations with path-specific exposure calculations based on Day-Ahead Market (DAM) clearing prices over a rolling period and revises the Future Credit Exposure (FCE) calculations for CRR Account Holders; which results in a modification to the payment schedule for CRRs. 09/28/2012 Luminant Energy Company, LLC No 7.5.5.3, 9.9, 9.9.1, 9.9.2, 16.11.4.5 Approved
10/21/2013

Sections 7.5.3, 7.5.5.3 (partial), and 16.11.4.5 (partial)

NPRR485 Clarification for Fuel Adder Provisions This Nodal Protocol Revision Request (NPRR) will provide for consistent application of the fuel adder that is meant to compensate Resources for the actual cost of transporting and purchasing fuel on the spot market across Mitigated Offer Caps and Reliability Unit Commitment (RUC) instructions, as well as, allow for Resource-specific verifiable costs to be submitted and verified by ERCOT. The Verifiable Cost Manual is currently undergoing updates to provide for consistent application of the value of X across Mitigated Offer Caps and RUC instructions, where the value of X is meant to compensate Resources for the actual cost of transporting and purchasing fuel purchased on the spot market. The fuel adder ($/MMBtu) cost may be submitted for each Resource and verified by ERCOT. The current default value of $0.50/MMBtu will continue to be used by ERCOT when no specific fuel adder has been provided for a Resource. Slight clean-up language is also needed to point to the Verifiable Cost Manual for methodology used to verify those costs, and to define the methodologies used to account for the fuel costs above the Houston Ship Channel price. 10/01/2012 Luminant Yes 4.4.9.4.1, 5.6.1.1, 5.6.1.2, Approved
12/01/2012
NPRR487 QSGR Dispatch Adjustment This Nodal Protocol Revision Request (NPRR) modifies the emergency energy Settlement treatment of a Quick Start Generation Resource (QSGR) that is brought On-Line with a Base Point less than or equal to its Resource registration applicable Seasonal net minimum sustainable rating. The changes remove the limitation for compensation using an Energy Offer Curve price that is capped by the Mitigated Offer Cap (adjusted to include variable Operations and Maintenance (O&M)). Currently the limitation is two "q" Settlement Intervals. The NPRR would allow this compensation until Security-Constrained Economic Dispatch (SCED) no longer needs the QSGR to generate, subject to performance of the QSGR Decommitment Decision Process. The NPRR also details the QSGR Decommitment Decision Process. 10/03/2012 Luminant Energy LLC Yes 3.8.3, 6.6.5.3, 8.1.1.4.1 Approved
04/01/2013
NPRR488 Resource Entity and LSE QSE Designation or Change This Nodal Protocol Revision Request (NPRR) revises the timing for when a Resource Entity or Load Serving Entity (LSE) is required to designate or change a Qualified Scheduling Entity (QSE) and secure ERCOT approval of the QSE acknowledgment prior to commencing with operations. 10/03/2012 ERCOT No 16.3.1.1, 16.3.3, 16.5.1.1, 16.5.3 Approved
01/01/2013
NPRR489 Planning Reserve Margin This Nodal Protocol Revision Request (NPRR) adds the Planning Reserve Margin (PRM) methodology, currently in the Planning Guide, to the Protocols. 10/03/2012 NRG Energy, Inc. No 2.1, 2.2, 3.2.6 (new), 3.2.6.1 (new), 3.2.6.2 (new), 3.2.6.2.1 (new), 3.2.6.2.2 (new), 21.1 Approved
04/01/2013
NPRR491 Updated Demand Response Information for ERCOT (formerly "Updated Distributed Generation and Demand Response Information for ERCOT") This Nodal Protocol Revision Request (NPRR) proposes to provide ERCOT and the market with needed information on demand response. 10/19/2012 Edison Mission Marketing & Trading No 1.3.1.1, 2.1, 3.10.7.2.1 (new), 3.14.3.4 Approved
11/01/2014
NPRR492 Addition of System Lambda Information This Nodal Protocol Revision Request (NPRR) accounts for the addition of the System Lambda to the Locational Marginal Price (LMP) by Resource Node, Load Zone and Trading Hub report and display; and defines System Lambda within the Protocols and applies the defined term throughout. 10/26/2012 Jackie Ashbaugh on behalf of Market Information System User Group (MISUG) No 2.1, 4.5.1, 6.3.2, 6.6.1 Approved
12/11/2013
NPRR493 Half-Hour RUC Clawback This Nodal Protocol Revision Request (NPRR) removes Reliability Unit Commitment (RUC) Clawback on all Half-Hour Start Units (a) that participate in the Day-Ahead Market (DAM) and (b) during Energy Emergency Alert (EEA) events. This NPRR also changes the RUC Clawback on all Half-Hour Start Units that did not participate in the DAM to 50%. 10/26/2012 GDF Suez Energy Marketing NA No 2.1, 5.7.2 Approved
NPRR495 Changes to Ancillary Services Capacity Monitor This Nodal Protocol Revision Request (NPRR) modifies the Ancillary Service Capacity Monitor information provided by ERCOT both through Inter-Control Center Communications Protocol (ICCP) telemetry and the Market Information System (MIS) Public Area. 10/29/2012 MIS User Group No 6.5.7.5 Approved
11/03/2016
NPRR496 Revise West Hub Definition Due to Permanent Topology Change This Nodal Protocol Revision Request (NPRR) revises the West 345 kV Hub to replace the Sweetwater Cogen (SWCOG) Hub Bus with Sweetwater East Switch (SWESW) Hub Bus. 10/31/2012 ERCOT No 3.5.2.1 Approved
04/02/2013
NPRR497 Corrections to NPRR400 This Nodal Protocol Revision Request (NPRR) corrects language within NPRR400, Eliminate Unsecured Credit for CRR Auctions and for Future Credit Exposure and Eliminate Netting of FCE with CCE, which was approved by the ERCOT Board on October 18, 2011. Modifications include the following: · Available credit limits for the CRR Auction (ACLC) and Available Limit for the DAM (ACLD) must be positive values; · Brackets in Minimum Collateral Exposure (MCE) calculation corrected; and · Ensure that collateral requests to cover non-CRR exposures are not overstated because of potential negative Remainder Collateral values. 10/31/2012 ERCOT Yes 16.11, 16.11.4.1, 16.11.4.3, 16.11.5 Approved
12/12/2012
NPRR498 Cleanup of ERCOT Finance and Audit Committee Responsibilities in Operational Audits This Nodal Protocol Revision Request (NPRR) proposes cleanup to Protocol language in regards to the responsibilities of the ERCOT Finance and Audit (F&A) Committee in operational audits. 10/31/2012 ERCOT No 1.4.2, 1.4.4 Approved
04/01/2013
NPRR499 Revisions to Digital Certificate Holder Qualification Requirements This Nodal Protocol Revision Request (NPRR) removes references to the Foreign Corrupt Practices Act; removes language giving new Market Participants a six-month exemption from certain Digital Certificate issuance requirements; and adds a prohibition against the trade or sale of Digital Certificates. 10/31/2012 ERCOT No 16.12, 16.12.1, 16.12.2, 16.2.3 Approved
04/01/2013
NPRR500 Posting of Generation that is Off but Available This Nodal Protocol Revision Request (NPRR) adds to the Short-Term System Adequacy Report a field showing the aggregate Generation Resource capacity that is schedule in the Current Operating Plan (COP) as "Off" and can be started in time to be available each Operating Hour. 11/02/2012 Morgan Stanley Capital Group, Inc. No 3.2.3 Approved
02/06/2015
NPRR501 Correct ERS Self-Provision Settlement Calculation This Nodal Protocol Revision Request (NPRR) corrects the formula for the Self-Procured Amount per QSE per Emergency Response Service (ERS) Contract Period per ERS Time Period (SPAMTqc(tp)), which affects Settlement payment amounts for Emergency Response Service (ERS) Self-Provision. 11/14/2012 ERCOT Yes 6.6.11.1 Approved
12/12/2012
NPRR502 Addition of Year 6 to the SSWG Base Cases This Nodal Protocol Revision Request (NPRR) adds a sixth year (Year 6) to the Steady State Working Group (SSWG) Data Set B base cases. Revisions to the Transmission Project and Information Tracking (TPIT) and Annual Load Data Request (ALDR) procedures will be required as result of this NPRR. The Planning Working Group (PLWG) has submitted Planning Guide Revision Request (PGRR) 026, Addition of Year 6 to the SSWG Base Cases, to revise related sections of the Planning Guide. 11/20/2012 Planning Working Group (PLWG) No 3.10.2, 3.11.4.1 Approved
04/01/2013
NPRR503 Removal of Language Related to NPRR219 This Nodal Protocol Revision Request (NPRR) removes two grey-boxes associated with NPRR219, Resolution of Alignment Items A33, A92, A106, and A150 - TSPs Must Submit Outages for Resource Owned Equipment and Clarification of Changes in Status of Transmission Element Postings. 11/20/2012 Network Data Support Working Group (NDSWG) No 3.1.3.1, 8.3 Approved
03/01/2014
NPRR504 Removal of Language Related to LPGRR049 This Nodal Protocol Revision Request (NPRR) removes language in Section 18.4.2 and aligns the Protocols with Load Profiling Guide Revision Request (LPGRR) 049, Include AMS ESI IDs in the Annual Validation Process, which allows Electric Service Identifiers (ESI IDs) with provisioned Advanced Meters to be excluded from the Annual Validation of the Load Profile Segment process. 11/27/2012 Ernie Podraza on behalf of the Profiling Working Group (PWG) No 18.4.2 Approved
04/01/2013
NPRR506 Correction of Reconfiguration SASM Language Inconsistency This Nodal Protocol Revision Request (NPRR) makes corrections to a table describing the timeline for a reconfiguration Supplemental Ancillary Services Market (SASM) such that it is consistent with other Protocol language describing the same timeline. 12/05/2012 ERCOT Yes 6.4.8.2 Approved
02/01/2013
NPRR507 Correction of PTP Obligation Settlement Language Related to NPRR322 and NPRR470 This Nodal Protocol Revision Request (NPRR) corrects the formula for the "Real-Time PTP Obligation with Links to an Option per QSE per pair of source and sink" variable (RTOBLLO q, (j, k)), which affects the charge to Qualified Scheduling Entities (QSEs) for cleared Point-to-Point (PTP) Obligation bids with Links to an Option. 12/06/2012 ERCOT Yes 4.6.3 Approved
02/01/2013
NPRR509 Shortened RTM Settlement Timeline This NPRR proposes a phased approach to reduce the posting date for the Initial Settlement Statement from nine days after the Operating Day to seven days after the Operating Day and reduces the posting date of the Final Settlement Statement from the 59th day after the Operating Day to the 57th day after the Operating Day. 12/20/2012 Harika Basaran on behalf of the Commercial Operations Subcommittee (COPS) Yes 9.5.4 and 9.5.5 Approved
08/01/2013
NPRR510 Discretion in Operating Days in OUT Calculation, Clarification of Source of ACP and Clarification of the Definition of Financial Statements This Nodal Protocol Revision Request (NPRR) clarifies discretion for ERCOT to adjust Operating Days used in the calculation of Outstanding Unpaid Transactions (OUT), consistent with certain other components of Estimated Aggregate Liability (EAL). This NPRR also provides clarification of the appropriate Congestion Revenue Right (CRR) Auction clearing price to be used when there have been multiple auctions for the same period and specifies required financial statements. 12/20/2012 ERCOT No 16.11.4.3, 16.11.4.5, 16.11.5 Approved
06/01/2013
NPRR511 Correction to Emergency Energy Settlement Language This NPRR clarifies the Settlement of QSGRs when ERCOT Operations issues a manual override. 01/02/2013 ERCOT Yes 3.8.3, 6.6.9 Approved
06/01/2013
NPRR512 Administrative Changes for February 1, 2013 Nodal Protocols This Nodal Protocol Revision Request (NPRR) modifies language that was inadvertently omitted during the implementation of NPRR313, Revisions to the Resource Plan Reference to Current Operating Plan for EILS and Synchronous Condensers and Black Start Notification Requirements, into the September 1, 2011 Nodal Protocols. NPRR313 was approved by the ERCOT Board on August 16, 2011. 01/08/2013 ERCOT No 22D Approved
02/01/2013
NPRR513 Removal of Nodal Implementation Surcharge This Nodal Protocol Revision Request (NPRR) removes references to the Nodal Implementation Surcharge (NIS). 01/30/2013 ERCOT No 2.2, 3.14.1.10, 3.14.1.13, 5.6.1, 5.6.1.1, 5.6.1.2, 9.5.3, 9.16.4 Approved
08/01/2013
NPRR514 Seasonal Generation Resource This Nodal Protocol Revision Request (NPRR) creates a new variation of ERCOT’s existing mothball process to allow Resource Entities to operate their Facilities during summer peak Load periods without having to go through the existing mothballing process each year. This NPRR modifies the Protocols to allow a Resource Entity to designate that its Generation Resource will operate only on a seasonal basis (i.e., at least during the period June 1 to September 30). Additional language changes are provided to describe the process for ERCOT to review the request to operate seasonally and to allow ERCOT to request the Generation Resource to become available earlier than June 1 or remain available after September 30 if ERCOT determines that the Generation Resource is needed for reliability reasons. 02/04/2013 Luminant Energy Company LLC Yes 2.1, 3.9.1, 3.14.1.1, 3.14.1.9, 22-E, 22-H Approved
06/01/2013

All sections except for Sections 3.14.1.9(3) and 3.14.1.9(7)

09/25/2013

Sections 3.14.1.9(3) and 3.14.1.9(7)

NPRR515 Day-Ahead Market Self-Commitment of Generation Resources This Nodal Protocol Revision Request (NPRR) adds a Day-Ahead Market (DAM) mechanism for self-committing Generation Resources on an hourly basis; and makes a minor clarification to the description of the timing of the Simultaneous Feasibility Test (SFT) process. 02/05/2013 ERCOT No 4.4.9.1, 4.5.1 Approved
08/01/2013

Section 4.5.1

06/22/2016

All remaining sections

NPRR516 Change to Verifiable Cost Manual Revision Process This Nodal Protocol Revision Request (NPRR) removes the Verifiable Cost Manual revision process from Section 5.6.1. In conjunction with this revision, the Verifiable Cost Manual was revised to incorporate a change control process analogous to the common process used in ERCOT Protocols and market guides. 02/06/2013 ERCOT No 5.6.1 Approved
08/01/2013
NPRR517 Revisions to the Telemetry Standards and State Estimator Standards Approval Process This Nodal Protocol Revision Request (NPRR) revises the requirement for an annual update to an annual review and provides for updates on an as needed basis for both the Telemetry Standards and State Estimator Standards. 02/06/2013 ERCOT No 3.10.4, 3.10.5, 3.10.7.5, 3.10.7.5.2, 3.10.9, 3.10.9.1 Approved
08/01/2013
NPRR518 Removal of Notification Requirement for Disclosures of Protected Information Required by CFTC Protocol Section 1.3.5 requires ERCOT to notify a Market Participant prior to disclosing its information to any outside Entity, except when disclosing that information to the Public Utility Commission of Texas (PUCT), in which case no notice is required. As a condition for receiving an exemption from all but the anti-manipulation and anti-fraud provisions of the Commodity Exchange Act, the CFTC will mandate the removal of any requirement that ERCOT notify a Market Participant before disclosing its information in response to a subpoena or other request for information or documents from the CFTC. More specifically, the proposed CFTC order contemplates the following provision: "Notification of requests for information: With respect to each Requesting Party, neither the tariffs nor any other governing documents of the particular RTO or ISO pursuant to whose tariff the agreement, contract or transaction is to be offered or sold, shall include any requirement that the RTO or ISO notify its members prior to providing information to the Commission in response to a subpoena or other request for information or documentation." This NPRR therefore proposes to modify Section 1.3.6 to create an explicit exception to the prohibition against disclosing Protected Information that would authorize ERCOT to respond to CFTC requests, and further proposes adding an exception to the notice requirement in Section 1.3.5 to accommodate CFTC investigative requests. Like the current exception for the PUCT, this proposed exception is necessary because having to notify an affected Market Participant of this disclosure may lead the Market Participant to take actions that could compromise the investigation or other regulatory inquiries. This NPRR also proposes additional language in Section 1.3.4 that would require ERCOT to submit a written request for confidential treatment to the CFTC whenever disclosing Protected Information. CFTC rules require the filing of such a request as a condition for asserting confidentiality, and because the current Protocol language would otherwise require ERCOT to seek a protective order, which is not a readily available remedy in this circumstance, this additional language is necessary to ensure that all available means are used to protect Market Participant information. 02/06/2013 ERCOT Yes 2.2, 1.3.4, 1.3.5, 1.3.6 Approved
04/01/2013
NPRR519 Exemption of ERS-Only QSEs from Collateral and Capitalization Requirements This Nodal Protocol Revision Request (NPRR) exempts those Qualified Scheduling Entities (QSEs) that represent only Emergency Response Service (ERS) Resources and that do not participate in the Day-Ahead Market (DAM), Real-Time Market (RTM) and Congestion Revenue Right (CRR) markets ("ERS-only QSEs") from the collateral and financial statement reporting requirements in Section 16.11, Financial Security for Counter-Parties, and from each of the various requirements in Section 16.16, Additional Counter-Party Qualification Requirements, including those relating to capitalization, certification, and the verification of a risk management framework. Upon notifying ERCOT of its election to move to ERS-only status, ERCOT would verify that the QSE meets the relevant requirements, including having a Total Potential Exposure (TPE) of zero, before authorizing this designation. If a QSE wishes to terminate its ERS-only status in order to participate in other ERCOT markets, it must provide advance written notification to ERCOT and must demonstrate compliance with the relevant collateral and capitalization requirements before receiving approval to terminate. 02/06/2013 ERCOT No 16.2.1, 16.17 Approved
06/02/2019
NPRR520 Real-Time Mitigation Rules and Creation of a Real-Time Constraint Competitiveness Test This primary changes in this Nodal Protocol Revision Request (NPPR) are the following: -The Monthly and Daily Constraint Competitiveness Tests (CCTs) will be replaced with a CCT that is performed as part of the Security-Constrained Economic Dispatch (SCED) process considering only those constraints that are active in SCED and using the current system conditions -The Element Competitiveness Index (ECI) calculation for the Long-Term and SCED CCTs will only be performed on the import side of a constraint -The designation of a constraint as competitive or non-competitive in the SCED CCT will not be dependent on the designation during the Long-Term CCT -The Independent Market Monitor (IMM) is given the ability to designate constraints as either competitive or non-competitive, regardless of CCT results -Only those Entities with decision making authority that have a significant impact in making a constraint non-competitive will be considered for mitigation in SCED -Only those Resources that have a significant contribution in getting the Entity with decision making authority considered for mitigation for a Non-Competitive Constraint will have mitigation applied in SCED -The formula for mitigating energy offers in SCED is changed to include a small adder to the reference price from SCED Step 1 in order to minimize issues caused by the tie breaking logic The use of Mitigated Offer Floors in the SCED process is removed. 02/06/2013 ERCOT Yes 2.1, 3.19, 3.19.1, 3.19.2, 3.19.3, 3.19.4,3.19.5, 6.5.7.3, 6.5.7.4 Approved
06/13/2013

All sections except for Section 6.5.7.4

08/01/2013

Section 6.5.7.4

NPRR521 Transitional CRR Auction Capacity Value for Initial CRR Long-Term Auction Sequence For initial implementation purposes only, this NPRR proposes to increase the initial CRR Auction Capacity for the first six-month portion of the initial CRR Long-Term Auction Sequence from 60% up to 70% in order to mitigate potential system and market issues during the transition from the Annual CRR Auction to the CRR Long-Term Auction Sequence. 02/15/2013 ERCOT Yes 7.5.1 Approved
09/01/2013
NPRR522 Adjustment of Demand Response Performance for Distribution Losses (formerly "Adjustment of Demand Response Performance for T&D Losses ") This Nodal Protocol Revision Request (NPRR) addresses inequality by adjusting the metered Load of demand response Resources for Distribution Losses. 02/25/2013 DSWG No 3.7.1.2, 3.9.1, 3.14.3.3, 4.4.7.2.1, 8.1.1.2, 13.3 Approved
08/01/2013

All sections except for Section 3.14.3.3(3)(a)

10/01/2013

Section 3.14.3.3(3)(a)

NPRR523 Available Credit Limit (ACLC and/or ACLD) Calculations During Computer System Failures This Nodal Protocol Revision Request (NPRR) provides clarification of the process for generating credit exposure calculations (Available Credit Limit for the CRR Auction (ACLC) and/or Available Credit Limit for the DAM (ACLD)) when an ERCOT computer system failure occurs and for communication of such calculations to Counter-Parties. 03/01/2013 EROCT No 16.11.4.6 Approved
08/01/2013
NPRR524 Resource Limits in Providing Ancillary Service This Nodal Protocol Revision Request (NPRR) will clarify and allow Generation Resources with supplemental capacity that is not always frequency responsive to provide the supplemental capacity to the market and also continue to participate in the Responsive Reserve (RRS) Service market. 03/05/2013 GDF Suez Energy Marketing NA, Inc. Yes 3.18, 6.5.5.2 Approved
NPRR525 Elimination of Three-Year Expiration for CRR Auction Revenue Distribution Methodology This Nodal Protocol Revision Request (NPRR) will remove the December 1, 2013 deadline for reconsideration of the Congestion Revenue Right (CRR) Auction Revenue Distribution (CARD) method and allow the current methodology to become permanent. 03/05/2013 ERCOT No 7.5.7 Approved
08/01/2013
NPRR526 Frequency of Audit on ERCOT Model This Nodal Protocol Revision Request (NPRR) revises the frequency of the audit on the ERCOT model from an annual audit to once every three years. 03/06/2013 ERCOT No 3.10 Approved
08/01/2013
NPRR527 Required Combined Cycle Telemetry for Operational Awareness and PDCWG Analysis This Nodal Protocol Revision Request (NPRR) requires Combined Cycle Generation Resources to telemeter individual High Sustainable Limits (HSLs) for gas and steam turbines. The HSLs for combustion and steam turbines were previously submitted in the zonal market and ERCOT requests this practice be resumed in the Nodal market. 03/06/2013 ERCOT No 2.1, 2.2, 6.5.5.2 Approved
12/01/2013

All sections except for Section 6.5.5.2(2)(j)

11/01/2014

Section 6.5.5.2(2)(j)

NPRR528 Clarification of Assessment of Chronic Congestion This Nodal Protocol Revision Request (NPRR) consolidates into one section, the steps ERCOT will take when active or binding transmission constraints are identified. 03/06/2013 ERCOT No 3.10.4, 3.11.5, 3.20, 6.5.7.1.11 Approved
01/01/2014
NPRR529 Constraint Management Plan (formerly "Congestion Management Plan") This Nodal Protocol Revision Request (NPRR) defines Constraint Management Plan (CMP) and several subcategories such as a Mitigation Plan and a Remedial Action Plan (RAP) and clarifies actions to be taken when Security-Constrained Economic Dispatch (SCED) is unable to resolve a constraint causing a security violation. 03/06/2013 ERCOT No 2.1, 2.2, 3.1.6.5, 3.10.7.4, 6.5.7.1.10 Approved
01/01/2014
NPRR530 Transfers of Specific NOIEs Within a NOIE Load Zone to a Competitive Load Zone This Nodal Protocol Revision Request (NPRR) would allow a Non-Opt-In Entity (NOIE), who has provided notification of termination of its pre-1999 power supply contract, to move to a Competitive Load Zone in January 2014. Currently paragraph (2) of Section 3.4.2 requires that such a NOIE provide notice to ERCOT of termination of its power supply arrangement no later than 90 days prior to the next annual Congestion Revenue Right (CRR) Auction. Upon implementation of NPRR463, CRR Auction Structure Enhancements, annual CRR Auctions will no longer be conducted. This NPRR also removes obsolete references to the Texas Nodal Market Implementation Date and provides additional clarification regarding NOIE Load Zones in Section 3.4.3. 03/20/2013 The City of Georgetown Yes 3.4.2, 3.4.3 Approved
06/01/2013
01/09/2014

Sunset Section 3.4.2(3)

NPRR531 Clarification of IRR Forecasting Process Posting Requirement This Nodal Protocol Revision Request (NPRR) clarifies that the procedures describing the forecasting process that ERCOT must publish on the Market Information System (MIS) Public Area pursuant to Section 3.2.1 relate specifically to ERCOT's Intermittent Renewable Resource (IRR) forecasting process. 03/22/2013 ERCOT No 3.2.1 Approved
08/01/2013
NPRR532 Performance Measurement and Verification and Telemetry Requirements for Load Resources Providing Non-Spin This Nodal Protocol Revision Request (NPRR) enables participation in the Non-Spinning Reserve (Non-Spin) Service market for Load Resources whose provision of Demand response is most accurately measured and verified using a baseline performance evaluation methodology. The NPRR establishes a method for evaluating Non-Spin performance using a baseline methodology, which compares actual Load to a reliable estimate of what the Load would have been in the absence of the deployment. This NPRR also establishes new telemetry requirements for Qualified Scheduling Entities (QSEs) representing Load Resources in the Non-Spin market to allow ERCOT’s systems to monitor the status and performance of those Load Resources in Real-Time. 03/26/2013 DSWG Yes 3.9.1, 4.4.7.2.1, 6.5.5.2, 6.5.7.6.2.3, 8.1.1.2.1.3, 8.1.1.3.3, 8.1.1.4.3 Approved
06/01/2014
NPRR533 PCRR Eligibility Requirements (formerly "Clarification of PCRR Eligibility Requirements") This Nodal Protocol Revision Request (NPRR) clarifies the eligibility for Pre-Assigned Congestion Revenue Rights (PCRRs) subject to changes over time in contracts, Entity relationships, and resource status and capabilities. 03/29/2013 ERCOT Yes 3.4.2, 7.4, 7.4.1, 7.4.1.1 (new), 7.4.1.3 (new), 7.4.1.3.1 (new), 7.4.1.3.2 (new), 7.4.2, 7.4.2.1 (new), 7.4.2.2 (new) Approved
05/01/2014
NPRR534 Clarification of QSE Responsibilities to Provide Service in NOIE Territory This Nodal Protocol Revision Request (NPRR) provides clarity that third party Qualified Scheduling Entities (QSEs) offering services within a Non-Opt-In Entity (NOIE) service territory require NOIE authorization. 04/03/2013 STEC, CPS Energy, Kerrville Public Utilities Board, Rayburn Country Electric Coop, Golden Spread Electric Coop and on behalf of Denton Municipal Electric Yes 16.2.3, 16.5.2, 22G Approved
06/01/2013
NPRR536 ERS Time Obligation Certainty This Nodal Protocol Revision Request (NPRR) strikes language which has the effect of creating an uncertain and indefinite obligation to provide ongoing Demand response capacity in an emergency. 04/19/2013 DSWG No 3.14.3.3, 6.5.9.4.2 Approved
12/01/2013
NPRR538 Clarification of the Non-Spin Energy Offer Curve Requirements for QSGRs This Nodal Protocol Revision Request (NPRR) clarifies that the $120 per MWh Energy Offer Curve floor for Non-Spinning Reserve (Non-Spin) capacity is the floor that is applicable to Quick Start Generation Resources (QSGRs) that are providing Non-Spin and are available for deployment by Security-Constrained Economic Dispatch (SCED) pursuant to Section 3.8.3, Quick Start Generation Resources. 04/25/2013 ERCOT No 6.4.3.2 Approved
10/01/2013
NPRR539 Amend Wholesale Storage Load Definition This Nodal Protocol Revision Request (NPRR) adds thermal energy storage associated with turbine inlet chilling to the list of technologies eligible for Wholesale Storage Load (WSL) Settlement treatment. At its April 12, 2013 meeting, WMS endorsed this NPRR and directed Emerging Technologies Working Group (ETWG) to file it. There was one abstention to the WMS motion from the Consumer Market Segment. 04/26/2013 Mark Bruce on behalf of Emerging Technologies Working Group (ETWG) No 2.1 Approved
10/01/2013
NPRR540 Clarification of Credible Single Contingency This Nodal Protocol Revision Request (NPRR) revises the use of Credible Single Contingency to align with actual practice. 04/26/2013 Frank Owens on behalf of OWG No 2.1, 6.5.7.1.10, 6.5.9.3.2, 6.5.9.3.4 Approved
01/01/2014
NPRR541 SPS and RAP Modeling Clarification This Nodal Protocol Revision Request (NPRR) clarifies that ERCOT models all new Special Protection Systems (SPSs) and Remedial Action Plans (RAPs) and all changes to SPSs and RAPs via the Network Operations Model Change Request (NOMCR) process. 04/29/2013 ERCOT No 3.10.7.4 Approved
01/01/2014
NPRR542 Clarification of the Use of Emergency Condition This Nodal Protocol Revision Request (NPRR) clarifies the use of Emergency Condition in the Nodal Protocols. 04/30/2013 Operations Working Group (OWG) No 2.1, 3.10.7.5.1, 3.10.7.6, 4.1.2, 5.2.2.2, 6.3.3, 6.5.9.1, 6.5.9.2, 6.5.9.3.1, 6.5.9.3.2, 6.5.9.3.3, 6.5.9.3.4, 6.5.9.4.1, 6.6.9, 6.6.9.1 Approved
01/01/2014
NPRR543 Message for Confirmed E-Tags This Nodal Protocol Revision Request (NPRR) provides for notification when a confirmed Electronic Tag (e-Tag) is downloaded, cancelled, or curtailed by ERCOT’s systems. 05/10/2013 Tenaska Power Service Co. No 4.4.4 Approved
06/25/2015
NPRR545 Removal of Reference to Wave Traps This Nodal Protocol Revision Request (NPRR) removes a reference to wave traps as this equipment is not modeled in ERCOT systems. 05/28/2013 ERCOT No 3.3.2 Approved
12/01/2013
NPRR546 Removal of References to RUC Notifications This Nodal Protocol Revision Request (NPRR) removes outstanding references to "Reliability Unit Commitment (RUC) Notifications." This language is no longer relevant as a result of changes made through NPRR321, Allow Change to Energy Offer Curve MW Amounts in the Adjustment Period, which was approved by the ERCOT Board on 9/20/11. 06/04/2013 ERCOT No 2.1, 4.4.9.2.1, 5.5.2 Approved
12/01/2013
NPRR547 Governor Test Data This Nodal Protocol Revision Request (NPRR) aligns the Protocols with current practice by clarifying that Governor test results are made available to Transmission Service Providers (TSPs). 06/05/2013 ERCOT No 8.5.1.1, 8.5.1.2 Approved
12/01/2013
NPRR548 Remove NPRR153 Grey Boxes and Clarify Fixed Quantity Block Treatment in the DAM This Nodal Protocol Revision Request (NPRR) removes the grey boxes that are pending implementation of system changes associated with NPRR153, Generation Resource Fixed Quantity Block. Further, this NPRR provides clarification for how the Day-Ahead Market (DAM) currently considers blocked offers and bids for Ancillary Services. 06/21/2013 ERCOT No 4.4.7.2.1, 4.4.9.5.1, 4.4.9.6.1, 4.5.1 Approved
12/01/2013
NPRR549 Clarification for Posting Transmission Loss Factors This Nodal Protocol Revision Request (NPRR) clarifies the posting requirements for Transmission Loss Factors (TLFs). 06/24/2013 ERCOT No 13.2.4, 13.2.5 Approved
12/01/2013
NPRR550 Modifications to Planning Reserve Margin Inputs This Nodal Protocol Revision Request (NPRR) proposes modifications to the Planning Reserve Margin (PRM) based on the results of the 2012 ERCOT Loss of Load Study and subsequent discussions of the Generation Adequacy Task Force (GATF). 06/27/2013 GATF Yes 3.2.6.1, 3.2.6.2.1, 3.2.6.2.2, 21.1 Approved
12/01/2013
NPRR551 Posting of Annual Planning Model This Nodal Protocol Revision Request (NPRR) establishes that ERCOT shall post the Annual Planning Model by October 15th of each year. 07/01/2013 ERCOT Yes 3.10.2, 3.10.5 Approved
10/01/2013
NPRR552 Additional Counter-Party Criteria Under the CFTC’s "Final Order on RTO and ISO Exemption for Certain Specified Transactions" issued in response to the ISO/RTO Joint Application for Exemption (Final Order), to be eligible for the exemption, applicable transactions must be entered into by persons who are either "appropriate persons" or "eligible contract participants" as defined in the CEA, or that meet other conditions as defined in the Final Order. This NPRR incorporates these requirements into the Protocols and mandates an annual certification by Counter-Parties that they are in compliance. 07/03/2013 ERCOT Yes 16.16.1, 22J Approved
10/01/2013
NPRR553 Monthly BLT Payment and Charge for Presidio Exception This Nodal Protocol Revision Request (NPRR) introduces a new monthly charge type allocated through monthly Load Ration Share (LRS). 07/03/2013 Jim Galvin on behalf of the Communications and Settlements Working Group (CSWG) No 6.6.3.5 Approved
12/01/2013
NPRR554 Clarification of Future Credit Exposure Calculation This Nodal Protocol Revision Request (NPRR) clarifies certain language in Section 16.11.4.5, Determination of the Counter-Party Future Credit Exposure, that was introduced by NPRR484. In particular, this NPRR proposes (1) revisions to the Future Credit Exposure (FCE) calculation to explicitly recognize deferred Invoice-related exposure separate from mark-to-market exposure; (2) modification of certain variables and subscripts that would otherwise appear to require calculation of certain portfolio-level values based on path-specific inputs; and (3) various administrative revisions. These changes are intended to be consistent with, and in furtherance of, the purposes of NPRR 484. 07/03/2013 ERCOT Yes 16.11.4.5 Approved
10/21/2013
NPRR555 Load Resource Participation in Security-Constrained Economic Dispatch This NPRR enables Demand response from Controllable Load Resources, as re-defined, to be Dispatched by Security-Constrained Economic Dispatch (SCED) based on a Real-Time Market (RTM) Energy Bid. This NPRR clarifies the initial rules for participation in the RTM by newly-defined "Aggregate Load Resources" (ALRs), consisting of multiple metered sites within a single ERCOT Load Zone. Controllable Load Resources, including ALRs, must be capable of responding to five-minute SCED Base Point instructions, which could instruct Load changes in either direction (up or down) if the Controllable Load Resource’s bid sets the Locational Marginal Price (LMP). The NPRR, along with associated Other Binding Documents, also establishes a long-term solution for Controllable Load Resource provision of Non-Spinning Reserve (Non-Spin) Service by allowing participating Controllable Load Resources providing Non-Spin to be Dispatched economically. Initial participation will be limited to Load Serving Entity (LSE) QSEs (the only QSEs that can submit bids to buy energy) and Controllable Load Resources capable of responding to five-minute SCED Base Points. Future enhancements to the market will be necessary to accommodate direct participation by third-party Demand response aggregators and Load Resources with "block" offers or bids. Additionally, as drafted, NPRR555 will not accommodate Load Resources with ramp periods longer than five minutes, nor will it accommodate the provision of Ancillary Services by Controllable Load Resources with temporal constraints such as minimum or maximum run times. As submitted, the NPRR proposes uniform performance and compliance metrics for any Load Resource participating in SCED; however, ERCOT encourages Market Participants to consider whether establishing more relaxed metrics for Load Resources that are not carrying an Ancillary Service Resource Responsibility would attract more participation. 07/03/2013 ERCOT Yes 2.1, 2.2, 3.2.5, 3.6, 3.6.1 (new), 3.6.2 (new), 3.7.1.2, 3.9.1, 3.10.7.2, 3.17.3, 6.3, 6.3.1, 6.4.3 (new), 6.4.3.1 (new), 6.4.3.1.1 (new), 6.4.3.1.2 (new), 6.4.3.2, 6.4.3.3, 6.5.5.2, 6.5.7.1.12, 6.5.7.2, 6.5.7.3, 6.5.7.4, 6.5.7.5, 6.5.7.6.2.2, 6.5.7.6.2.3, 6.6.5, 6.6.5.1, 6.6.5.1.1, 6.6.5.1.2, 6.6.5.1.1.3 (new), 6.6.5.1.1.4 (new), 6.6.5.2, 6.6.5.4, 8.1.1.2, 8.1.1.4.1, 8.1.1.4.3 Approved
06/01/2014
NPRR556 Resource Adequacy During Transmission Equipment Outage This Nodal Protocol Revision Request (NPRR) adds a requirement for the Network Operations Model so that Resources that are being served by temporary equipment can participate in the ERCOT market as in normal operations. 07/10/2013 Tenaska Power Services Yes 3.10.7.2 Approved
10/22/2015
NPRR557 Clarification of Treatment of Holidays for RTM Settlement Timeline (formerly "Administrative Changes for August 1, 2013 Nodal Protocols") This Nodal Protocol Revision Request (NPRR) corrects one word in the Section 9.5.4 by replacing "withstanding" with "notwithstanding" to align the sentence with the purpose of addressing treatment of holidays. 07/11/2013 ERCOT Yes 9.5.4 Approved
10/01/2013
NPRR558 Addition of Bilateral Load Response Data to Protected Information List This Nodal Protocol Revision Request (NPRR) adds bilateral Load response data to the list of items considered Protected Information. 07/12/2013 Reliant Energy Retail Services LLC No 1.3.1.1 Approved
01/01/2014
NPRR559 Revisions to MCE Calculation This Nodal Protocol Revision Request (NPRR) revises the definition of the MCE component of Total Potential Exposure (TPE) to allow adjustment for the revised Settlement cycle that will be effective with implementation of NPRR509, Shortened RTM Settlement Cycle. MCE is changed from "Minimum Collateral Exposure" to "Minimum Current Exposure" for consistency with other Protocol language and with existing Counter-Party reports. The approval process for variables M1 and M2 is clarified to specify that TAC and Board-approved changes will be implemented on the first day of the month following ERCOT Board approval unless otherwise directed by the ERCOT Board, and that no NPRR is necessary. 07/17/2013 ERCOT No 16.11.4.1 Approved
12/01/2013

All Section 16.11.4.1 revisions except for the Minimum Current Exposure (MCE) formula

06/13/2015

Section 16.11.4.1 revisions to the MCE formula

NPRR560 Caps and Floors for Energy Storage Resources This Nodal Protocol Revision Request (NPRR) creates a definition of Energy Storage Resource and specifies values for the various caps and floors used in the mitigation and make-whole calculation processes for such Resources. 07/18/2013 Emerging Technologies Working Group (ETWG) No 2.1, 4.4.9.2.3, 4.4.9.3.3, 4.4.9.4.1, 4.4.9.4.2, 5.6.1, 7.9.1.3 Approved
01/01/2015
NPRR561 Clarification of Shutdown Telemetry Status This Nodal Protocol Revision Request (NPRR) revises Section 3.9.1 to clarify that Generation Resources that are providing Non-Spinning Reserve (Non-Spin) and that can continue to be available for deployment within the time frame established in the Protocols, may continue to carry Off-Line Non-Spin during shutdown. 08/09/2013 ERCOT No 3.9.1 Approved
01/01/2014
NPRR562 Subsynchronous Resonance This Nodal Protocol Revision Request (NPRR) creates new requirements for the identification, study, mitigation of, and protection against Subsynchronous Resonance (SSR). 08/12/2013 ERCOT No 2.1, 2.2, 3.1.1, 3.1.5.11, 3.22 (new), 3.22.1 (new), 3.22.1.1 (new), 3.22.1.2 (new), 3.22.1.3 (new), 3.22.1.4 (new), 3.21.2 (new), and 3.22.3 (new) Approved
09/14/2017

All sections except for Section 3.22.1.4

04/09/2018

Section 3.22.1.4

NPRR563 Credit Lock Standards This Nodal Protocol Revision Request (NPRR) removes ERCOT’s discretion to allow Counter-Parties participating in a Congestion Revenue Right (CRR) Auction to post credit past the end of the CRR bid submission window. 08/16/2013 Morgan Stanley No 16.11.4.6.1 Approved
03/01/2014
NPRR564 Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions This Nodal Protocol Revision Request (NPRR) proposes a 30-minute Emergency Response Service (ERS) product and recommends other changes to ERS more generally, including the following: 1. Introduces Settlement based on a clearing price instead of individual Qualified Scheduling Entity (QSE) offer price. 2. Introduces stronger financial penalties for non-performance in a single ERS Standard Contract Term but removes mandatory suspensions. 3. Clarifies obligations of ERS Resources when deployments cross over multiple ERS Time Periods. 4. Authorizes ERCOT to provide times and dates of particular Resource deployments to QSEs in order to allow them to analyze past performance of newly acquired ERS sites. 5. Prohibits participation by sites associated with Dynamically Scheduled Resources (DSRs). 6. Clarifies that ERS Generators and ERS Loads are to be evaluated together when an ERS Generator is providing backup to an ERS Load. 08/21/2013 ERCOT Yes 2.1, 3.14.3, 3.14.3.1, 3.14.3.2, 3.14.3.3, 3.14.3.4, 6.5.9.4.2, 6.6.11.1, 6.6.11.2, 8.1.3.1.1, 8.1.3.1.2, 8.1.3.1.3, 8.1.3.1.3.1, 8.1.3.1.3.2, 8.1.3.1.3.3, 8.1.3.1.4, 8.1.3.2, 8.1.3.3, 8.1.3.3.1, 8.1.3.4, 8.4, 9.14.5 Approved
02/01/2014

All sections except for Section 3.14.3.4(3)

10/16/2014

Section 3.14.3.4(3)

NPRR565 Seasonal Generation Notifications This Nodal Protocol Revision Request (NPRR) proposes that a seasonally operating Resource Entity’s 15 day Notification requirement (when returning to service early, or suspending operations later) be based on the Seasonal Operation Period designated by the Resource Entity in its Notification of Suspension of Operations. Additional revisions correct references to Part III of Section 22, Attachment E, Notification of Suspension of Operations. 08/23/2013 Luminant Energy Company, LLC No 3.14.1.2, 3.14.1.9 Approved
01/01/2014
NPRR566 Removal of Language Regarding QSE Service Filings This Nodal Protocol Revision Request (NPRR) removes outdated language regarding Qualified Scheduling Entity (QSE) Service Filings. 08/27/2013 ERCOT No 16.2.3, 16.2.3.1 Approved
01/01/2014
NPRR567 Stakeholder Review of Resource Registration Data Requirements This Nodal Protocol Revision Request (NPRR) describes the process for review and approval of changes, additions or deletions to the required Resource Registration data; and defines a new term "Resource Registration" to ensure consistency when referencing Resource data throughout the Protocols, Planning Guides, and Other Binding Documents. 09/06/2013 Resource Data Working Group (RDWG) No 2.1, 3.2.6.2.2, 3.7, 3.7.1.1, 3.7.1.2, 3.7.1.3, 3.7.2, 3.8.2, 3.10, 3.10.1, 3.10.6, 3.10.7.1, 3.10.7.1.4, 3.10.7.2, 3.15, 3.20, 4.5.1, 4.6.1.4, 6.4.4, 6.5.5.2, 6.6.9, 16.5, 22, Attachment H Approved
03/01/2014
NPRR568 Real-Time Reserve Price Adder Based on Operating Reserve Demand Curve This NPRR requires ERCOT to implement an Operating Reserve Demand Curve (ORDC) in the Real-Time Market (RTM) to determine the Real-Time price adder for Real Time Settlement Point Prices. The Real-Time price adder reflects the price for reserves available in the ERCOT System based on the loss of Load probability at that reserve level. The addition of this price adder to the Real Time Settlement Point Price ensures that the Real Time Settlement Point Price reflects the opportunity cost of reserve scarcity. A new Other Binding Document, "Methodology for Implementing Operating Reserve Demand Curve (ORDC) to Calculate Real-Time Reserve Price Adder," a draft of which is attached to this NPRR as Attachment 1, will describe the methodologies for developing the ORDC and determining the reserve price adder using the ORDC. It will also list the values of the parameters to be used. Additional details about the methodology and a backcast based on the methodology can be found in filings under Public Utility Commission of Texas (PUCT) Docket No. 40000, Commission Proceeding to Ensure Resource Adequacy in Texas, and Key Documents posted on the Resource Adequacy Task Force home page . Since Real-Time co-optimization of energy and Ancillary Services will not be implemented at this time, to ensure that Resources are indifferent between providing energy and reserves in Real-Time, an Ancillary Service imbalance Settlement will be performed. Reliability Unit Commitment (RUC) Resources and Reliability Must-Run (RMR) Units are removed from this Ancillary Service imbalance payment for their On-Line capacity in Real-Time since making the payment and clawing it back would result in the same financial outcome but with significant changes to the Protocols. 09/19/2013 ERCOT Yes 2.1, 2.2, 3.5.2.1, 3.5.2.2, 3.5.2.3, 3.5.2.4, 3.5.2.6, 3.9, 6.3, 6.3.2, 6.4.3.1, 6.4.3.2 (delete), 6.4.3.3 (delete), 6.5.5.2, 6.5.7.3, 6.5.9.2, 6.6.1, 6.6.1.1, 6.6.1.2, 6.6.3.1, 6.6.10, 6.7.4 (new), 6.7.5 (new), 8.1.1, 8.1.1.2, 8.1.1.2.1, 8.1.1.2.1.6 (new), 8.1.1.2.1.7 (new), 8.1.1.4.4 (new), 8.1.1.4.5 (new), 9.5.3 Approved
11/20/2013

Sections 2.2 and 6.3.2(2) (partial)

06/01/2014

Phase 1: see the 11/19/13 Board Report under "Key Documents" for specific Phase 1 sections

NPRR569 Retail Clarification and Cleanup This Nodal Protocol Revision Request (NPRR) provides clarification and cleanup of current retail processes. 09/23/2013 ERCOT No 15.1.9.1, 19.3.1, 24.1.2.1, 24.1.2.2 Approved
03/01/2014
NPRR570 Reduce RTM Settlement Timeline to Operating Day Plus Five This NPRR proposes a phased approach to change the posting date for the Real-Time Market (RTM) Initial Settlement Statement from seven days after the Operating Day to five days after the Operating Day and changes the posting date of the Final Settlement Statement from the 57th day after the Operating Day to the 55th day after the Operating Day. 09/30/2013 Harika Basaran and Jim Galvin on behalf of COPS and the Communications and Settlements Working Group (CSWG) Yes 2.1, 9.5.2, 9.5.4, 9.5.5, 10.8.1.2 Approved
01/01/2014

Sections 4.2.1.2 and 9.5.4

05/01/2014

All remaining sections

NPRR571 ERS Weather-Sensitive Loads Requirements This Nodal Protocol Revision Request (NPRR) establishes rules for participation in Emergency Response Service (ERS) by Loads with Demand response capability that is highly sensitive to weather conditions. It introduces appropriate calculations for qualification, baseline definition and monitoring and verification, availability, performance, and payment of Loads driven by weather, including especially residential Loads — and provides for their participation in ERS only during ERS Time Periods that correlate to peak weather conditions (e.g., Business Hours 2 and Business Hours 3 during the June-September ERS Standard Contract Term). Qualified Scheduling Entities (QSEs) representing weather-sensitive ERS Loads would be compensated for those Resources based solely on their performance during deployment events and during unannounced testing. Because ERCOT expects this category of Resource to consist primarily of aggregations of small customer Loads, which may be subject to significant growth and/or high levels of churn, QSEs representing weather-sensitive ERS Loads would be allowed to adjust the population of their aggregations on a monthly basis during an ERS Standard Contract Term under a specified process. The NPRR also establishes a structure of payment reductions for QSEs to protect against over-stated offers or projected growth in either aggregation population or average site performance. Weather-sensitive ERS Loads would be subject to a maximum of eight deployment events of up to three hours per event during an ERS Contract Period. In addition, weather-sensitive ERS Loads are subject to up to eight ERCOT-administered unannounced tests per ERS Standard Contract Term of up to three hours, which do not reduce the ERS Load’s event time obligation. 10/02/2013 Earth Networks Yes 3.14.3.1, 3.14.3.3, 6.6.11.1, 6.6.11.2, 8.1.3.1.1, 8.1.3.1.3.1, 8.1.3.1.4, 8.1.3.2, 8.1.3.3, 8.1.3.3.1, 8.1.3.3.1 (new), 8.1.3.3.2 (new), 8.1.3.3.4 (new) Approved
06/01/2014
NPRR573 Alignment of PRC Calculation This Nodal Protocol Revision Request (NPRR) aligns the Protocols with the current calculation used in the Energy Management System (EMS) to calculate Physical Responsive Capability (PRC), and adds capacity from Primary Frequency Response-capable Wind-powered Generation Resources (WGRs) to PRC. 10/21/2013 ERCOT No 6.5.7.5 Approved
06/29/2017
NPRR575 Clarification of the RUC Resource Buy-Back Provision for Ancillary Services This Nodal Protocol Revision Request (NPRR) clarifies the use of Regulation Service by Generation Resources electing to use the Reliability Unit Commitment (RUC) Resource buy-back provision, which was added to the Protocols by NPRR416, and proposes new language to allow carrying of Regulation Service on Generation Resources exercising the RUC Resource buy-back provision upon system implementation. 10/23/2013 GDF Suez NA Inc. Yes 3.9.1, 6.4.6, 6.5.7.6.1 Approved
01/07/2014
NPRR576 Changing Non-Spin Service to be Dispatched by ERCOT (formerly "Changing Non-Spin Service to an Off-Line Service") This Nodal Protocol Revision Request (NPRR) continues to allow On-Line Non-Spin, but places it behind the High Ancillary Service Limit (HASL). This NPRR also proposes the reinstatement of a minimum offer floor for On-Line Non-Spin, but leaves the determination of its value (value of X) to TAC. 10/24/2013 GDF Suez NA Inc. Yes 2.1, 3.8.3, 3.17.3, 6.4.3.2, 6.5.7.5, 6.5.7.6.2.3, 8.1.1.2.1.3, 8.1.1.3.3, 8.1.1.4.3 Approved
06/01/2014
NPRR577 As-Built Clarification for Portion of WGR Group GREDP Evaluation Nodal Protocol Revision Request (NPRR) 425, Creation of a WGR Group for GREDP and Base Point Deviation Evaluation and Mixing Turbine Types Within a WGR, which was approved by the ERCOT Board 11/2/2011 and is currently pending implementation, revised the Protocols to allow Wind-powered Generation Resources (WGRs) meeting certain registration requirements to be evaluated for Generation Resource Energy Deployment Performance (GREDP) as groups of WGRs rather than individual WGRs. This NPRR clarifies that certain components of the GREDP report for WGRs will be evaluated at the WGR-level, rather than the WGR Group-level. 10/31/2013 ERCOT No 8.1.1.4.1 Approved
03/01/2014
NPRR578 Restores RUC Decommitment Charge Language Deleted in NPRR416 This NPRR deletes the grey box in Section 5.7.6 that would remove the Reliability Unit Commitment (RUC) Decommitment Charge upon implementation of NPRR416; and clarifies Settlement treatment of RUC-Committed blocks that span an Operating Day and are opted out. 11/06/2013 ERCOT Yes 5.5.2, 5.7.6 Approved
01/01/2014
NPRR579 Amendment to the Minimum PTP Option Bid Price Approval Timeline This Nodal Protocol Revision Request (NPRR) amends the timing of the review of the Minimum Point-to-Point (PTP) Option Bid Price by TAC and the ERCOT Board. The current language specifically indicates that action should be taken each year during the month of January. The revision removes the reference to a specific month and states that the process should instead occur "at least annually." The language is also changed to only require annual review by TAC. The ERCOT Board would still review the Minimum PTP Option Bid Price when a change is being recommended by TAC through the NPRR process. 11/06/2013 ERCOT Yes 7.7.1 Approved
01/01/2014
NPRR580 Establishment of a Rolling CRR Balancing Account Fund This Nodal Protocol Revision Request (NPRR) establishes a rolling Balancing Account Fund. 11/06/2013 ERCOT No 7.9.3.4, 7.9.3.5, 7.9.3.6 (new) Approved
01/01/2015
NPRR581 Add Fast Responding Regulation Service as a Subset of Regulation Service This Nodal Protocol Revision Request (NPRR) defines "Fast Responding Regulation Service (FRRS)" and specifies that FRRS is a subset of Regulation Service. This NPRR includes the necessary clarifications for the qualification, operation and performance monitoring of Resources providing FRRS, and also specifies a maximum amount of Regulation Service for each hour that can be provided by Resources providing FRRS. 11/06/2013 ERCOT No 2.1, 2.2, 3.16, 3.17.1, 6.5.5.2, 8.1.1.2.1.1 Approved
03/01/2014
NPRR584 Alignment with TAC Procedures to Shorten the Appeals Timeline This Nodal Protocol Revision Request (NPRR) shortens the appeals timeline for appealing a PRS action to align with the current Electric Reliability Council of Texas Technical Advisory Committee Procedures. 12/04/2013 ERCOT No 21.4.11.1 Approved
05/01/2014
NPRR586 Align Credit Lock for CRR Auctions with Transaction Submission Deadline This Nodal Protocol Revision Request (NPRR) aligns the deadline to allocate credit for a Congestion Revenue Right (CRR) Auction with the transaction submission deadline for that CRR Auction. 12/10/2013 Reliant Energy No 7.5.2 and 16.11.4.6.1 Approved
10/01/2014
NPRR587 Administrative Changes for January 1, 2014 Nodal Protocols This Nodal Protocol Revision Request (NPRR) corrects the variable definition of a bill determinant implemented with NPRR553, Monthly BLT Payment and Charge for Presidio Exception, which was approved by the ERCOT Board on November 19, 2013. 12/12/2013 ERCOT No 6.6.3.5 Approved
01/01/2014
NPRR588 Clarifications for PV Generation Resources This Nodal Protocol Revision Request (NPRR) creates a definition of PhotoVoltaic Generation Resource (PVGR), and clarifies the treatment of such Resources within these Protocols 12/17/2013 ETWG No 2.1, 2.2, 3.2.5, 3.2.6.2.2, 3.9.1, 3.10.7.2, 3.15, 4.4.9.2.3, 4.4.9.4.2, 6.5.5.2, 7.9.1.3, 8.1.1.2, 8.1.1.4.1, 14.2.1 Approved
12/10/2015

Sections 2.1 (partial) and 3.10.7.2(11)

02/10/2016

All remaining sections

NPRR589 Ancillary Service Offers in the Supplemental Ancillary Services Market This Nodal Protocol Revision Request (NPRR) adds language to the Supplemental Ancillary Services Market (SASM) timeline to allow Qualified Scheduling Entities (QSEs) to submit Ancillary Service Offers after notification of the need to run a SASM. 12/30/2013 QMWG No 5.2.2.2, 6.4.8.2, 6.4.8.2.1, 6.5.9.3.3, 6.7.2 Approved
06/01/2014

All sections except for Section 6.7.2

09/23/2015

Section 6.7.2

NPRR590 Inclusion of WSL in the Default Uplift Invoice Allocation This Nodal Protocol Revision Request (NPRR) updates the Default Uplift Invoice allocation process to incorporate Wholesale Storage Load (WSL) volumes in order to equitably distribute costs to the market in case of a market shortfall; and corrects the definition for the variable MEBL. 12/31/2013 ERCOT No 6.6.3.1, 9.19.1 Approved
05/01/2014
NPRR591 As-Built Clarification and Corrections Related to NPRR568 and NPRR555 This NPRR proposes changes that clarify ERCOT’s intended implementation of the Settlement formulas in NPRR568 and that align the Protocols with the Settlement mechanisms that ERCOT’s system design and requirements analysis has concluded are essential to implement NPRR568. In effect this NPRR provides "as-built" modifications to the requirements of NPRR568. This NPRR proposes the following clarifying and corrective language in Section 6.7.4: 1) Repairs an erroneous reference made in paragraph (3); 2) Details the Settlement inputs to the Off-Line reserve calculation that will be utilized in Phase 1 implementation of NPRR568 in lieu of the RTOFF30 telemetry, which will be available in Phase 2; 3) Removes Real-Time On-Line Non-Spin Schedule for Generation Resources (RTOLNSRS) from the calculation of the On-Line and Off-Line reserves because it has no impact on the calculated result for the Real-Time Ancillary Service imbalance quantity (as currently written, it is added into the Qualified Scheduling Entity’s (QSE’s) value for On-Line capacity (RTOLCAP) but subsequently subtracted back out of the value during the calculation of the QSE’s imbalance quantity (RTASOLIMB), thus having no impact on the calculated value); 4) Clarifies intermediate calculations for QSE-level data that ERCOT, through its design discussions, has determined must be performed within the Settlement system rather than in the Market Management System (MMS), thereby providing additional billing determinants necessary for shadow Settlement (calculated values include: RTASOFF, RTRUCNBBRESP, RTNCLRNSRESP, RTCLRNSRESP, RTRMRRESP, RTNCLRRRS, RTOLHSL, RTMGQ, RTCLRREG, RTCLRRRS, RTNCLRNS, RTCLRNS, RTRUCRESP, RTCLRNPF, and RTCLRLSL); and 5) Makes additional clarifying edits to various variable definitions, in light of the additional settlement data points. This NPRR also corrects one reference to "OFF10" in Section 8.1.1.2.1.7 that should have been a reference to "OFF30." In addition, this NPRR updates grey-boxed language associated with NPRR555 to reflect the subsequent approval of NPRR568. In new Section 6.4.3.1.1, RTM Energy Bid Criteria, references to Protocol sections that were deleted by NPRR568 have been deleted. Also, in Section 6.5.7.6.2.3, references to "ONRL Resource Status" have been deleted from the NPRR555 grey box, as this Resource Status will not be used by Load Resources providing Non-Spin following NPRR555 implementation. 01/09/2014 ERCOT Yes 6.4.3.1.1, 6.5.7.6.2.3, 6.7.4, 8.1.1.2.1.7 Approved
03/01/2014
NPRR592 Clarification of Meter Repair Timelines for RTM Settlements This Nodal Protocol Revision Request (NPRR) provides clarification that ERCOT may reduce the meter repair timeline from twelve to six hours if the meter data is required for Real-Time Market (RTM) Settlements on the same day or an upcoming non-Business Day. 01/24/2014 ERCOT No 10.8.1.2 Approved
05/01/2014
NPRR593 Clarification of Generic Transmission Limit Posting Requirements This Nodal Protocol Revision Request (NPRR) creates and defines the term "Generic Transmission Constraint" (GTC) to distinguish between the transmission constraint itself and the value of the transmission constraint’s Generic Transmission Limit (GTL); and modifies the definition of GTL to be consistent with this clarification. This NPRR also clarifies the posting requirements for GTCs and GTLs, as current Protocol language does not specify what GTC- or GTL-related information should be posted on the Market Information System (MIS). In practice, ERCOT posts only the predicted GTL values based on its Day-Ahead analysis. ERCOT has not posted background details on the GTCs it uses currently; given that they are artifacts of the Zonal market and are considered common knowledge. As additional GTCs are added to the ERCOT system, it is important that the details behind a GTL and its derivation are made transparent to the Market before the GTC goes into service. 01/24/2014 ERCOT No 2.1, 2.2, 3.10.7.6 Approved
09/01/2014
NPRR594 Clarifications to the ERCOT Fee Schedule and the Point-to-Point Option Award Fee This Nodal Protocol Revision Request (NPRR) retitles the Point-to-Point (PTP) Option Award Fee to clarify that it is not a fee for use of ERCOT systems and equipment and removes it from the ERCOT Fee Schedule. This NPRR also removes the Nodal Implementation Surcharge from the ERCOT Fee Schedule, as this fee is no longer being charged as of Operating Day 1/13/13. 01/27/2014 ERCOT No 2.1, 7.5.2, 7.7, 7.7.1, 7.9.3.4, 7.9.3.5, 9.8 Approved
05/01/2014
NPRR595 RRS Load Resource Treatment In ORDC This Nodal Protocol Revision Request (NPRR) provides that Load Resources providing Responsive Reserve Service (RRS) should be credited/charged based on their telemetered Load Consumption as opposed to the currently prescribed methodology of using the telemetered RRS Ancillary Service Schedule. 01/29/2014 Tenaska Power Services Co. No 6.7.4 Approved
10/22/2015
NPRR596 External Load Serving Entities This Nodal Protocol Revision Request (NPRR) proposes the creation of a new type of Load Serving Entity (LSE) called an "External Load Serving Entity" (ELSE). The addition of this new LSE type is intended to ensure appropriate Settlement treatment of consumption by Customers who are physically connected to the ERCOT System through a Transmission and/or Distribution Service Provider (TDSP) point of interconnection but are located in an electric utility’s, Municipally Owned Utility’s (MOU’s), or Electric Cooperative’s (EC’s) service area in which that electric utility, MOU or EC has the exclusive right to serve the Customer and does not own or operate any Facilities connected to the ERCOT System. The NPRR will correct past instances in which Entities did not meet the Protocol definition of LSE and therefore created alignment issues in properly accounting for the Load of certain Customers, but will also address new situations in which Generation Resources connect to Competitive Renewable Energy Zone transmission lines and the location of the Resource Entity’s asset is physically located in an electric utility’s, MOU’s or EC’s service area in which that electric utility, MOU or EC does not own or operate any Facilities connected to the ERCOT System. The NPRR is also meant to establish the Comision Federal de Electricidad (CFE) as an ELSE since AEP Energy Partners, Inc. has been authorized to serve Customers in El Mulato, Mexico using ERCOT Generation Resources. 01/29/2014 ERCOT Yes 2.1, 2.2, 9.17.1, 10.2.2, 10.9, 11.1.9, 13.1.1, 16.3, 16.3.1.1, 16.3.5, 16.4, 16.6, Approved
05/01/2014
NPRR597 Utilize Initial Estimated Liability (IEL) Only During Initial Market Activity This Nodal Protocol Revision Request (NPRR) clarifies that the Initial Estimated Liability (IEL) component of the Estimated Aggregate Liability (EAL) calculation is to be used only during the first 40 days of a Counter-Party’s activity in ERCOT markets. 02/06/2014 ERCOT No 16.11.4.3 Approved
06/13/2015
NPRR598 Clarify Inputs to PRC and ORDC This Nodal Protocol Revision Request (NPRR) aligns the inputs to Physical Responsive Capability (PRC) and ORDC; stipulates the treatment of Off-Line capacity during scarcity conditions; and also proposes the following changes: · Removes STARTUP and SHUTDOWN status from PRC and ORDC calculations; · Sets Real-Time Off-Line available reserves used in the ORDC calculation to zero when SCED snapshot of the PRC becomes less than or equal to 2,300 MW which is the PRC MW at which Energy Emergency Alert (EEA) Level 1 is initiated; and · Changes the Load Resource Responsive Reserve (RRS) schedule used in ORDC to Max { min{Telemetered MW, RRS schedule, max[MPC - LPC - (Regulation responsibility + Non-Spin responsibility + Down Regulation responsibility), 0]}, 0} 02/12/2014 ERCOT Yes 6.5.7.3, 6.5.7.5, 6.7.4 Approved
05/01/2014
NPRR599 Removal of FGR-Specific Settlement Language As a result of there being no Flowgate Rights (FGRs) in the Nodal Protocols, language regarding the settlement of FGRs has become misaligned with the current market design. This Nodal Protocol Revision Request (NPRR) removes the substance of sections 7.9.1.4 and 7.9.2.4, which are specific to the settlements of FGRs. The Protocols sections are retained so that appropriate Settlement language can be more easily introduced at such time that the stakeholders determine that an FGR should be defined. 02/25/2014 ERCOT No 7.9.1.4, 7.9.2.4 Approved
07/01/2014
NPRR600 Removal of Outdated Language to Scheduling and Operations of BLT Section This NPRR proposes deleting paragraph (3) of Section 6.5.9.5.2, which describes the situation in which ERCOT generators could be ioslated in the event of a Block Load Transfer that transferred ERCOT Load to a Non-ERCOT Control Area, an event that can no longer occur. 02/28/2014 ERCOT No 6.5.9.5.2 Approved
07/01/2014
NPRR601 Inclusion of Incremental Exposure in Mass Transitions to Counter-Parties that are Registered as QSEs and LSEs and Provide POLR Service This NPRR revises the calculation of credit exposure for Counter-Parties that are registered as Qualified Scheduling Entities (QSEs) and Load Serving Entities (LSEs) and provide Provider of Last Resport (POLR) service as a result of Mass Transition of a defaulting Counrt-Party with Load. 03/03/2014 ERCOT No 16.11.4 Approved
06/13/2015
NPRR602 Exemption for Sharyland Brady Load Transition A portion of Sharyland Load (Brady area Load) that is entering retail competition after May 1, 2014 currently resides in the LCRA Load Zone and is subject to the Non-Opt-In Entity (NOIE) Load Zone three-year restriction, which prevents the Load from moving into a Competitive Load Zone with the rest of the Sharyland Load. This NPRR exempts the Sharyland Brady Load from the three-year NOIE Load Zone restriction and allows it to merge into a Competitive Load Zone upon transition to retail choice after May 1, 2014. 03/10/2014 Reliant Energy Retail Services Yes 3.4.2 Approved
05/01/2014
08/01/2014

Sunset

NPRR603 ERS Settlement and Service Types This NPRR clarifies several Protocol sections related to ERS as follows: · Clarifies that there are four ERS service types following the approval of NPRR564, Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions, and NPRR571: Weather Sensitive ERS-10, Non-Weather Sensitive ERS-10, Weather Sensitive ERS-30 and Non-Weather Sensitive ERS-30. This also results in Protocol language that is easier to maintain going forward; · Corrects the ERS Settlement formulas relating to amounts procured per Qualified Scheduling Entity (QSE) in Section 6.6.11.1 (SPAMT and COMPAMT); · Clarifies the deployment duration time for Weather-Sensitive ERS Loads; andClarifies ERS Resource obligations during an ERS deployment. 03/10/2014 ERCOT Yes 2.1, 3.14.3.1, 3.14.3.2, 3.14.3.3, 3.14.3.4, 6.6.11.1, 6.6.11.2, 8.1.3.1.1, 8.1.3.1.2, 8.1.3.1.3.1, 8.1.3.1.3.3, 8.1.3.1.4, 8.1.3.2, 8.1.3.3, 8.1.3.3.1, 8.1.3.3.2, 8.1.3.3.1, 8.1.3.3.4, Approved
05/01/2014
NPRR604 Modification to Submission Timeline for Changes to Emergency Operations and Weatherization Plans This Nodal Protocol Revision Request (NPRR) modifies the requirement that Resource Entities submit any changes to their emergency operations or weatherization plans from 30 days to twice per year. The twice-a-year submission requirement would align the Section 3.21 requirements with Section 22, Attachment K, Declaration of Completion of Generation Resource Weatherization Preparations, which is required to be submitted no later than June 1 and December 1 for the applicable summer and winter operating periods. The revisions proposed in this NPRR are consistent with a proposed amendment before the Public Utility Commission of Texas (PUCT) to P.U.C Subst. R. 25.53, Electric Service Emergency Operations Plans (Project 39160, PUC Rulemaking Proceeding Relating to Electric Service Emergency Operations). 03/13/2014 NRG Texas, LLC No 3.21 Approved
09/01/2014
NPRR606 Removal of Risk Management Verification Fee The Protocols currently allow ERCOT to assess a fee to eligible Counter-Parties for all or part of the costs of verifying the risk management framework as set forth in Section 16.16.3. The ability to charge and collect a separate fee to account for ERCOT’s risk management verification costs was added to the Protocols with NPRR 438, Additional Minimum Counter-Party Qualification Requirements, Including Risk Management Capability Requirements, which was approved by the ERCOT Board in July 2012. The Protocol language added by NPRR438, however, is not accompanied by a specific fee amount or approved methodology for calculating the fee. As noted in the Impact Analysis for NPRR438, system implementation costs for NPRR438 were immaterial, and the ongoing staffing costs related to oversight of risk management verification should not exceed one Full-Time Equivalent. Following discussion at the November 18, 2013 Finance and Audit Committee meeting, there was consensus that because the overall expenses related to risk management verification are minor, it would be more practical to eliminate the fee and include this expense within ERCOT’s Operations and Maintenance budget. This NPRR removes the language establishing the risk assessment fee from Section 16.16.3. 03/17/2014 ERCOT No 16.16.3 Approved
07/01/2014
NPRR607 Short-Term System Adequacy Report Posting Modification Following system implementation of NPRR479, Hourly Reporting of Resource Outaged Capacity, ERCOT Staff observed that Short-Term Adequacy Reports related to aggregate Resource Outage levels were posted hourly but without the capability to post intra-hour reports based on "detection of a change in status" as required by Section 3.2.3. The current hourly implementation exceeds the parameters of subsection (d)(2) of P.U.C Subst. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region, which requires daily postings. This NPRR aligns the Protocols with current ERCOT business practice for posting the Short-Term System Adequacy Report by removing language requiring ERCOT to post the report upon detection of a change to Resource Status that changes the availability of a Resource. 03/24/2014 ERCOT No 3.2.3 Approved
07/01/2014
NPRR608 Alignment of Transaction Timing to the PUCT Performance Measures This Nodal Protocol Revision Request (NPRR) aligns ERCOT’s processing time with the transactional timing in the Public Utility Commission of Texas’ (PUCT’s) Performance Measures. 03/26/2014 ERCOT No 15.1.1.7, 15.1.4.1, 15.1.4.2, 15.1.4.3, 15.1.4.5, 15.1.4.7.1, 15.1.4.7.2, 15.1.5.2, 15.1.5.6, 15.3 Approved
09/01/2014
NPRR609 ERCOT System Administration Fee and User Fees This Nodal Protocol Revision Request (NPRR) clarifies the distinction between the ERCOT System Administration fee approved by the Public Utility Commission of Texas (PUCT) and user fees approved by the ERCOT Board. 03/26/2014 ERCOT No 9.5.3, 9.16, 9.16.1, 9.16.2, 9.16.3, 9.19, ERCOT Fee Schedule Approved
07/01/2014
NPRR610 Eliminate Late Fees and Late Fee Invoices This Nodal Protocol Revision Request (NPRR) eliminates late fees and related Late Fee Invoices. The imposition of late fees has not been effective in deterring late payments by Settlement Invoice Recipients. The late fees charged have not exceeded $100. Section 16.11.6.2, ERCOT’s Remedies for Late Payments by a Market Participant, sufficiently addresses late payments. 03/26/2014 ERCOT No 9.1.2, 9.7.3, 9.7.4, 9.19, 9.19.2.2, 20.9.1, ERCOT Fee Schedule Approved
07/01/2014
NPRR611 Modifications to CDR Wind Capacity Value This Nodal Protocol Revision Request (NPRR) proposes modifications to the Capacity, Demand, and Reserves (CDR) methodology for calculating the capacity value of wind during peak Load periods. 03/26/2014 ERCOT No 3.2.6.2.2 Approved
11/01/2014
NPRR612 Reduction of Cure Period Subsequent to Event of Default This Nodal Protocol Revision Request (NPRR) reduces the cure period for failure to make payment or transfer funds, provide collateral or designate/maintain an association with a Qualified Scheduling Entity (QSE), to one Business Day subsequent to written notification of the breach. In addition, the NPRR clarifies that an Invoice payment from available security will be considered a Late Payment per Protocol Section 16.11.6; it eliminates discrepancies between Protocol and Standard Form Agreement language; and aligns terminology in Protocol Section 16. 03/26/2014 ERCOT No 9.11, 9.11.3, 9.13.2.3, 9.19, 16.11.6, 16.11.6.1, 16.11.6.1.1, 16.11.6.1.2, 16.11.6.1.4, 16.11.6.1.6, 16.11.6.2, 16.11.6.2.1, 16.11.6.2.2, 16.11.6.2.3, 16.11.6.2.4, 16.16.1. Approved
04/01/2015
NPRR613 Clarification of Fuel Adder into the Mitigated Offer Cap This Nodal Protocol Revision Request (NPRR) clarifies the implementation of the fuel adder into the Mitigated Offer Cap as provided in NPRR485, Clarification for Fuel Adder Provisions, approved by ERCOT Board of Directors 11/13/2012, and as planned to take effect upon ERCOT’s implementation of the automated solution of NPRR485. Additional Background: NPRR485 introduced the concept of a verifiable fuel adder to be used in the calculation of the Mitigated Offer Cap and Verifiable Startup and minimum energy costs. When NPRR485 was approved on November 13, 2012, the specific calculation of how the fuel adder would be used in the Mitigated Offer Cap was not yet determined. Per Appendix 6 and 7 of the Verifiable Cost Manual, as an interim step and manual work around, Quick Start Generation Resources (QSGRs) had the fuel adder incorporated into their verifiable Incremental Heat Rate (IHR) points. All other Generation Resources were not eligible to get the fuel adder until ERCOT determined the automated solution needed to incorporate the fuel adder into the Mitigated Offer Cap and implemented that solution into its systems. 03/26/2014 ERCOT No 4.4.9.4.1 Approved
07/01/2014
NPRR614 Clarification of Telemetered Value of HSL for Combined Cycle Generation Resources providing RRS This Nodal Protocol Revision Request (NPRR) clarifies that Combined Cycle Generation Resources providing Responsive Reserve (RRS) may adjust the telemetered High Sustained Limit (HSL) in compliance with Resource limits in providing Ancillary Services. 04/11/2014 EDF Trading North America LLC No 6.5.5.2 Approved
10/01/2014
NPRR615 PVGR Forecasting This NPRR establishes a definition for Short-Term PhotoVoltaic Power Forecast (STPPF) and clarifies the use of the resulting forecast within the Protocols. It is requested that WMS recommend a value for X in Section 4.2.3. 04/16/2014 ETWG No 2.1, 2.2, 3.9.1, 3.13, 4.2.3, 5.7.4, 5.7.4.1.1, 6.3.1 Approved
12/10/2015

Sections 2.1 and 4.2.3

02/10/2016

All remaining sections

NPRR616 Clarification of Notification for Undeliverable Ancillary Services This Nodal Protocol Revision Request (NPRR) clarifies that the ERCOT Operator has discretion as to when to send a notification to affected Qualified Scheduling Entities (QSEs) when an Ancillary Service is found to be undeliverable due to infeasibility during a RUC Study Period. 04/18/2014 Resmi Surendran No 5.5.2, 6.4.8.1.2 Approved
09/01/2014
NPRR617 Energy Offer Flexibility This Nodal Protocol Revision Request (NPRR) seeks to correct inconsistencies regarding the restrictions on energy offers in the Day-Ahead Market (DAM). 04/22/2014 Calpine No 4.4.9.2.1, 4.6.2.3, 4.6.2.3.1, 5.7.1.1, 5.7.3 Approved
06/22/2016
NPRR618 Market Notices for Resettlement Statements and True-up Settlement Timeline Changes This Nodal Protocol Revision Request (NPRR) replaces requirements to post Notices on the Market Information System (MIS) for communication of Day-Ahead Market (DAM) and Real-Time Market (RTM) Resettlements and True-Up Settlement timeline changes with Market Notices. 04/29/2014 ERCOT No 9.2.6, 9.5.7, 9.5.9 Approved
09/01/2014
NPRR619 Minimum Quantity for DAM PTP Obligation Bids This NPRR adds a one-tenth of one Megawatt (MW) minimum quantity for Point-to-Point (PTP) Obligation bids into the Day-Ahead Market (DAM). ERCOT has observed thousands of zero MW quantity PTP Obligation bids submitted daily, which represent a strain on ERCOT software and systems. This contributed to production issues experienced on February 25, 2014. Since the Protocols explicitly impose minimum bid/offer quantities for DAM Energy Bids and DAM Energy-Only Offers, ERCOT believes it is also appropriate to specify a minimum bid quantity for PTP Obligations. The proposed minimum bid quantity of one-tenth MW is the value of the smallest bid increment that ERCOT’s systems currently accept. The system change associated with this clarification will exclude zero MW bids from the DAM, which will preserve system resources for transactions that can be awarded. 04/30/2014 ERCOT No 4.4.6.1 Approved
12/08/2014
NPRR620 Collateral Requirements for Counter-Parties with No Load or Generation This Nodal Protocol Revision Request (NPRR) revises the calculation of credit exposure for Counter-Parties that represent neither Load nor generation by adjusting the M1 factor for forward exposure risk to reflect the fact that these Counter-Parties do not have Mass Transition risk, reducing the 40-day "look back" period for certain exposure components to 20 days and specifying a Minimum Current Exposure (MCE) for these Counter-Parties that is also used as the Initial Estimated Liability. 04/30/2014 ERCOT No 16.11.4.1, 16.11.4.2, 16.11.4.3 Approved
06/02/2019
NPRR621 Counter-Party Specific Calculations for M1 Variable This Nodal Protocol Revision Request (NPRR) replaces the fixed value for M1 with a calculation that will be specific to each Counter-Party. This revision defines M1 as the minimum of the existing value of 20 and the sum of two components: · M1a -- Time period required to cover any termination event · M1b -- Time period to cover Mass Transitions onlyThe M1a component is applicable to all Counter-Parties. However, the M1b component will be applicable only to Counter-Parties with Load or generation. 04/30/2014 ERCOT No 16.11.4.1, 16.11.4.3 Approved
09/01/2014
NPRR622 Replace Planning and Operations Information Website References with MIS This Nodal Protocol Revision Request (NPRR) replaces references to the Planning and Operations website with the Market Information System (MIS) location in preparation of the decommissioning of the Planning and Operations Information website via Project PR066-01, Planning Site Transition to MIS. 04/30/2014 ERCOT No 1.3.3 Approved
10/16/2014
NPRR624 Generation Resource Operational Designation Transparency This Nodal Protocol Revision Request (NPRR) requires: (a) ERCOT to send a Market Notice regarding Generation Resource operational designation changes, and (b) the posting of a Notification of Suspension of Operations in one additional instance. 05/12/2014 GATF No 3.14.1.9 Approved
09/01/2014
NPRR626 Reliability Deployment Price Adder (formerly "ORDC Price Reversal Mitigation Enhancements") Intends to mitigate the price reversal/suppression associated with the deployment of Load Resources and/or other out-of-market reliability deployments that may inappropriately reduce the total Real-Time price in times of scarcity. 05/16/2014 Luminant Energy Company, LLC Yes 2.1, 3.5.2.1, 3.5.2.2, 3.5.2.3, 3.5.2.4, 3.5.2.5, 3.5.2.6, 6.3, 6.3.2, 6.5.7.3, 6.5.7.3.1, 6.5.9.2, 6.6.1, 6.6.1.1, 6.6.1.2, 6.6.3.1, 6.7.4 Approved
10/01/2014

Section 6.4.4.1

06/25/2015

All remaining sections

NPRR628 Notification of Financial Impact of Settlement Disputes This Nodal Protocol Revision Request (NPRR) aligns the Protocols with the current practice for reporting on the financial impact of Settlement disputes and requires ERCOT to provide a report on the Market Information System (MIS) containing the status of each dispute submitted. 05/21/2014 Jim Galvin on behalf of the Communications and Settlements Working Group (CSWG) No 9.14.4, 9.14.4.2.2, 9.14.4.2.3 Approved
09/01/2014
NPRR629 Removal of Black Start Plan Posting Requirement This Nodal Protocol Revision Request (NPRR) removes the Black Start plan posting requirement from the Protocols as this requirement is being relocated to the Nodal Operating Guides. 05/22/2014 ERCOT No 6.5.9.6 Approved
09/01/2014
NPRR630 As-Built Clarifications to Settlements of ORDC This Nodal Protocol Revision Request (NPRR) defines the System-Wide Discount Factor and clarifies the role of this factor in the formulas used in the Settlements of the Operating Reserve Demand Curve (ORDC). This NPRR also corrects an error in the formula for calculating the Real-Time Ancillary Service Imbalance Amount in Section 6.7.4. ERCOT notes that these Settlement formulas were not available prior to the design and implementation of ORDC Settlements and therefore were not included in NPRR 568, which created the ORDC. The revised formulas, which have been vetted by the Communications and Settlements Working Group (CSWG) and discussed with participants in ORDC training, will provide additional clarity needed for Market Participants to effectively shadow ORDC Settlement calculations. 05/27/2014 ERCOT No 6.5.7.3, 6.7.4, 9.5.3 Approved
09/01/2014
NPRR631 Corrections to Definition of Credible Single Contingency This NPRR seeks to restore proposed changes to NPRR540 that were represented in the 9/9/13 Constraint Management Plan Revision Request Workshop comments and endorsed by ROS as noted in the 9/16/13 ROS comments, but not included in the version recommended for approval by PRS in the 10/17/13 PRS Report, which was subsequently approved. As explained below, ERCOT believes the omission of these proposed changes from NPRR40 was inadvertent. The language ERCOT is specifically seeking to address is the definition of Credible Single Contingency, item (4). This item requires ERCOT to consider "G-1 + N-1" contingent events in Real-Time as well as other operational assessments, including Outage coordination. In practice, ERCOT does not consider such events in Real-Time operations. Rather, these contingent events have only been considered applicable in the Planning Horizon. After this item (4) language was included in the version of NPRR540 recommended for approval by PRS on 7/18/13, ERCOT submitted comments on 8/9/13 explaining that "G-1 + N-1" contingent events have only been considered applicable in the Planning Horizon, and since considerations for Credible Single Contingencies are contained in the Planning Guide, this language should be removed from the Protocols. ERCOT’s 8/12/13 comments on NPRR540 added that if the definition of Credible Single Contingency were to include this language, there could be impacts to ERCOT Energy and Market Management Systems. Following these comments, PRS tabled NPRR540 to allow the 9/9/13 Constraint Management Plan Workshop to be held. At the workshop, this issue was discussed, and the 9/9/13 Constraint Management Plan Workshop comments reflected a consensus to endorse NPRR540 as amended by the 8/13/13 CenterPoint Energy comments, which incorporated ERCOT’s revisions to the definition of Credible Single Contingency, and as revised by the workshop. However, at the 10/17/13 PRS meeting, PRS recommended to endorse the 7/18/13 PRS Report, which did not include the revisions contained in the 9/9/13 Constraint Management Plan Workshop comments. This version was subsequently approved by the ERCOT Board upon recommendation by TAC. By reaching back to the 7/18/13 PRS Report, the critical revisions to the definition of Credible Single Contingency were not included in NPRR540 as approved. ERCOT believes it was not the intent of PRS to omit these edits and proposes restoring these revisions in this NPRR. Based on the current definition of Credible Single Contingency, it appears that ERCOT is out of compliance with the requirements contained in that definition, because ERCOT does not consider "G-1 + N-1" contingent events in Real-Time operations. This NPRR will realign the Protocols with actual practice. ERCOT will also file a Notice of Protocol Violation with the Public Utility Commission of Texas (PUCT) to address the lack of alignment between the current Protocol definition of Credible Single Contingency and ERCOT’s actual Real-Time operations. 06/17/2014 ERCOT Yes 2.1 Approved
08/13/2014
NPRR632 Eliminate Manual Calculations When Producing 4-CP Billing Determinant Data This NPRR eliminates manual calculation of Transmission and/or Distribution Service Provider (TDSP) 4-Coincident Peak (4-CP) data using lower-level non-aggregate Electric Service Identifier (ESI ID) data and requires instead the use of Settlement system aggregate data. This NPRR also clarifies treatment of Block Load Transfer (BLT) Load. 06/23/2014 ERCOT No 9.17.1 Approved
11/01/2014
NPRR633 Remove Requirement for Confirmation of Ancillary Service Test Using Primary and Secondary Voice Circuits This Nodal Protocol Revision Request (NPRR) removes the requirement to test the primary and secondary voice circuits for Ancillary Service qualification tests. This requirement is not needed since ERCOT performs tests on voice circuits with any new Qualified Scheduling Entity (QSE) to establish their operations for the first time. ERCOT brought this language as a discussion item to the 3/26/14 joint Performance Disturbance Compliance Working group (PDCWG) and QSE Managers Working Group (QMWG) meeting to solicit stakeholder feedback on this issue. The consensus within both groups was that the language is outdated and not needed as a part of Ancillary Service qualification and testing. 06/23/2014 ERCOT No 8.1.1.2.1.1, 8.1.1.2.1.2, and 8.1.1.2.1.3 Approved
11/01/2014
NPRR634 Clarification for the Reporting of Demand Response This Nodal Protocol Revision Request (NPRR) clarifies that the reporting of Demand response participation, including Emergency Response Service (ERS), Demand response pilot projects, and Load Resources providing Ancillary Services, will be mapped to the 2003 ERCOT Congestion Management Zones instead of the current Load Zones to ensure confidentiality of MW quantities associated with Non Opt-In Entity (NOIE) participation. Without this revision, Qualified Scheduling Entity (QSE)-specific quantities of self-arranged Ancillary Services could be disclosed before the time permitted under paragraph (f) of Section 1.3.1.1, Items Considered Protected Information. This NPRR also changes the source of the data that will be used to create the reports for Load Resources. This change was necessary to account for capacity that is self-arranged by QSEs and not procured through the Day-Ahead Market (DAM) for Ancillary Services. 06/24/2014 ERCOT No 3.10.7.2.1 Approved
11/01/2014
NPRR635 Clarification of Congestion Revenue Right Source/Sink Points This Nodal Protocol Revision Request (NPRR) will establish that Resource Settlement Points are retained in ERCOT Congestion Revenue Right (CRR) and Day-Ahead Market (DAM) models until there is no further Resource association with the Settlement Point. 06/25/2014 Boston Energy No 3.10.3, 3.10.3.1 Approved
11/01/2014
NPRR636 Cleanup to Remove Software Documentation Posting Requirement and Align Three-Part Supply Offer Language This Nodal Protocol Revision Request (NPRR):1. Removes a requirement to post software documentation and code related to validation rules, to the extent that this is not Protected Information. This posting requirement was applicable prior to Nodal go-live, when ERCOT was posting requirements documents for Market Participants to prepare their systems for Nodal go-live, but there is no relevant documentation currently being produced by our vendors which is not Protected Information. However, ERCOT does provide relevant documentation for business rule validation in the "Market Submission Validation Rules" document on the Market Information System (MIS) Secure Area and for the technical validation rules, the Extensible Markup Language (XML) specifications are posted on the ERCOT website; and2. Aligns Section 4.4.9.2.1 with the limitations on modifying a Startup Offer or Minimum-Energy Offer for a Day-Ahead Market (DAM) Committed Interval which were implemented with NPRR321, Allow Change to Energy Offer Curve MW Amounts in the Adjustment Period (formerly "Allow Change to Energy Offer Curve MW Amounts in the Adjustment Period for Qualifying Facilities, in Section 4.4.9.3, Energy Offer Curve. 06/27/2014 ERCOT No 4.2.4, 4.4.9.2.1, 5.3, and 6.3.4 Approved
11/01/2014
NPRR637 Clarification of ERS Language and ERCOT Process for Co-located Resources This Nodal Protocol Revision Request (NPRR) provides for changes to Emergency Response Service (ERS) including the following: 1. Clarifies procedures for ERS procurement. 2. Clarifies procedures for classification and treatment of ERS. Generators particularly when they are co-located with an ERS Load. 3. Clarifies procedures for calculating ERS Resource Availability when the obligation of one or more ERS Resources is exhausted. 4. Clarifies rules for testing of ERS Resources.Clarifies procedures for payment reduction for Weather Sensitive and Non-Weather Sensitive ERS Resources. 07/02/2014 ERCOT No 3.14.3.1, 8.1.3.1.2, 8.1.3.1.3.3, 8.1.3.1.3.4, 8.1.3.2, 8.1.3.3.1, 8.1.3.3.2 Approved
11/01/2014
NPRR639 Correction to Minimum Current Exposure The Minimum Current Exposure (MCE) calculation, which is part of the Total Potential Exposure (TPE) credit evaluation, fails to recognize net purchases of firm physical power, which is a crucial and widely utilized means to fulfill Load serving obligations. Not recognizing net purchases of firm physical power causes the MCE to inaccurately overstate the actual credit risk posed to the market and unfairly penalizes Market Participants who prudently hedge their Load positions. 07/03/2014 Reliant Energy Retail Services No 16.11.4.1 Approved
06/13/2015
NPRR640 As-Built Clarification of Load Resource Participation in SCED and Non-Spin Qualification This Nodal Protocol Revision Request (NPRR) clarifies that a Qualified Scheduling Entity (QSE) representing a Load Resource and submitting a bid to buy for participation in Security-Constrained Economic Dispatch (SCED) must also represent all Load Serving Entities (LSEs) for all sites within the Load Resource. The NPRR also aligns Section 8.1.1.2.1.3 with the current requirement that a Load Resource may only qualify to provide Non-Spinning Reserve (Non-Spin) if they are a Controllable Load Resource qualified to participate in SCED. 07/10/2014 ERCOT No 3.6.1, 8.1.1.2.1.3 Approved
01/01/2015
NPRR641 Season Definition Change for SwitchableResources Reporting Unavailable Capacity This Nodal Protocol Revision Request (NPRR) replaces the phrase "Peak Period," used in Section 16.5.4 for Resource Entity reporting on Switchable Generation Resource availability, with the existing defined term, Peak Load Season. 07/10/2014 ERCOT No 16.5.4 Approved
01/01/2016
NPRR642 Constraint Management During Energy Emergency Alerts This Nodal Protocol Revision Request (NPRR) seeks to improve management of congestion during an Energy Emergency Alert (EEA) by proposing: 1. Language that provides a mechanism for ERCOT Operations to manage constraints in EEA 2 or 3 to higher Facility ratings when applicable for those constraints identified as limiting generation output; and 2. Language that reconsiders use of double-circuit contingencies during emergency operations based on ERCOT Transmission Grid conditions. 07/23/2014 ERCOT No 2.2, 6.5.9.3.3, 6.5.9.4 Approved
05/01/2015
NPRR643 Clarification of MIS Postings for Outages Upon Implementation of SCR774, Enhancement to Outage Scheduler and Reports This Nodal Protocol Revision Request (NPRR) clarifies how ERCOT will process Market Information System (MIS) postings concerning Outages upon system implementation of System Change Request (SCR)774, Enhancement to Outage Scheduler and Reports. 07/30/2014 ERCOT Yes 3.1.5.7 and 3.1.5.13 Approved
11/01/2014

All sections except for Section 3.1.5.13(1)(c)

06/25/2015

Section 3.1.5.13(1)(c)

NPRR644 Operating Reserve Demand Curve Phase 2 Revisions This Nodal Protocol Revision Request (NPRR) revises previously approved Protocol language related to Operating Reserve Demand Curve (ORDC) Phase 2. The language to implement ORDC Phase 2 is being revised in order to streamline the validation process of the telemetered OFF10 and OFF30 values. Correspondingly, the qualification and testing procedures are bolstered in the interest of a more efficient overarching process. 07/30/2014 ERCOT No 6.5.5.2, 8.1.1.2, ,8.1.1.2.1, 8.1.1.2.1.6, 8.1.1.2.1.7, 8.1.1.4.4, 8.1.1.4.5 Approved
11/01/2014
NPRR645 Real-Time On-Line Capacity Revisions This Nodal Protocol Revision Request (NPRR) modifies NPRR568, Real-Time Reserve Price Adder Based on Operating Reserve Demand Curve, Phase 1 inputs to the calculation of Real-Time On-Line Capacity by including On-Line Non-Spinning Reserve (Non-Spin) in start-up mode, eliminating under generation intervals, and capping Real-Time Metered Generation (RTMG) at the High Sustained Limit (HSL) to prevent negative On-Line capacity for Wind-powered Generation Resources (WGRs). Additionally, resource-level bill determinants for adjusted HSL (Real-Time Adjusted On-Line High Sustained Limit for the Resource (RTOLHSLRA)) and RTMG (Real-Time Adjusted Metered Generation per QSE per Settlement Point per Resource (RTMGA)) will be provided for transparency. Additionally, new Resource-level bill determinants have been added to the Phase 2 grey box language to better represent the manner of implementation. 07/30/2014 ERCOT No 6.7.4 Approved
06/25/2015
NPRR646 Emergency Operations Settlement for CFC (formerly "Emergency Operations Settlement for CFC Testing") This Nodal Protocol Revision Request (NPRR) addresses how Qualified Scheduling Entities (QSEs) will be Settled during unannounced CFC testing and adds the CFC definition to the Protocols. 07/30/2014 ERCOT No 2.1, 2.2, 6.6.5.1, 6.6.9 Approved
03/01/2015
NPRR647 CRR Auction Shadow Price Transparency This Nodal Protocol Revision Request (NPRR) requires ERCOT to post the Congestion Revenue Right (CRR) Auction Shadow Prices to the Market Information System (MIS) Public Area. 08/07/2014 Yes Energy No 7.5.3.1 Approved
06/25/2015
NPRR648 Remove References to Flowgate Rights This Nodal Protocol Revision Request (NPRR) deletes references to Flowgate Rights (FGRs) for consistency with NPRR599, Removal of FGR-Specific Settlement Language, which the ERCOT Board approved on 6/10/2014, and aligns Protocol language with ERCOT systems for Congestion Revenue Rights (CRRs), Settlements and Credit, which do not have the capabilities of valuing or settling FGRs. 08/26/2014 ERCOT No 6.6.10, 7.1, 7.3, 7.5.1, 7.5.2.1, 7.5.2.3, 7.5.3.1, 7.5.5.2, 7.5.5.3, 7.5.6.1, 7.5.6.2, 7.5.6.4, 7.8, 7.9.3.2, 7.9.3.3, 16.11.4.5, 16.11.4.7 Approved
03/01/2015
NPRR649 Addressing Issues Surrounding High Dispatch Limit (HDL) Overrides This Nodal Protocol Revision Request (NPRR) proposes a compensation mechanism for Generation Resources that are issued a High Dispatch Limit (HDL) manual override that results in a real power reduction (subject to certain criteria). The proposed mechanism compensates the Qualified Scheduling Entity (QSE) for financial loss associated with variable cost components of Day-Ahead Market (DAM) obligations or bilateral contracts arising from the HDL manual override. ERCOT submits this NPRR to satisfy its obligations under a settlement agreement reached with Odessa Ector Power Partners, LP in Public Utility Commission of Texas (PUCT) Docket 41790. ERCOT’s submission of this NPRR does not imply ERCOT’s support for or opposition to the principles stated in this NPRR. 09/12/2014 ERCOT No 1.3.1.1, 4.6.5, 6.5.7.1.10, 6.5.7.1.13, 6.6.3.9 (new), 6.6.3.10 (new), 6.6.5.1, 9.5.3 Approved
03/09/2017
NPRR651 Clarify DC Tie Data Request Timeline and Content This Nodal Protocol Revision Request (NPRR) clarifies the timeline and content of reporting Direct Current Tie (DC Tie) schedule requests from Transmission Service Providers (TSPs) and Distribution Service Provider (DSPs) by measuring ERCOT’s response time from the date of the request, rather than the last day of the previous month. This NPRR also removes paragraph (1)(c) of Section 9.17.2 as these fields are not available in the application which stores Electronic Tag (e-Tag) data. 09/17/2014 ERCOT No 9.17.2 Approved
01/01/2015
NPRR652 Posting of Information Under NERC Reliability Standards to the MIS This Nodal Protocol Revision Request (NPRR) allows for the posting of information under North American Electric Reliability Corporation (NERC) Reliability Standards to the Market Information System (MIS). 09/18/2014 ERCOT No 12.2 Approved
01/01/2015
NPRR653 Removal of Reasonable Contribution Language For Market Participant Data Requests This Nodal Protocol Revision Request (NPRR) removes Protocol language that refers to a "reasonable contribution" for data requests from Market Participants when such data request imposes a burden or an expense to ERCOT. ERCOT does not believe a contribution is necessary for Market Participant data requests. ERCOT is able to manage all requests within a time frame that does not impose resource contraints. 09/23/2014 ERCOT No 17.4 Approved
01/01/2015
NPRR654 Discontinue Ancillary Service Requirement Methodology Assessment Report This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for the Ancillary Service Requirement Methodology Assessment Report, ERCOT Market Information List (EMIL) ID, NP3-783-M. 09/24/2014 Julie Thomas on behalf of the MISUG No 3.16 Approved
09/25/2015
NPRR655 Discontinue Contingency List Changes Due to Weather Report This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for the Contingency List Changes Due to Weather Report, ERCOT Market Information List (EMIL) ID, ZP4-724-M. 09/24/2014 Julie Thomas on behalf of the MISUG No 4.2.3 Approved
09/25/2015
NPRR657 Discontinue Backup Control Plan Submittal Results, Dispatch Instructions Compliance Metrics, and Backup Control Plan Test Dates and Results Summary Reports This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for Discontinue Backup Control Plan Submittal Results, Dispatch Instructions Compliance Metrics, ERCOT Market Information List (EMIL) ID, NP8-510M and Backup Control Plan Test Dates and Results Summary Reports, EMIL ID NP8-922-M. This NPRR is part of a series of revision requests submitted by the Market Information System User Group (MISUG) in support of the TAC June 2013 recommendation that all manually developed ERCOT market reports be reviewed for market interest and the amount of labor involved to produce the reports. This NPRR is the result of a collaborative effort between the MISUG and ERCOT to review the reports that are manually produced by ERCOT. 09/24/2014 MIS User Group No 8.1, 8.3 Approved
09/25/2015
NPRR658 Changes to Annual Reporting Requirements for RUC Payments Made to Resources with PPAs This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting of the Annual Report requirement if there are no Make-Whole Payments for Resources with Power Purchase Agreements. ERCOT Market Information List (EMIL) ID, NP5-661-M. ERCOT Market Information List (EMIL) ID, NP5-661-M. This NPRR is part of a series of revision requests submitted by the Market Information System User Group (MISUG) in support of the TAC June 2013 recommendation that all manually developed ERCOT market reports be reviewed for market interest and the amount of labor involved to produce the reports. This NPRR is the result of a collaborative effort between the MISUG and ERCOT to review the reports that are manually produced by ERCOT. Below is the MISUG summary of the results of the review: · Evaluated the 134 reports manually produced by ERCOT Staff · 95 reports are required by Public Utility Commission of Texas (PUCT) Substantive Rules, ERCOT Protocols or an ERCOT Other Binding Document. · 39 reports are requested or self prompted. · Conclusion of the evaluation: · Discontinue 15 reports, eliminating 516 hrs of manual work annually. · Continue producing 119 reports which constitute 24,631.5 hours of manual work annually.Automate 15 reports which would eliminate 3,906 hours of manual work annually. 09/24/2014 MISUG No 5.6.1 Approved
03/01/2015
NPRR659 Discontinue RMR Cost Data Deviation Requests/Responses Report This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for Reliability Must Run Cost Data Deviation Requests/Responses, ERCOT Market Information List (EMIL) ID, NP3-558-M. This NPRR is part of a series of revision requests submitted by the Market Information System User Group (MISUG) in support of the TAC June 2013 recommendation that all manually developed ERCOT market reports be reviewed for market interest and the amount of labor involved to produce the reports. This NPRR is the result of a collaborative effort between the MISUG and ERCOT to review the reports that are manually produced by ERCOT. Below is the MISUG summary of the results of the review: · Evaluated the 134 reports manually produced by ERCOT Staff · 95 reports are required by Public Utility Commission of Texas (PUCT) Substantive Rules, ERCOT Protocols or an ERCOT Other Binding Document. · 39 reports are requested or self prompted. · Conclusion of the evaluation: · Discontinue 15 reports, eliminating 516 hrs of manual work annually. · Continue producing 119 reports which constitute 24,631.5 hours of manual work annually.Automate 15 reports which would eliminate 3,906 hours of manual work annually. 09/24/2014 MISUG No 3.14.1.12, 3.14.1.16 Approved
02/08/2018
NPRR660 Remove CRR State Change Adder This Nodal Protocol Revision Request (NPRR) deletes references to the State Change Adder component of the Congestion Revenue Right (CRR) Obligation credit calculation. Removal of the State Change Adder is proposed since there is no benchmark by which eligible CRR Obligation paths could be identified or the value of the State Change adjustment quantified. The State Change Adder was originally included as part of NPRR484, Revisions to Congestion Revenue Rights Credit Calculations and Payments, however, the initial system implementation of NPRR484 did not include the State Change Adder. 09/24/2014 ERCOT No 7.5.5.3, 16.11.4.5 Approved
03/01/2015
NPRR661 Discontinue Posting Profile Data Evaluation Report This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for the Profile Data Evaluation Report, ERCOT Market Information List (EMIL) ID, ZP18-432-M. This NPRR is part of a series of revision requests submitted by the Market Information System User Group (MISUG) in support of the TAC June 2013 recommendation that all manually developed ERCOT market reports be reviewed for market interest and the amount of labor involved to produce the reports. This NPRR is the result of a collaborative effort between the MISUG and ERCOT to review the reports that are manually produced by ERCOT. Below is the MISUG summary of the results of the review: Evaluated the 134 reports manually produced by ERCOT Staff 95 reports are required by Public Utility Commission of Texas (PUCT) Substantive Rules, ERCOT Protocols or an ERCOT Other Binding Document. 39 reports are requested or self prompted. Conclusion of the evaluation: Discontinue 15 reports, eliminating 516 hrs of manual work annually. Continue producing 119 reports which constitute 24,631.5 hours of manual work annually. Automate 15 reports which would eliminate 3,906 hours of manual work annually. 09/24/2014 Market Information System User Group (MISUG) No 18.3.1 Approved
09/25/2015
NPRR662 Proxy Energy Offer Curves This Nodal Protocol Revision Request (NPRR) addresses proxy Energy Offer Curves generated by ERCOT for a Resource that does not submit an Energy Offer Curve or submits an incomplete Energy Offer Curve. For a Resource without an Energy Offer Curve, a monotonically increasing proxy Energy Offer Curve will be created such that the last point on the curve is extended. For a Resource with an incomplete Energy Offer Curve (typically cogeneration facilities that update their HSL, but not their offer curve), a proxy Energy Offer Curve will be created to extend the offer price from last point on the submitted Energy Offer Curve up to the Resource's HSL. 10/02/2014 Thompson & Knight LLP, on behalf of Texas Industrial Energy Consumers (TIEC) No 6.5.7.3 Approved
09/01/2016
NPRR663 Ancillary Service Insufficiency Actions This Nodal Protocol Revision Request (NPRR) specifies the actions ERCOT will take to ensure sufficient Ancillary Service capacity exists in the event that ERCOT is unable to procure enough Ancillary Service capacity to meet its Ancillary Service Plan through the Day-Ahead Market (DAM). In summary, Supplementary Ancillary Service Market (SASM) and Houly Reliability Unit Commitement (HRUC) will be used, and in the event that Ancillary Service is still insufficient, Ancillary Service will be assigned to Qualified Scheduling Entities (QSEs) with Generation Resources based on available capacity. ERCOT’s intention is to keep this NPRR specific to ERCOT operational actions, with Settlement and other issues to be addressed in an additional NPRR submitted by Market Participants. 10/17/2014 ERCOT No 4.5.2, 5.2.2.2, 6.5.9.3.3 Approved
02/10/2016
NPRR664 Fuel Index Price for Resource Definition and Real-Time Make-Whole Payments for Exceptional Fuel Cost Events This Nodal Protocol Revision Request (NPRR) introduces a Fuel Index Price for Resource (FIPRr). Resources may designate an FIPRr based on the Gas Daily’s Waha index price, or the weighted price of the Gas Daily Houston Ship Channel index price and the Gas Daily Waha index price. The default FIPRr shall be the Fuel Index Price (FIP). Resources that designate an FIPRr based on Waha index price or the weighted price must submit documentation to ERCOT indicating such designation and provide proof of physical delivery from such areas, as described in the Verifiable Cost Manual. In addition, a Real-Time Make-Whole Payment provision is included to address exceptional fuel cost events that are not resolved by the change to an FIPRr. 10/22/2014 RCWG Yes 2.1, 2.2, 3.14.1, 3.14.1.16, 4.4.9.2, 4.4.9.2.1, 4.4.9.2.3, 4.4.9.3.1, 4.4.9.3.3, 4.4.9.4.1, 4.4.9.4.2, 5.6.1, 5.7.1.1, 5.7.3, 6.6.3.7, 6.6.3.8, 6.6.6.2, 7.9.1.3, 9.5.3, 9.14.7 Approved
01/01/2015

Sections 2.2, 6.6.3.7, and 6.6.3.8

05/01/2015

Grey-box Sections 6.6.3.7 and 6.6.3.8 until system implementation

NPRR665 As-Built Clarification of Reliability Deployment Price Adder Details how the Energy Offer Curves for Reliability Unit Commitment (RUC)-Committed Resources will be extended or created for the Security-Constrained Economic Dispatch (SCED) and the pricing run to determine the Reliability Deployment Price Adder; and clarifies language for related data that will be sent and/or posted during the Operating Hour. 10/22/2014 ERCOT No 6.3.2, 6.5.7.3, 6.5.7.3.1 Approved
06/25/2015
NPRR666 Clarification for the CRR Balancing Account This NPRR provides clarification of the process for the monthly CRR Balancing Account in accordance with NPRR580, approved by the ERCOT Board of Directors on 2/11/2014. 10/30/2014 ERCOT Yes 7.6 Approved
01/01/2015
NPRR668 Updates to Texas SET Implementation Guide Process This Nodal Protocol Revision Request (NPRR) updates the Texas SET Change Control process for the Texas SET Implementation Guides to clarify classification of change requests and to remove redundant and outdated language. 11/20/2014 Diana Rehfeldt on behalf of Texas SET Working Group No 2.1, 19, 19.1, 19.2, 19.3.2, 19.4, 19.4.1, 19.4.2, 19.4.3, 19.4.4, 19.4.5, 19.4.6, 19.4.7, 19.4.7.1, 19.4.7.2 Approved
07/01/2015
NPRR669 Maintaining Frequency Responsiveness from Generation Resources Providing RRS This Nodal Protocol Revision Request (NPRR) aligns Protocol language with the 2015 Ancillary Service Methodology. On 10/23/14, TAC unanimously endorsed the 2015 Ancillary Service Methodology with the provision that the Responsive Reserve (RRS) quantities for 2015 will be based on a 20% limitation to be effective beginning on June 1, 2015. This NPRR also deletes grey-boxes for NPRR524. 11/21/2014 ERCOT No 3.16, 3.18, 6.5.5.2 Approved
06/01/2015
NPRR670 Clarification of Portfolio Weighted Auction Clearing Price (PWACP) This Nodal Protocol Revision Request (NPRR) provides additional clarifications to Effective Auction Clearing Price and PWACP calculations related to Point-to-Point (PTP) Obligations collateralization. 11/24/2014 ERCOT No 7.5.5.3, 16.11.4.5 Approved
05/01/2015
NPRR671 Incorporation of DAM Credit Parameters into Protocols This NPRR incorporates the procedures in OBDs "Procedures for Setting Nodal Day Ahead Market (DAM) Credit Requirement Parameters" and "Credit Formulas and Detail Whitepaper for the Day-Ahead Market" into the Protocols. In addition, it removes the requirement for annual review of DAM credit parameters while adding change control processes for these parameters consistent with change control processes for other credit parameters. This NPRR also removes some of the ERCOT discretion associated with validation performance concerns and "significant" bid changes, and simplifies the explanation of the Point-to-Point (PTP) Obligation bid discount. 11/24/2014 ERCOT No 4.4.10 Approved
05/01/2015
NPRR672 Clarification of EMR and ONEMR Status This Nodal Protocol Revision Request (NPRR) clarifies the conditions whereby a Resource may utilize the ONEMR or EMR Current Operating Plan (COP) status. The ONEMR and EMR statuses restrict the systems from sending Reliability Unit Commitment (RUC) or Security-Constrained Economic Dispatch (SCED) instructions to Resources. This NPRR clarifies conditions that allow either of these status values to be used. Currently there is no such language in the Protocols or Guides. 11/25/2014 Morgan Stanley Capital Group, Inc. No 3.9.1 Approved
06/01/2015
NPRR673 Correction to Estimated Aggregate Liability (EAL) for a QSE that Represents Neither Load nor Generation This Nodal Protocol Revision Request (NPRR) corrects Protocol language introduced by NPRR620, Collateral Requirements for Counter-Parties with No Load or Generation, relating to Qualified Scheduling Entities (QSEs) representing neither Load nor Generation. 11/26/2014 ERCOT No 16.11.4.2 and 16.11.4.3 Approved
05/01/2015
NPRR674 Clarification of Water Supply Rights Documentation This Nodal Protocol Revision Request (NPRR) clarifies that an Interconnecting Entity (IE) meets the water supply condition for including a non-wind Generation Resource in the total capacity estimate when it demonstrates that it has obtained rights to water supplies by way of a contract or permit. The Protocols’ current use of the term "water rights" might be interpreted to suggest that only government-issued water permits meet this condition, when both contractual and permit-based rights should be understood to suffice. 12/02/2014 ERCOT No 3.2.6.2.2 Approved
07/01/2015
NPRR676 Emergency Response Service (ERS) Offer Disclosure This Nodal Protocol Revision Request (NPRR) requires ERCOT to post Emergency Response Service (ERS) offer data once per auction after the 60-day confidentiality period expires. Note that ERCOT is currently providing this information on an as-requested basis. 12/15/2014 TXU Energy No 3.14.3.4 Approved
09/11/2015
NPRR677 Remove Outdated NERC Reference This Nodal Protocol Revision Request (NPRR) removes outdated language from this section that references back to North American Electric Reliability Corporation (NERC) information that no longer exists. 12/17/2014 ERCOT No 6.5.1.2 Approved
05/01/2015
NPRR678 Posting of Wind Peak Average Capacity Percentage Data This Nodal Protocol Revision Request (NPRR) requires information used to calculate Wind Peak Average Capacity Percentages to be posted on ERCOT’s Website. 01/22/2015 ERCOT No 3.2.6.2, ERCOT Planning Reserve Margin Calculation Methodology Approved
05/01/2015
NPRR679 ONOPTOUT for RUC Given After the Adjustment Period This Nodal Protocol Revision Request (NPRR) allows for the telemetering of ONOPTOUT status for a Resource where a Reliability Unit Commitment (RUC) instruction is given after the close of the Adjustment Period. 01/26/2015 Tenaska Power Services No 5.5.2 Approved
NPRR680 Allow QSEs to Self-Arrange AS Quantities Greater Than Their AS Obligation This Nodal Protocol Revision Request (NPRR) proposes to allow a Qualified Scheduling Entity (QSE) to submit Self-Arranged Ancillary Service Quantities in excess of its Ancillary Service Obligations by up to 100 MW for each of Responsive Reserve (RRS) and Non-Spinning Reserve (Non-Spin); up to 25 MW for each of Regulation Up Service (Reg-Up) and Regulation Down Service (Reg-Down); and to receive appropriate compensation for those self-arranged quantities. This NPRR does not propose to change the requirement that self-arranged Responsive Reserve (RRS) Service provided by a Load Resource must be limited to 50% of a QSE’s RRS Ancillary Service Obligation, pursuant to paragraph (7) of Section 3.16, Standards for Determining Ancillary Service Quantities. 01/28/2015 ERCOT Yes 2.1, 4.4.7.1, 4.6.4.2.1, 4.6.4.2.2, 4.6.4.2.3, 4.6.4.2.4, 6.4.9.2, and 6.7.3 Approved
12/10/2015
NPRR681 Clarifications to Dynamic Ratings This Nodal Protocol Revision Request (NPRR) adds clarification for Dynamic Ratings provided via ICCP. 01/28/2015 ERCOT No 3.10.8.1, 3.10.8.2 Approved
07/01/2015
NPRR682 Changes to Notification Method when ERCOT Intends to Procure Additional Ancillary Services This Nodal Protocol Revision Request (NPRR) changes the notification to Market Participants from the Market Information System (MIS) Secure Area to the MIS Public Area when ERCOT intends to procure additional Ancillary Services through a Supplemental Ancillary Service Market (SASM). 02/04/2015 ERCOT No 3.16 Approved
09/25/2015
NPRR683 Revision to Available Credit Limit Calculation This Nodal Protocol Revision Request (NPRR) revises the calculation of Available Credit Limit for the CRR Auction (ACLC) and Available Credit Limit for the DAM (ACLD) by replacing the existing 10% discount to the ACL based on the Counter-Party’s unused letter of credit amount with a 10% gross up of the sum of the Total Potential Exposure Any (TPEA) and the Total Potential Exposure Secured (TPES). 02/09/2015 Luminant No 16.11.4.6, 16.11.4.6.1, and 16.11.4.6.2 Approved
02/07/2018
NPRR684 Annual RUC Impact Report Requirements This Nodal Protocol Revision Request (NPRR) clarifies the requirement for ERCOT to report to the Technical Advisory Committee (TAC) every January on the market impacts of Reliability Unit Commitment (RUC). 02/18/2015 ERCOT No 6.4.4.1 Approved
09/01/2015
NPRR686 Changing the IRR Forecast from Next 48 Hours to Next 168 Hours The Protocols currently require Qualified Scheduling Entities (QSEs) representing Wind-powered Generation Resources (WGRs) to submit a Current Operating Plan (COP) with a High Sustained Limit (HSL) value that is no higher than ERCOT’s Short-Term Wind Power Forecast (STWPF) for any of the first 48 hours covered by the COP. Nodal Protocol Revision Request (NPRR) 615, PVGR Forecasting, introduced a similar requirement that QSEs representing PhotoVoltaic Generation Resources (PVGRs) must submit an HSL that is no higher than the Short-Term PhotoVoltaic Power Forecast (STPPF) for the first 48 hours of the Resource’s COP. (Implementation of this NPRR is pending.) ERCOT’s supplier of the wind forecasts has recently added capability to provide an extended forecast that covers 7 days, or 168 hours. ERCOT has concluded that requiring QSEs to limit their HSLs to the STWPF and STPFF values for each of the next 168 hours could improve ERCOT’s operational visibility and help inform the Reliability Unit Commitment (RUC) process and the coordination of outages, while imposing little additional cost on QSEs. Additionally there is recognized benefit in publishing these forecast and providing them to all ERCOT particpants. Accordingly, ERCOT submits this NPRR to require QSEs representing WGRs or PVGRs to limit the HSL values submitted for the entire 168-hour range of the Current Operating Plan (COP) to the values provided in the most recent STWPF or STPFF, as applicable. As required by the Protocols, ERCOT will post these extended forecasts to the Market Information System (MIS), just as with the current 48-hour forecasts. 03/09/2015 ERCOT No 3.9.1, 4.2.2 Approved
12/10/2015
NPRR687 Required Telemetry for Operational Awareness and PDCWG Analysis This Nodal Protocol Revision Request (NPRR) requires the telemetry of any Non-Frequency Responsive Capacity (NFRC) to ERCOT for operational awareness. This NPRR allows the Performance, Disturbance, Compliance Working Group (PDCWG) to accurately measure the Primary Frequency Response (PFR) of Generation Resources while using ERCOT collected data necessary to analyze each Measurable Event. Revisions to the User Guide, “ERCOT Nodal ICCP Communications Handbook” will be required as a result of this NPRR. 03/20/2015 GDF SUEZ Energy Marketing NA No 2.1 and 6.5.5.2 Approved
07/01/2015
NPRR688 Black Start Services Testing Clarifications Clarification regarding Black Start testing periodicity and Black Start random testing requirements. 03/23/2015 ERCOT No 3.14.2, 8.1.1.2.1.5 Approved
07/01/2015
NPRR689 Settlement of Ancillary Service Assignment in Real-Time Operations This NPRR provides a Settlement mechanism for NPRR663, Ancillary Service Insufficiency Actions, by addressing the Settlement of Ancillary Services assigned during Real-Time Operations, as requested by WMS. This NPRR also includes administrative edits that consistently italicizes variables in equations and tables and aligns the formatting of equations in Sections 6.7.2 and 6.7.3. 03/26/2015 QMWG No 2.1, 6.7.2, 6.7.3, 9.5.3 Approved
02/10/2016
NPRR690 Incorporation of Creditworthiness Standards into Protocols This Nodal Protocol Revision Request (NPRR) incorporates the ERCOT Creditworthiness Standards (which currently resides in an Other Binding Document (OBD)) into the Protocols, and deletes references to the OBD. In addition, it corrects discrepancies between Protocols and the current Creditworthiness Standards relating to requirements to receive unsecured credit and in certain terminology, eliminates the annual Finance and Audit Committee review process for letter of credit concentration limits in favor of the change control process used elsewhere in Protocols, corrects a discrepancy between requirements for Electric Cooperatives (ECs) and applicable regulatory standards, and aligns Protocol language with the current Creditworthiness Standards to clarify that audited financial statements must be in accordance with Generally Accepted Accounting Principles (GAAP) or International Accounting Standards (IAS). 03/30/2015 ERCOT No 16.11.2, 16.11.3, 16.11.4.3, 16.11.5, 16.16.1, 16.16.3 Approved
09/25/2015
NPRR691 Alignment of Protocols with NERC Reliability Standard BAL-001-TRE-1 This Nodal Protocol Revision Request (NPRR) aligns Protocol language with North American Electric Reliability Corporation (NERC) Reliability Standard, BAL-001-TRE-1. 04/06/2015 PDCWG No 2.1, 2.2, 8.1.1.4.1, 8.5.1.1, 8.5.1.2, 8.5.1.3, 8.5.2, 8.5.2.1, 8.5.2.2 Approved
10/01/2016
NPRR692 Removal of MIS Posting Requirement of DAM Credit Parameters This Nodal Protocol Revision Request (NPRR) removes the posting requirement for Day-Ahead Market (DAM) Credit Parameters to the Market Information System (MIS) Public Area. 04/08/2015 ERCOT No 4.4.10 Approved
12/10/2015
NPRR693 Incorporation of “Threshold Values for Competitive Constraint Test” into the Protocols This NPRR incorporates the OBD “Threshold Values for Competitive Constraint Test” into the Protocols. 04/09/2015 ERCOT No 3.19.1 Approved
12/10/2015
NPRR694 Non-Spin Schedule Requirements This Nodal Protocol Revision Request (NPRR) defines the Real- Time Inter-Control Center Communications Protocol (ICCP) scheduling requirements for Off-Line Non-Spin, On-Line Non-Spin, and On-Line Non-Spin using Off-Line power augmentation technology. 04/09/2015 GDF Suez Energy Marketing No 6.5.5.2 Approved
09/01/2015
NPRR695 Posting and Notice Requirements for Notifications of Suspension of Operations and Notifications of Change of Generation Resource Designation This Nodal Protocol Revision Request (NPRR) requires ERCOT to post all Notifications of Suspension of Operations (except those for units on Forced Outage) and all Notifications of Change of Generation Resource Designation to the Market Information System (MIS) Secure Area and to issue a Market Notice within five Business Days of receipt. Because the Protocols already require ERCOT to post and provide notice of these notifications in almost all cases, this NPRR would effectively extend this requirement only to retirements of Mothballed Generation Resources and to RMR Units that would otherwise be mothballed upon expiration of the RMR Agreement. Requiring ERCOT to give notice of all retirements will provide additional transparency to the market and transmission planners. This NPRR also clarifies that retirements of Generation Resources are subject to the modeling timelines in Section 3.10.1, Time Line for Network Operations Model Changes. Finally, this NPRR proposes revisions to address the Protected Information status of information concerning Mothballed Generation Resources and to clarify the definitions of Decommissioned Generation Resource and Mothballed Generation Resource. 04/13/2015 ERCOT No 1.3.1.1, 2.1, and 3.14.1.9 Approved
09/01/2015
NPRR696 Price Correction Process Following a SCED Failure The existing process for managing price corrections following a Security-Constrained Economic Dispatch (SCED) failure creates situations where pricing outcomes are uncertain and may not reflect market conditions. When ERCOT experiences a SCED failure, the last good price is used for Settlement for the period of time when SCED does not execute. Following the failure, SCED resumes execution but ERCOT continues to take the necessary manual actions specified in paragraph (3) of Section 6.5.9.2, Failure of the SCED Process. to stabilize the system. During this stabilization period, ERCOT may or may not correct prices depending on their determination of whether the prices were erroneous or not. This creates price uncertainty for Market Participants that are actively transacting in the market. In addition, the manual actions taken in paragraph (3) of Section 6.5.9.2 following the SCED failure can significantly influence the pricing outcomes and produce results which do not reflect market conditions. This Nodal Protocol Revision Request (NPRR) establishes a price correction policy which uses the last good price for Settlement until ERCOT no longer requires manual action to stabilize the system following a SCED failure. ERCOT provides notice to Market Participants of the occurrence of a SCED failure by declaring a Watch in accordance with paragraph (1) of Section 6.5.9.2. Once the system has stabilized following a SCED failure and ERCOT no longer requires manual intervention, ERCOT will cancel the Watch in accordance with paragraph (4) of Section 6.5.9.2. By correcting prices for Settlement Intervals corresponding to the active Watch period, Market Participants will have transparency to known prices which reflect the last good SCED execution. 04/27/2015 Bill Barnes on behalf of Reliant Energy Retail Services, LLC No 6.3, 6.5.9.2 Approved
09/01/2016
NPRR698 Clarifications to NPRR595, RRS Load Resource Treatment In ORDC This Nodal Protocol Revision Request (NPRR) clarifies ERCOT’s intended implementation of NPRR595, RRS Load Resource Treatment In ORDC, and allows the use of currently telemetered values to provide the intent of NPRR595 at a lower project cost. 04/29/2015 ERCOT Yes 6.5.5.2, 6.7.4, 8.1.1.1, 8.1.1.2, 8.1.1.2.1.6, 8.1.1.4.2, and 8.1.1.4.4 Approved
10/22/2015

Sections 6.7.4, 8.1.1.1, and 8.1.1.4.2

NPRR699 Energy Offer Curve Caps for Make-Whole Calculations for Resource Type Other Nodal Protocol Revision Request (NPRR) 560, Caps and Floors for Energy Storage Resources, initially introduced the concept of an Energy Storage Resource Category to establish cost caps for storage technologies, such as Compressed Air Storage Resources. To reduce the impact to ERCOT systems of creating a new Resource category, it was decided to utilize the verifiable cost process to implement the various caps and classify all Energy Storage Resources as “Other”, which in the current Protocols have $0/MWh as the Energy Offer Curve Cap for make-whole calculations. The Energy Offer Curve Caps for make-whole calculations for Energy Storage Resources was described in the Verifiable Cost Manual as not having a cap, while in the Protocols these new types of Resources are classified as “Other”, with an Energy Offer Curve Cap for make-whole calculation of $0/MWh. Clearly, this was an oversight since ERCOT cannot calculate Energy Offer Curve Caps for make-whole calculations without a system change. This NPRR tries to rectify this oversight by setting the Energy Offer Curve Caps for make-whole calculations for “Other” Resources to the System-Wide Offer Cap (SWCAP), which is consistent with what was approved for Energy Storage Resources as not having a cap. Furthermore, ERCOT shall report annually to TAC or an assigned TAC Subcommittee the percentage of DAM and RUC Make-Whole Payments calculated for Resources classified as “Other”. In addition to the changes described above, a Resource category for Wind Generation Resources and PhotoVoltaic Generation Resources (PVGRs) have been created. ERCOT systems currently have a separate category for Wind Generation Resources with an Energy Offer Curve Cap for make-whole payments set at $0.00/MWh. We have included this category in this NPRR to align the Protocols with the current methodology ERCOT systems utilize. With the implementation of NPRR588, a PVGR category will be created with an Energy Offer Curve Cap for make-whole payments set at $0.00/MWh. The PVGR category has been included in this NPRR as a clarification for the methodology that will be used once NPRR588 is implemented. 04/29/2015 RCWG No 4.4.9.3.3 Approved
02/10/2016
NPRR700 Utilizing Actual Fuel Costs in Startup Offer Caps Just before the implementation of the Nodal Market, it was discovered that the Real-Time revenues earned by a Resource while ramping from breaker close to the Lowest Sustained Limit (LSL) were not included in the calculation of Reliability Unit Commitment (RUC) Make-Whole Payments. To mitigate this problem, it was decided to reduce the Startup Costs in RUC guarantee by an amount that approximates the Real-Time revenues (heat rate proxy “H”) to ensure a balanced equation (total cost versus total revenues). The reduction in Startup Costs affects both Day-Ahead Market (DAM) and RUC procurement given that both use the same cost structure in the calculation of Startup Offer caps, even though reducing Startup Costs in DAM by the heat rate proxy “H” is not desirable since it’s a financial market and generators do not earn additional revenues while ramping to the LSL. This Nodal Protocol Revision Request (NPRR) tries to rectify this problem by incorporating the actual fuel costs into the DAM and RUC procurement process and DAM Make-Whole Payment calculation. However, for RUC Make-Whole Payment calculations the Startup Costs should still be reduced by the heat rate proxy “H” to ensure a balanced equation. If approved, this NPRR should be implemented with NPRR 617, Energy Offer Flexibility. 04/29/2015 RCWG No 2.1, 4.4.9.2, 5.7.1.1 Approved
06/22/2016
NPRR701 As-Built Clarification of NPRR589, Ancillary Service Offers in the Supplemental Ancillary Services Market This Nodal Protocol Revision Request (NPRR) adds additional billing determinants to clarify the Settlement calculations and to show distinction between the subscript (m), which denotes a Supplemental Ancillary Services Market (SASM) and subscript (rs) used to describe a Reconfiguration SASM (RSASM). NPRR589, Ancillary Service Offers in the Supplemental Ancillary Services Market, did not fully describe all of the Settlement equations that are needed to implement the concept of separate Market Clearing Prices for Capacity (MCPCs) under a SASM or RSASM. This NPRR adds the missing Settlement equations to the Protocols as built into the ERCOT systems. 04/29/2015 ERCOT No 2.2, 6.4.9.2, 6.7.1, 6.7.2, 6.7.3 Approved
09/23/2015
NPRR702 Flexible Accounts, Payment of Invoices, and Disposition of Interest on Cash Collateral This Nodal Protocol Revision Request (NPRR) provides rules and procedures for Flexible Accounts, which may be used by a Counter-Party to make payments to and/or receive payments from ERCOT. This NPRR also addresses payment of Invoices and provides for annual disposition of interest on Cash Collateral. 04/29/2015 ERCOT No 2.1, 9.7.1, 9.7.2, 9.9.1, 9.9.2, 9.11.1, 9.11.2, 9.11.3, 9.13.1, 9.13.2, 9.13.2.1, 9.13.2.2, 9.13.2.3, 9.19, 9.19.2.1, 9.19.2.2, 9.20, 9.21, 9.21.1, 9.21.2, 16.11.3, and 16.11.6 Approved
09/01/2018

Sections 2.1 (partial) and 16.11.3 (partial)

NPRR703 Clarification of Disclosure Requirements for GINR Study Information As part of the process of interconnecting a new All-Inclusive Generation Resource, Interconnecting Entities are required to obtain a Full Interconnection Study (FIS) from the interconnecting Transmission Service Provider (TSP). The FIS typically includes a dynamic and transient stability study (“stability study”) and may include a subsynchronous oscillation (SSO) study. Stability studies and SSO studies often contain data and descriptions of unique generator characteristics that may credibly be considered “Resource-specific . . . design [or] engineering data” under paragraph (m) of Protocols Section 1.3.1.1, Items Considered Protected Information, and thus protected from disclosure. However, paragraph (l) in this same section provides that the “Protected Information status of [information related to generation interconnection requests] shall expire when the generation interconnection agreement is executed or a financial arrangement for transmission construction is completed with a [TSP]”). Given the unclear interplay of these two provisions, ERCOT submits this Nodal Protocol Revision Request (NPRR) and an associated Planning Guide Revision Request (PGRR) to clarify ERCOT’s disclosure obligations concerning FIS studies. Until recently, ERCOT’s practice had been to post all generator interconnection study information (including the FIS and the initial Resource Asset Registration Form) to the Planning and Operations Information website, which was accessible by any entity that had been granted access to the site. However, in October 2014, ERCOT decommissioned this website and, pursuant to new Section 7.1 of the Planning Guide, began posting generator interconnection information only to the Market Information System (MIS) Certified Area for each TSP. While the use of the MIS has given ERCOT the ability to precisely control access to generation interconnection information, some Market Participants have expressed concerns about these restrictions. A number of developers and consultants have raised a concern that the more limited availablility of FIS studies impedes their ability to evaluate potential project locations. Additionally, some participants at the April 23, 2015 meeting of the Congestion Management Working Group (CMWG) expressed concerns that withholding broader access to FIS studies might give Interconnecting Entities an unfair market advantage if those studies provide information that has not already been made public. Given these concerns, ERCOT recognizes a need for prompt stakeholder discussion of this issue so that the appropriate scope of disclosure can be determined as soon as possible. As proposed, this NPRR would allow disclosure of all FIS studies except stability studies and SSO studies. However, ERCOT understands that stakeholders may ultimately have a different view of this issue and that there may be other ways to safeguard this information short of restricting all public access to these studies. ERCOT therefore requests its stakeholders’ thoughtful and candid input on this proposal. Additionally, this NPRR proposes revisions to Sections 1.3.1.1(5), 1.3.1.2(3), and 1.3.3(5) to eliminate inconsistency and reduce duplication of language. This NPRR also proposes a definition of “Full Interconnection Study.” Finally, this NPRR proposes revisions to Section 1.3.3(4)—regarding information to be posted after an FIS is requested—to clarify that the information should be posted to the MIS Public Area rather than the MIS Certified Area. 04/29/2015 ERCOT No 1.3.1.1, 1.3.1.2, 1.3.3, 2.1, 2.2 Approved
12/10/2015
NPRR704 Revisions to the Size of Aggregate Generation Resources This Nodal Protocol Revision Request (NPRR) increases the limitation on the size of the individual Resource comprising an Aggregate Generation Resource (AGR). The current definition of an AGR sets a size limit of 10 MW on the constituent Resources that comprise an AGR; however the overall size of an AGR is limited only by the capacity of the transformer through which the potential AGR connects. Technology has advanced, in particular for reciprocating engines, such that newer, larger, more efficient units are prohibited from enjoying the benefits of registering as an AGR because of the current size limit imposed on the individual Resources that may comprise an AGR. As long as all individual Resources comprising an AGR are of an identical nature as currently required by the Nodal Protocols, the modeling and dispatching of such Resources should be agnostic to the size of the individual constituents, particularly in consideration of the inherent limitation imposed by the transformer to which they are interconnected. 05/14/2015 Clif Lange on behalf of South Texas Electric Coop., Inc. No 2.1 Approved
02/10/2016
NPRR705 Provides Consistency for References to the End Date of the Generation Interconnection Process In the Resource Interconnection Handbook, the term “commercial operations” has a different meaning to Resource Entities and financial institutions involved in construction and financing of Generation Resources than it does in the context of performance testing by ERCOT for new Generation Resources. This Nodal Protocol Revision Request (NPRR) replaces various terms used to refer to the date on which Generation Resources complete the Resource interconnection process with the proposed defined terms “Commercial Operations Date” and “Resource Commissioning Date” to provide consistency for references to the end of the generation interconnection process. 05/20/2015 ERCOT No 1.3.1.2, 1.3.3, 2.1, 3.15, 4.4.9.4.1 Approved
01/01/2016
NPRR706 Restore the ability to use Physical Responsive Reserve Capability as an Indicator of Available Frequency-Responsive Capacity This Nodal Protocol Revision Request (NPRR) revises the calculation of Physical Responsive Capability (PRC) to more accurately indicate the amount of capacity that is available to respond to a frequency disturbance, as discussed during the Energy Emergency Alert (EEA) Workshop. Accurate monitoring of the level of frequency-responsive reserves is important during all conditions and especially during Emergency Conditions where capacity providing Responsive Reserve Service is released to Security-Constrained Economic Dispatch (SCED), so that operators know how much remaining capacity is available on the system to respond to disturbances and can take appropriate actions. 05/20/2015 ERCOT No 6.5.7.5 Approved
10/22/2015
NPRR708 Clarifying ERCOT Actions During Energy Emergency Alerts This Nodal Protocol Revision Request (NPRR) revises the Energy Emergency steps to include concepts discussed during the 4/2/15 Energy Emergency Alert (EEA) workshop # 3 which will improve the management of EEA. Specifically, this NPRR explicitly adds the ability for operators to consider whether sufficient Resources are available to recover reserves within an acceptable timeframe following a disturbance before declaring an EEA; separates and clarifies the triggers for entering each step of the EEA plan from the operational goals while operating within each level of EEA; and formalizes an amount of Physical Responsive Capactiy (PRC) for operators to target when determining Load shed amounts in EEA Level 3. This NPRR also removes the requirement to notify the Southwest Power Pool Reliabilty Coordinator when an EEA is declared as this is a NERC requirement and is covered in the Operating Procedures. 05/26/2015 ERCOT No 6.5.9.4.2 Approved
01/01/2016
NPRR709 Revisions to Alternative Dispute Resolution Procedure This Nodal Protocol Revision Request (NPRR) modifies Section 20, Alternative Dispute Resolution Procedure, and clarifies certain related subsections in Section 9.14, Settlement and Billing Dispute Process. There are two primary modifications: (1) This NPRR incorporates a new process to provide Market Participants and other interested parties (collectively, “stakeholders”) an opportunity to comment on Alternative Dispute Resolution (ADR) proceedings. For all ADR proceedings, ERCOT will issue a Market Notice that includes a copy of the written ADR request. In addition, for any ADR proceedings that involve one or more issues for which ERCOT believes broader stakeholder input may be helpful in reaching an appropriate resolution of the claim, ERCOT may issue a Market Notice to inform all stakeholders of an opportunity to comment on such issue(s). Stakeholders will have 14 days to submit comments. The deadline by which parties to a dispute must conduct the initial ADR meeting has been extended to accommodate this new process. A table summarizing the new ADR timeline has been added to Section 20.3, Alternative Dispute Resolution Process. To support these modifications, ERCOT will revise the Alternative Dispute Resolution (ADR) Request Form and will create a new Alternative Dispute Resolution (ADR) Comment Form. (2) Sections 20.4, Mediation Procedures, and 20.5, Arbitration Procedures, have been deleted in their entirety. These types of procedures have rarely if ever been utilized and are unnecessary anyway, given that any aggrieved party may file a complaint against ERCOT on a completed ADR proceeding at the Public Utility Commission of Texas (PUCT). Additional revisions streamline and clarify the ADR process and improve language to align better with actual practice and updated industry standards. 05/27/2015 ERCOT No 9.14.1, 9.14.4, 9.14.4.1.6, 20.1, 20.2, 20.2.1, 20.2.2, 20.2.3, 20.3, 20.4, 20.5, 20.5.1, 20.5.2, 20.5.3, 20.5.4, 20.5.5, 20.2.6, 20.6, 20.7, 20.8, 20.9.1, and 20.9.2 Approved
07/01/2016
NPRR710 Removal of ORDC Phase 2 Language and Modification to HASL Calculation This NPRR removes Operating Reserve Demand Curve (ORDC) Phase 2; changes the High Ancillary Service Limit (HASL) calculation to remove Non-Frequency Responsive Capacity (NFRC) included in a Generation Resource’s High Sustained Limit (HSL), thereby creating the opportunity for an ORDC payment for the NFRC capacity through Ancillary Service imbalance Settlement; and clarifies the HASL definition between use in the Resource limit calculator, Reliability Unit Commitment (RUC) optimization, and the capacity shortfall ratio share. 05/27/2015 ERCOT No 2.1, 3.9, 6.5.5.2, 6.5.7.2, 6.7.4, 8.1.1, 8.1.1.1, 8.1.1.2, 8.1.1.2.1, 8.1.1.2.1.6, 8.1.1.2.1.7, 8.1.1.4.2, 8.1.1.4.4, and 8.1.1.4.5 Approved
10/22/2015
NPRR712 Clarification of RUC Process This Nodal Protocol Revision Request (NPRR) is submitted to clarify certain language regarding the Reliability Unit Commitment (RUC) process. Section 6.4.7.2, QSE Request to Decommit Resources in the Adjustment Period, requires a Qualified Scheduling Entity (QSE) that chooses to decommit an otherwise available Resource, for hours other than the Operating Period, to update the Current Operating Plan (COP) indicating the change in Resource Status for future hours. The RUC process detects the change in COP status from On-Line to Off-Line Available in the future hours as a request for decommitment, and ERCOT is required to review all such decommitment requests during each Hourly RUC (HRUC) sequence. Section 6.4.7.2 also requires that “The Resource must be shown as available for HRUC commitment.” This requirement has resulted in confusion among some QSEs, especially when reporting the COP status for a Generating Resource having a start-up time of one hour or less. Since the HRUC process normally begins soon after the end of the Adjustment Period (although ERCOT has discretion to execute the HRUC process at any time), QSEs with these relatively short lead time Resources must make a decommitment decision over 2 hours in advance of a particular Operating Hour, otherwise the updated COP will not show the Resource as “available for HRUC commitment” in that Operating Hour, resulting in a potential violation of Section 6.4.7.2. Compliance issues can also occur because QSEs are never exactly sure when ERCOT will initiate the HRUC process. While it is generally ERCOT’s practice to begin the HRUC process only a few minutes after the end of the Adjustment Period, as mentioned above ERCOT has discretion to execute the HRUC process at any time. Therefore, Resources with a start-up time of only 30 minutes, for example, which have been decommitted through a status change in the COP, may inadvertently make the Resource unavailable for RUC commitment if the RUC process doesn’t begin until 30 minutes after the end of the Adjustment Period. Exacerbating this potential compliance issue, ERCOT Staff has described the RUC algorithm as having a “15 minute buffer” that is added to the start-up times of all Resources to account for the time it takes to execute the RUC process. This 15 minute buffer effectively places all Resources, but especially those having a start-up time of one hour or less, at risk of violating the Section 6.4.7.2 requirement to show all decommitted Resources as “available for HRUC commitment,” because QSEs have not been aware of the 15 minutes being added to Resource start-up times. To resolve these RUC and COP timing issues, ERCOT Staff has stated their intention to modify the HRUC process and provide a list to the ERCOT Operators of all Off-Line Available Resources having a start-up time of one hour or less. This will allow QSEs with such Resources to update their COPs accurately and avoid a possible compliance issue by allowing a decommitment decision to be made just prior to the end of the Ajustment Period. The list of Off-Line Available, one hour or less start-up time Resources effectively makes the Resources “available for HRUC commitment,” even if the RUC software cannot commit them during the Operating Period due to the start-up time constraint and the 15 minute buffer inherent in the RUC software. Language is included in this NPRR to describe this proposed process change. Clarification is also needed regarding when a RUC-committed Resource must be on-line and released to Security-Constrained Economic Dispatch (SCED). Based on discussions with various QSEs, some believe a RUC-committed Resource should be on-line and released to SCED “prior to” the start of the RUC committed hour, while others believe the Resource must only be on-line and released to SCED “during” the RUC-committed hour. Exacerbating the confusion, the current language contained in Section 8.1.2, Current Operating Plan Performance Requirements, does not appear to meet the intent of a RUC deployment, as this section deems a Resource as “passing” the performance metric if the Resource is “On-Line and released to SCED for deployment in the RUC-Commitment Hour.” (emphasis added). As an extreme example, a RUC-committed Resource would pass the metric even if it was only released to SCED for a single minute in the commitment hour, which is clearly not the intent of an hour long commitment instruction. Language has therefore been added to Section 8.1.2, Current Operating Plan Performance Requirements, suggesting that all RUC-committed Resources be on-line and released to SCED within the first 15 minutes of a RUC deployment instruction. 06/17/2015 NRG No 5.1, 5.3, 5.5.2, 5.5.3, 6.3.2, 6.4.7.2, 8.1.2 Approved
10/01/2016

All sections except for Section 8.1.2

11/03/2016

Section 8.1.2

NPRR713 Reactive Power Testing Requirements This Nodal Protocol Revision Request (NPRR) revises the language in Section 8.1.1.2.1.4, Voltage Support Service Qualification, to reference the reactive power testing requirements in the Nodal Operating Guides and reflect the revisions to harmonize the Nodal Protocol requirements with recently approved North American Electric Reliability Corporation (NERC) Reliability Standards. 06/29/2015 Luminant No 8.1.1.2.1.4 Approved
12/09/2016
NPRR714 Real-Time Make-Whole Payment for Exceptional Fuel Cost Nodal Protocol Revision Request (NPRR) 664, Fuel Index Price for Resource Definition and Real-Time Make-Whole Payments for Exceptional Fuel Cost Events, included a Real-Time Make-Whole Payment provision to address exceptional fuel cost events that are not resolved by a change to the Fuel Index Price for Resource (FIPRr). ERCOT implemented a manual process to satisfy the requirements of these sections until May 1, 2015, at which time Sections 6.6.3.7 and 6.6.3.8 were grey boxed pending an automated solution. This NPRR restores the manual process for Real-Time Make-Whole Payments and Charges to address exceptional fuel cost events; and includes revisions that clarify and improve the Settlement calculations for the manual process consistent with the intent of NPRR664. 06/30/2015 GDF SUEZ No 6.6.3.7, 6.6.3.8, 9.5.3 Approved
11/01/2015
06/01/2017

Sunset

NPRR715 Clarification of Generator Modeling in the Market System This Nodal Protocol Revision Request (NPRR) clarifies the modeling of Resources and brings the Protocols into better alignment with the current market systems by creating a new defined term, Resource Connectivity Node, and specifying that energy injection is at that node. 07/01/2015 ERCOT No 2.1, 3.8.2, 4.5.1, and 6.5.7.3 Approved
01/01/2016
NPRR716 Corrections to Aggregated Load and Participant Specific Generation Data Requirements This Nodal Protocol Revision Request (NPRR) removes duplicative Protocol language and aligns Load and generation data posting requirements with current operating practice. 07/08/2015 ERCOT No 11.5.1.1, 11.5.2.1 Approved
01/01/2016
NPRR717 Clarification of EPS Metering Exception for ERS Generation This Nodal Protocol Revision Request (NPRR) adds language in Section 10.2.3 to exempt generation offering Emergency Response Service (ERS) during the current contract period from the ERCOT-Polled Settlement (EPS) metering requirement and allow the EPS-exempt ERS Generator to export energy to the ERCOT System during equipment testing. 07/10/2015 Austin Energy No 10.2.3 Approved
11/01/2015
NPRR718 Correct Requirement for Posting AML Data Current Protocol language requires that Adjusted Metered Load (AML) data be available for six months after the Operating Day. However, the Protected Information Status of AML data expires 180 days after the Operating Day, making the posting requirement infeasible. This Nodal Protocol Revision Request (NPRR) corrects the Protocols so that AML data is available for six months after posting. 07/17/2015 ERCOT No 1.3.3 Approved
12/10/2015
NPRR719 Removal of Trigger and Requirement to Reduce the Distributed Generation (DG) Registration Threshold This Nodal Protocol Revision Request (NPRR) removes the requirement for ERCOT to reduce the DG registration threshold when the aggregated unregistered installed capacity of DG greater than 50 kW in any one Load Zone reaches 10 MW. 07/17/2015 Michelle Trenary on behalf of the Commercial Operations Subcommittee (COPS) No 16.5 Approved
05/01/2016
NPRR720 Update to Settlement Stability Reporting Requirements This Nodal Protocol Revision Request (NPRR) updates and clarifies the Settlement stability reporting requirements included in Section 8.2. 07/17/2015 Michelle Trenary on behalf of the Commercial Operations Subcommittee (COPS) No 8.2 Approved
03/01/2016
NPRR721 Removal of Language Related to NPRR455, CRR Shift Factors Report This Nodal Protocol Revision Request (NPRR) removes the grey-box for NPRR455, which requires the posting of a report of Shift Factors for binding constraints in a Congestion Revenue Right (CRR) Auction. 07/24/2015 Luminant No 7.5.3.1 Approved
11/01/2015
NPRR722 Removal of Language Related to NPRR181, FIP Definition Revision This Nodal Protocol Revision Request (NPRR) eliminates revisions to the definition of “Fuel Index Price” and eliminates the introduction of the new defined term “Gas Day” introduced by NPRR181. These definition revisions remain unimplemented since Nodal Go-Live. 07/24/2015 Luminant No 2.1 Approved
11/01/2015
NPRR723 Removal of grey-boxes from NPRR256, Adding Non-Compliance Language to QSE Performance Standards This Nodal Protocol Revision Request (NPRR) eliminates portions of NPRR256, including non-compliance language related to Qualified Scheduling Entity (QSE) performance standards which remain unimplemented since Nodal Market go-live. 07/24/2015 Luminant No 8.1.1.4.1 Approved
11/01/2015
NPRR724 Removal of Language Related to NPRR493, Half-Hour RUC Clawback This Nodal Protocol Revision Request (NPRR) removes the grey-boxes for NPRR493, which define the term “Half-Hour Start Unit” and detail the Reliability Unit Commitment (RUC) Clawback treatment of such units. 07/24/2015 GDF Suez No 2.1 and 5.7.2 Approved
11/01/2015
NPRR725 Modifications to CDR PUN Capacity Forecasting and PUN Net Capacity Reporting Requirements This Nodal Protocol Revision Request (NPRR) makes improvements to the forecasting of Private Use Network net generation capacity available to the ERCOT Region for use in the Report on Capacity, Demand and Reserves (CDR) and other ERCOT Resource adequacy assessments. A proposed Declaration of Private Use Network Net Generation Capacity Availability for collecting annual Private Use Network capacity forecast information is attached. 07/29/2015 ERCOT No 3.2.6.2.2, 10.3.2.4, 22, Attachment L (New) Approved
01/01/2016
NPRR726 Daily Network Operations Model PSS/E File Posting Modification This Nodal Protocol Revision Request (NPRR) removes an ERCOT requirement to set ratings for series devices not secured in the Day-Ahead Market (DAM) to zero in the daily Power System Simulator for Engineering (PSS/E) Network Operations Model files. 08/05/2015 ERCOT No 4.2.3 Approved
01/01/2016
NPRR727 Removal of Language Related to NPRR327, State Estimator Data Redaction Methodology This Nodal Protocol Revision Request (NPRR) removes NPRR327’s grey-boxed language from the Protocols. 08/05/2015 Calpine, Thompson & Knight LLP on behalf of TIEC, Reliant Energy No 3.20 (deleted), 3.20.1 (deleted), 3.20.2 (deleted), and 6.5.7.1.13 Approved
01/01/2016
NPRR728 Removal of Language Related to NPRR484, Revisions to Congestion Revenue Rights Credit Calculations and Payments, and NPRR554, Clarification of Future Credit Exposure Calculation This Nodal Protocol Revision Request (NPRR) removes portions of Protocol language introduced by NPRR484 related to Congestion Revenue Rights (CRR) Auction processes, payments and credit calculations, and portions of NPRR554 related to the calculation of Future Credit Exposure (FCE). This NPRR also removes the report posting requirement for Counter-Party FCE for Point-to-Point (PTP) Options and PTP Obligations. 08/11/2015 Luminant No 7.5.5.3, 7.8, 9.8,9.9,9.9.1,9.9.2,16.11.4.5,16.11.4.7 Approved
04/12/2016
NPRR729 Clarification of Metering Requirements for Resources This Nodal Protocol Revision Request (NPRR) clarifies the metering requirements for Resources, specifically Interval Data Recorder (IDR) Meters versus IDRs. 08/14/2015 ERCOT No 10.9 Approved
01/01/2016
NPRR730 Elimination of the RUC Behavioral Pricing Rule This Nodal Protocol Revision Request (NPRR) eliminates the now unnecessary behavioral pricing rule that applies to Reliability Unit Commitment (RUC)-committed units that places all MWs above the Resource’s Low Sustained Limit (LSL) at the RUC floor price of $1,500/MWh. 08/17/2015 Calpine No 6.4.4.1 (delete) and 6.5.7.3 Approved
01/01/2016
NPRR731 Changes to Annual Reporting Requirements for RUC Decommitment Payment Amounts This Nodal Protocol Revision Request (NPRR) modifies a reporting requirement for Reliability Unit Commitment Decommitment (RUC) Payment Amounts to state the report is only required where there is data to report, otherwise no report is posted. 08/20/2015 ERCOT No 5.7.3 Approved
01/01/2016
NPRR732 Adjustments to Verifiable Costs for Required Resubmissions and Clarification of RUC Forced Outage and Cancellation Procedures This Nodal Protocol Revision Request (NPRR) better aligns Protocols language concerning verifiable cost recovery related to Reliability Unit Commitment (RUC) with approved language within the Verifiable Cost Manual. 08/24/2015 ERCOT No 5.6.3, 5.6.4 Approved
12/18/2015
NPRR733 Delete Expiration of Customer Load Data Protected Information Status This Nodal Protocol Revision Request (NPRR) removes the 180-day expiration of Protected Information status for raw and Adjusted Metered Load (AML) data (demand and energy) identifiable to a Customer or ESI ID. The Protected Information status of raw and AML data (demand and energy) identifiable to a specific Qualified Scheduling Entity (QSE) or Load Serving Entity (LSE) shall continue to expire 180 days after the applicable Operating Day. 08/26/2015 ERCOT No 1.3.1.1 Approved
01/01/2016
NPRR734 Digital Attestation Signature Authority Clarification This Nodal Protocol Revision Request (NPRR) clarifies the list of authorized Market Participant employees capable of providing the required annual attestation related to Digital Certificates. 09/17/2015 Brasovan Energy Solutions LLC No 16.12.3 Approved
03/01/2016
NPRR735 Load Resource Controlled by High-Set Under-Frequency Relay Resource Parameters This Nodal Protocol Revision Request (NPRR) clarifies that the Current Operating Plan (COP) High Sustained Limit (HSL) for Load Resources controlled by high-set under-frequency relay should be equal to their expected power consumption. In Real-Time telemetry the HSL should equal their consumption. ERCOT can calculate the value for the additional available capacity from Load Resources controlled by high-set under frequency relays with a Responsive Reserve (RRS) Ancillary Service Resource Responsibility from (COP HSL – COP LSL – COP RRS). This value can be used in place of the COP value for additional available capacity from NPRR698, Clarifications to NPRR595, RRS Load Resource Treatment In ORDC. 09/30/2015 ERCOT No 3.9 and 3.9.1 Approved
01/01/2016
NPRR736 Updates to the Ancillary Service Capacity Monitor Display This Nodal Protocol Revision Request (NPRR) updates the Ancillary Service Capacity Monitor display on the ERCOT website with additional information by adding the On-Line and Off-Line Reserves used for the Operating Reserve Demand Curve (ORDC), High Dispatch Limit (HDL), and Low Dispatch Limit (LDL) as new items to the display. 09/30/2015 ERCOT No 6.5.7.5 Approved
11/03/2016
NPRR737 Clarification of SASM Notifications This Nodal Protocol Revision Request (NPRR) requires ERCOT to provide notification of a Supplemental Ancillary Services Market (SASM) to all Qualified Scheduling Entities (QSEs) by ERCOT Hotline call in addition to the current electronic communication. 09/30/2015 STEC No 6.4.9.2 Approved
02/10/2016
NPRR738 ERS Performance Calculations During TDSP Outages This Nodal Protocol Revision Request (NPRR) excludes intervals from performance calculations for which an Emergency Response Service (ERS) Generator is unable to meet its obligations due to Transmission and/or Distribution Service Provider (TDSP) Outages. 10/21/2015 MP2 Energy, LLC. No 8.1.3.1.4 Approved
10/01/2016
NPRR739 Prohibiting Load Resources Associated with a Dynamically Scheduled Resource This Nodal Protocol Revision Request (NPRR) closes a gap in the Protocols to prohibit participation by sites associated with Dynamically Scheduled Resources (DSRs) as a Load Resource. This language is similar to that approved for Emergency Response Service (ERS) Resources in NPRR564, Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions. 10/21/2015 MP2 Energy, LLC. No 3.6.1 Approved
03/01/2016
NPRR740 Retail Clarification and Cleanup This Nodal Protocol Revision Request (NPRR) updates Section 15 to clarify 867_02, 867_03 and 867_04 transactions are forwarded by ERCOT to the Competitive Retailer (CR) Data Universal Numbering System (DUNS) provided in the 867_02, 867_03 or 867_04 transactions received from the Transmission and/or Distribution Service Provider (TDSP). 10/22/2015 ERCOT No 15, 15.1.1.2.1, 15.1.1.2.2, 15.1.1.7, 15.1.4.1, 15.1.4.7.1, 15.1.4.7.2, 15.1.5.6, 15.3, 15.4.1 Approved
03/01/2016
NPRR741 Clarifications to TPE and EAL Credit Exposure Calculations This Nodal Protocol Revision Request (NPRR): • Simplifies equations for Estimated Aggregate Liability (EAL) and moves Potential Uplift (PUL) to Total Potential Exposure Any (TPEA); • Removes contradictory language for when Initial Estimated Liability (IEL) is to be used; • Applies consistent variable subscripts across applicable Protocol sections; • Corrects defined terms and subscripts; • Eliminates the Congestion Revenue Rights Activity (CRRA) flag to simplify the Total Potential Exposure (TPE) equation. This flag was used to set inclusion of EAL for all the CRR Account Holders represented by the Counter-Party (EALa) in either TPEA or Total Potential Exposure Secured (TPES); • Groups additional parameters to utilize standard change control process; • Clarifies components of Real-Time Liability (RTL) and Outstanding Upaid Transactions (OUT); and • Corrects Minimum Current Exposure (MCE) formula to conform to as-implemented form. 10/28/2015 ERCOT No 16.11.4.1, 16.11.4.2, 16.11.4.3, 16.11.4.3.1, 16.11.4.3.2, 16.11.4.5 Approved
05/01/2016

Clarification-only revisions.  Please see the 4/19/16 Board Report under "Key Documents" for the complete set of changes.

06/02/2019

All remaining sections

NPRR742 CRR Balancing Account Invoice Data Cuts This Nodal Protocol Revision Request adds the prior month account fund balance CRRBAFBBAL as a new determinant to represent CRRBAF (m-1). 11/18/2015 Lower Colorado River Authority (LCRA) No 7.9.3.4, 7.9.3.5, 7.9.3.6 Approved
06/22/2016
NPRR743 Revision to MCE to Have a Floor For Load Exposure This Nodal Protocol Revision Request (NPRR) revises the Minimum Current Exposure (MCE) calculation to maintain a floor for Load exposure. 11/18/2015 ERCOT No 16.11.4.1 Approved
02/07/2018
NPRR744 RUC Trigger for the Reliability Deployment Price Adder and Alignment with RUC Settlement This Nodal Protocol Revision Request (NPRR) proposes to use a telemetered snapshot at the start of each Reliability Unit Commitment (RUC) block as a trigger for the adder created by NPRR626, Reliability Deployment Price Adder. In support of this change to the Reliability Deployment Price Adder, this NPRR also changes the process for opting out of RUC Settlement, regardless of the timing of the notification of the RUC, which provides an alternative to the RUC Settlement opt out method approved in NPRR416, Creation of the RUC Resource Buyback Provision, as modified by NPRR679, ONOPTOUT for RUC Given After the Adjustment Period. Clarifications to the definition of RUC Buy-Back Hour are also included. 11/18/2015 ERCOT No 2.1, 5.5.2, 6.4.4.1, 6.5.7.3.1, and 6.7.4 Approved
06/01/2017
NPRR745 Change ERS Availability from an Hourly to 15-minute Interval Evaluation plus Other Minor Changes This Nodal Protocol Revision Request (NPRR) proposes numerous minor changes to the Emergency Response Service (ERS). Those changes include: • Changes to the Resource identification process that clarifies ERCOT’s role in identifying baselines available to each site for Qualified Scheduling Entities (QSEs) to choose from. • Change outdated ERS nomenclature (e.g, replace Contract Period with Standard Contract Term) where appropriate. • Change deadline for QSEs to submit notice of ERS Load unavailability deadline from five Business Days to three calendar days. • Change deadline for QSEs to revise planned maintenance or self-test schedules for ERS Generators from five Business Days to three calendar days. • Change the testing exemption for an ERS Resource that successfully completes a test or meets its performance obligations during an ERS deployment event from 365 days to 330 days to provide ERCOT with flexibility to schedule and complete tests within a one year maximum time period. • Specify metering options for sites with Distributed Renewable Generation (DRG). • Other clarifying improvements. 11/20/2015 ERCOT No 3.14.3.1, 3.14.3.3, 3.14.3.4, 8.1.3.1, 8.1.3.1.1, 8.1.3.1.2, 8.1.3.1.3.1, 8.1.3.1.3.2, 8.1.3.1.3.3, 8.1.3.1.4, 8.1.3.2, 8.1.3.3.1, 8.1.3.3.2, 8.1.3.3.3, 8.1.3.3.4 Approved
06/14/2016
NPRR746 Adjustments Due to Negative Load This Nodal Protocol Revision Request (NPRR) proposes modifications to address certain undesirable outcomes that follow from assigning one or more Qualified Scheduling Entities (QSEs) a negative Load or negative Load Ratio Share (LRS). These undesirable outcomes include: Assigning a QSE a negative Ancillary Service Obligation; Paying, rather than charging, a QSE for Emergency Response Service (ERS); Paying, rather than charging, a QSE for the System Administration fee; and Paying, rather than charging, a QSE in the event of a default uplift. 11/24/2015 ERCOT No 4.2.1.2, 6.6.2.1, 6.6.2.2, 6.6.2.3 (new), 6.6.2.3, 6.6.11.1, 6.6.11.2, 9.16.1, 9.19.1 Approved
05/11/2017
NPRR747 Revision of Voltage Control Requirements This Nodal Protocol Revision Request (NPRR) proposes new definitions related to Voltage Profiles, defines various entities’ responsibilities related to Voltage Support, and also clarifies that the interconnecting Transmission Service Provider (TSP) (or its designated agent) may modify a Generation Resource’s Voltage Set Point). This NPRR addresses issues raised at the April 8, 2015 Voltage Workshop. 11/25/2015 ERCOT No 2.1, 3.15, 3.15.3, 6.5.7.7 Approved
01/01/2017
NPRR748 Revisions associated with COM-002-4 and Other Clarifications Associated with Dispatch Instructions This Nodal Protocol Revision Request (NPRR) aligns with NERC Standard COM-002-4, Operating Personnel Communications Protocols, and provides language clarification for Dispatch Instructions and procedures . 11/25/2015 ERCOT No 6.5.7.8, 6.5.8 Approved
05/01/2016
NPRR749 Option Cost for Outstanding CRRs This Nodal Protocol Revision Request (NPRR) requires ERCOT to publish the cost of options for all outstanding Congestion Revenue Rights (CRRs) within the CRR Auction process. 12/09/2015 Saracen Energy West, LP No 7.5.3.1 Approved
05/07/2019
NPRR750 Clarify Resource Status when Providing Fast Responding Regulation Service This Nodal Protocol Revision Request (NPRR) clarifies current practice for setting telemetry when providing Fast Responding Regulation Service (FRRS). 12/17/2015 ERCOT No 3.9 and 3.9.1 Approved
05/01/2016
NPRR752 Clarification of Revision Request Process This Nodal Protocol Revision Request (NPRR) clarifies Protocol language related to the revision request process to reflect current ERCOT practices. Changes include: • Alignment of Protocol language with NPRR/System Change Request (SCR) submission forms and the Impact Analysis form; • Clarification of initial SCR evaluation by ERCOT; • Clarification of whether Revision Request related documents are distributed to exploders and/or posted to the ERCOT website and which committees/subcommittees they are distributed to; and • Additional administrative changes to align with current ERCOT practices. 01/22/2016 ERCOT No 21.4.1, 21.4.2, 21.4.4, 21.4.5, 21.4.6, 21.4.7, 21.4.8, 21.4.9, 21.4.10, 21.5, 21.6 Approved
07/01/2016
NPRR753 Allow AMS Data Submittal Process for TDSP-Read Non-Modeled Generators This Nodal Protocol Revision Request (NPRR) allows the option of using the Advanced Metering System (AMS) data submittal process for all Transmission and/or Distribution Provider (TDSP)-read Non-Modeled Generators; and requires an Interval Data Recorder (IDR) Meter for Block Load Transfer (BLT) metering points registered for Settlements in accordance with Section 6.5.9.5.1, Registration and Posting of BLT Points. 01/26/2016 ERCOT No 1.3.1.1 and 10.9 Approved
03/09/2017
NPRR754 Revise Load Distribution Factors Report Posting Frequency This Nodal Protocol Revision Request (NPRR) revises two provisions addressing the posting frequency for the Load forecast distribution factors report to require posting of the report only when the factors are changed. 01/26/2016 ERCOT No 4.2.4.1, 4.5.1, 6.3.2 Approved
12/09/2016
NPRR755 Data Agent-Only QSE Registration This Nodal Protocol Revision Request (NPRR) allows an Entity to register as a Data Agent-Only Qualified Scheduling Entity (QSE) for the purpose of connecting to the ERCOT Wide Area Network (WAN) as an agent for another QSE, without meeting collateral and capitalization requirements otherwise applicable to a QSE. 01/27/2016 ERCOT No 2.1, 16.2.1, and 16.2.1.1 Approved
06/15/2019
NPRR758 Improved Transparency for Outages Potentially Having a High Economic Impact This Nodal Protocol Revision Request (NPRR) introduces language to: identify Outages that have historically resulted in high congestion costs, as adjusted through a stakeholder review process to account for upgrades and other changes that would affect the fidelity of this list as an indicator of Outages that might cause future congestion; encourage earlier submission of these Outages; formalize the process of rescheduling these Outages when they must be moved due to Forced Outages or later-arriving generator Outages; and provide improved transparency to Market Participants when Outages with this potential congestion impact are submitted with less than 90 days’ notice. Specific items proposed within this NPRR include: identification and posting of High Impact Transmission Elements (HITEs) and High Impact Outages (HIOs); and introduction of a Rescheduled Outage type. 02/26/2016 ERCOT No 2.1, 2.2, 3.1.1, 3.1.2, 3.1.3.1, 3.1.4.1, 3.1.4.3, 3.1.4.4, 3.1.4.5, 3.1.5.1, 3.1.5.2, 3.1.5.6, 3.1.5.7, 3.1.5.8, 3.1.5.11, 3.1.5.13, 3.1.8 (new), 6.5.9.5 Approved
01/01/2017

Sections 2.1 (partial), 3.1.8, and 3.1.5.13(1)(d)

09/14/2017

All remaining sections

NPRR760 Calculation of Exposure Variables For Days With No Activity Today, the Real-Time Liability Extrapolated (RTLE), the Unbilled Real-Time Amount (URTA), and Day-Ahead Liability Extrapolated (DALE) variables are based on the 14 (RTLE and URTA) or 7 (DALE) most recent calendar days divided by the number of Real-Time Market (RTM) Initial Statements generated for the Counter-Party in the same period. Operating Days with zero activity are not captured in the above calculations since RTM Initial Statements are not generated for those Operating Days. This Nodal Protocol Revision Request (NPRR) would correct this by capturing the Operating Days with zero activity in the denominator of the RTLE, URTA, and DALE calculations. 03/01/2016 DC Energy Texas No 16.11.4.3 Approved
02/07/2018
NPRR761 As-Built Clarification to NPRR515, Day-Ahead Market Self-Commitment of Generation Resources Nodal Protocol Revision Request (NPRR) 515, Day-Ahead Market Self-Commitment of Generation Resources, adds a Day-Ahead Market (DAM) mechanism for self-committing Generation Resources on an hourly basis. If a self-committed hour is contiguous with a DAM committed hour the DAM considers the Resource as having no cost to start up. This NPRR clarifies that a Resource will not be eligible for Day-Ahead Make-Whole Payment Startup Cost compensation when the DAM considers the Resource as having no cost to startup, per NPRR515. 03/09/2016 ERCOT No 4.6.2.3 Approved
06/22/2016
NPRR762 Removal of Language Related to Responsive Reserve Provided by DC Ties This Nodal Protocol Revision Request (NPRR) removes references to the provision of Responsive Reserve (RRS) across the Direct Current Ties (DC Ties). These references existed in the Zonal Protocols, and similar references have existed in the Operating Guides from at least 1997. However, to date, there are no ERCOT systems or procedures in place to award RRS to the DC Ties, and no project to add this functionality has ever been proposed. Without any funding for the necessary system changes, ERCOT has no mechanism for allowing the provision of RRS over the DC Ties. 03/18/2016 ERCOT No 3.16, 3.17.2, 4.4.4, and 8.1.1.2.1.2 Approved
07/01/2016
NPRR763 As-Built Clarification to NPRR553, Monthly BLT Payment and Charge for Presidio Exception This Nodal Protocol Revision Request (NPRR) corrects the formula for the calculation of the Load-Allocated Monthly BLT Amount per QSE (LAMBLTAMT) in paragraph (3)(c) of Section 6.6.3.5 to reflect a charge, rather than a payment, to comport with the facial intent of NPRR553, Monthly BLT Payment and Charge for Presidio Exception, and with the system implementation of that charge. The title of NPRR553 references a charge (in addition to a payment) and the language preceding the formula expresses an intention to impose a charge. For these reasons, ERCOT believes that the omission of the required “-1” at the beginning of the formula was inadvertent and should be corrected. 03/24/2016 ERCOT No 6.6.3.5 Approved
07/01/2016
NPRR764 QSE Capacity Short Calculations Based on an 80% Probability of Exceedance (P80) This Nodal Protocol Revision Request (NPRR) proposes to base Reliability Unit Commitment (RUC) capacity short calculations on the Wind-Powered Generation Resource Production Potential (WGRPP) for a Wind-powered Generation Resource (WGR) and the PhotoVoltaic Generation Resource Production Potential (PVGRPP) for a PhotoVoltaic Generation Resource (PVGR)–i.e., an 80% probability of exceedance (P80). Under the current Protocols, RUC capacity short calculations are based on the Short Term Wind Power Forecast (STWPF) and the Short-Term PhotoVoltaic Power Forecast (STPPF)—i.e., a 50% probability of exceedance (P50)—pursuant to language introduced by NPRR210, Wind Forecasting Change to P50, Synchronization with PRR841, and NPRR615, PVGR Forecasting. Although NPRR210 directs ERCOT to utilize the WGRPP (P80) in RUC capacity short calculations, there was a missed impact given that the P80 forecast is currently not available in the Market Management System (MMS) but instead resides in the Energy Management System (EMS). Only the STWPF and STPPF, which are used as inputs into the Day-Ahead RUC (DRUC) and Hourly RUC (HRUC), are available in MMS. 03/30/2016 ERCOT No 5.7.4 and 5.7.4.1.1 Approved
03/09/2017
NPRR765 Remove Vendor Names for Fuel Indices from the Protocols This Nodal Protocol Revision Request (NPRR) eliminates the name of the publisher of the Fuel Index Price (FIP), Fuel Oil Price (FOP), and Waha Fuel Price (WFP) from the Protocols, and provides additional clarifying language regarding the use of a substitute source for daily fuel prices in the event that one is needed. 03/30/2016 ERCOT No 2.1 Approved
07/01/2016
NPRR766 Alignment of System-Wide Discount Factor Description with Operational Adjustments to RDF This Nodal Protocol Revision Request (NPRR) aligns the Protocol description of the system-wide discount factor with the proposed operational adjustment to the Reserve Discount Factor (RDF) in the Physical Responsive Capability (PRC) calculation, and aligns the posting for RDFs applicable to both Generation Resources and Load Resources. 04/18/2016 ERCOT Yes 6.5.7.5, 6.7.5 Approved
10/01/2016
NPRR767 Commitment by RUC for Long Lead Time Resource This Nodal Protocol Revision Request (NPRR) changes the eligibility check for the startup portion of the Reliability Unit Commitment (RUC) Make-Whole Payment. Resources with lead times longer than six hours may submit a Settlement dispute to have their Resource-specific startup times considered when determining eligibility for Startup Costs to be included in the RUC Make-Whole Payment calculation. 04/21/2016 ERCOT No 5.6.2 Approved
09/01/2016
NPRR768 Revisions to Real-Time On-Line Reliability Deployment Price Adder Categories This Nodal Protocol Revision Request (NPRR) revises the categories of ERCOT initiated actions that trigger the Real-Time On-Line Reliability Deployment Price Adder pricing run in order for prices to reflect current system conditions. 04/21/2016 ERCOT No 6.3.2, 6.5.7.3.1 Approved
05/31/2018
NPRR769 Alignment with VCMRR013, Clarifications to Verifiable Cost Appeals Process This Nodal Protocol Revision Request (NPRR), clarifies Alternative Dispute Resolution (ADR) language to clarify the use of the ADR process subsequent to an appeal of ERCOT denial of verifiable costs in accordance with Verifiable Cost Manual Section 12, Appealing Rejected Verifiable Costs. In addition, revisions are proposed to Section 1, Overview, to clarify the confidentiality of data submitted in connection with a verifiable cost appeal. 04/26/2016 ERCOT No 1.3.1.1, 20.2.2 Approved
11/01/2016
NPRR770 Addition of Outaged Resource Capacity to the Ancillary Services Capacity Monitor This Nodal Protocol Revision Request (NPRR) adds visibility and situational awareness to the market by posting the aggregate quantity of Resources that are telemetered as OUT, OUTL or EMR to the Ancillary Service Capacity Monitor. 04/28/2016 Morgan Stanley Capital Group, Inc. No 3.2.3 Approved
11/03/2016
NPRR771 Clarifications to New ESI ID Creation Process This Nodal Protocol Revision Request (NPRR) clarifies that the Transmission and/or Distribution Service Providers (TDSPs) must ensure that an Electric Service Identifier (ESI ID) has been created in the ERCOT systems prior to initiating electric service at a Premise. As a result, related transactional, billing and out-of-sync issues may be avoided. 05/04/2016 Texas SET Working Group No 15.4.1.4 Approved
09/01/2016
NPRR773 Broadening Scope of Acceptable Letter of Credit Issuers This Nodal Protocol Revision Request (NPRR) broadens the scope of acceptable letter of credit issuers to include other financial institutions. 05/09/2016 GSEC No 16.11.3 Approved
01/01/2017
NPRR774 Remove Duplicate Language to Calculate Seasonal Transmission Loss Factors This Nodal Protocol Revision Request (NPRR) removes duplicate language regarding calculation of Seasonal Transmission Loss Factors (TLFs). 05/11/2016 ERCOT No 13.2.4, 13.4.1 Approved
09/01/2016
NPRR775 Enhanced Implementation of Limits for Fast Responding Regulation Service This Nodal Protocol Revision Request (NPRR) more thoroughly implements the limits on Fast Responding Regulation Service (FRRS) that can be awarded or provided by restricting self-arrangement from Resources providing FRRS as well as providing rules concerning Real-Time scheduling. NPRR581, Add Fast Responding Regulation Service as a Subset of Regulation Service, added limits of 65 MW to Fast Responding Regulation Up Service (FRRS-Up) and 35 MW to Fast Responding Regulation Down Service (FRRS-Down) but was silent on some implementation details of these limits, namely on self-arrangement in the Day-Ahead Market (DAM) and restrictions on providing the service in Real-Time without an associated DAM award. 05/13/2016 ERCOT No 3.16, 4.4.7.1 Approved
09/14/2017
NPRR776 Voltage Set Point Communication This Nodal Protocol Revision Request (NPRR) aligns language with currently used verbal communication practices between Transmission Service Providers (TSP), Qualified Scheduling Entities (QSE), and Generation Resources. This NPRR also identifies a new telemetered data point (Voltage Set Point) and identification of the Point of Interconnection (POI) kV measurements to be used relative to the Voltage Set Point which is to be provided by the TSP to ERCOT, the QSE, and the Generation Resource. 05/18/2016 ERCOT No 3.10.7.5.2, 6.5.7.7 Approved
06/01/2018
NPRR778 Modifications to Date Change and Cancellation Evaluation Window This Nodal Protocol Revision Request (NPRR) modifies the evaluation window for date changes and cancellations currently performed by ERCOT systems; and removes the one Retail Business Day evaluation window for date changes and cancellations in order to replace manual processes with transactional solutions. 05/23/2016 Texas SET Working Group No 15.1.7, 15.1.8 Approved
12/11/2017
NPRR779 Clarifies References to Texas Reliability Entity and Independent Market Monitor This Nodal Protocol Revision Request (NPRR) clarifies references to the Texas Reliability Entity (Texas RE) and the Independent Market Monitor (IMM). The Nodal Protocols currently refer to the Texas Reliability Entity in both its capacity as the North American Electric Reliability Corporation (NERC) Regional Entity and the Public Utility Commission of Texas (PUCT) Reliability Monitor, a new term recently added to P.U.C SUBST. R. § 25.503, Oversight of Wholesale Market Participants. This NPRR modifies uses of the term “Texas Reliability Entity” to more accurately reflect distinct references to the NERC Regional Entity and the PUCT Reliability Monitor, and introduces the defined term “Reliability Monitor” per P.U.C SUBST. R. § 25.503. This NPRR also removes the 24-hour deadline by which ERCOT must notify the Reliability Monitor of a failure to provide Ancillary Services, and clarifies that the IMM is an included party in several provisions related to the ERCOT stakeholder process. 05/27/2016 ERCOT No 2.1, 8.1.1.3, 8.1.1.4, 8.1.1.4.2, 8.1.1.4.3, 21.1, 21.1, 21.3, 21.4.4, 21.4.5, 21.4.11.1, 21.4.11.2, 21.4.11.3 Approved
11/01/2016
NPRR781 Updates to Nodal Protocol Section 18, Load Profiling, to Align with Current Market Processes With the proliferation of Advanced Metering Systems (AMS) in the ERCOT Market, this Nodal Protocol Revision Request (NPRR) updates Protocol language related to Load Profiling to clarify purpose and definitions, update current processes and methodologies, and remove outdated processes and practices. 06/01/2016 Profiling Working Group (PWG) No This NPRR includes dozens of changes within Section 18 of the Protocols. Please see the NPRR submission form under "Key Documents" for a complete list of impacted Sections. Approved
11/01/2016
NPRR782 Settlement of Infeasible Ancillary Services Due to Transmission Constraints This Nodal Protocol Revision Request (NPRR) removes inconsistencies in Protocol language with a proposed change to the equations governing the Settlement of Ancillary Services for Resources that are not able to deliver on their Ancillary Service responsibilities due to transmission constraints. ERCOT collaborated with members of the Wholesale Market Subcommittee (WMS) and Qualified Scheduling Entity (QSE) Managers Working Group (QMWG) to address the inconsistencies in the Protocols and develop a proposal for the Settlement of infeasible Ancillary Services due to transmission constraints. ERCOT has drafted an NPRR based on the following Settlement principles: 1) The QSE with the infeasible Ancillary Service(s) will be charged the Day-Ahead Market (DAM) clearing price regardless whether the responsibility was awarded, self-arranged, or traded, and regardless of whether a Supplemental Ancillary Service Market (SASM) is executed. 2) The Ancillary Service replacement cost, if any, is charged to all QSEs based on the current Settlement allocation (Load Ratio Share (LRS) less self-arranged). 3) The QSE with the Ancillary Service infeasibility is not directly charged the full replacement cost, if any. 4) All revenues collected from charges to QSEs due to infeasible Ancillary Service(s) are paid to all QSEs based on the current Settlement allocation (LRS less self-arranged). 06/01/2016 ERCOT No 4.4.7.4, 5.5.2, 6.4.7, 6.4.9.1, 6.4.9.1.2, 6.4.9.1.3, 6.4.9.2, 6.4.9.2.3, 6.7.2.1 (new), 6.7.4, 9.5.3 Approved
11/01/2017
NPRR783 Revision of Network Operations Model Consistency Audit Requirement This Nodal Protocol Revision Request (NPRR) revises an outdated requirement for an independent audit to confirm consistency between ERCOT operations models, yet retains the underlying requirement of model consistency. 06/01/2016 ERCOT No 3.10 Approved
01/01/2017
NPRR785 Synchronizing WGR and PVGR COPs with Short Term Wind and PhotoVoltaic Forecasts This Nodal Protocol Revision Request (NPRR) enables ERCOT to automatically prepopulate Current Operating Plans (COPs) for Wind-powered Generation Resources (WGRs) and PhotoVoltaic Generation Resources (PVGRs) with most recent forecast for the next 168 hours. ERCOT would continue to require Qualified Scheduling Entities (QSEs) representing WGRs or PVGRs to either submit the prepopulated forecast as COP by default or submit a lower number as applicable. 06/08/2016 ERCOT No 3.2.5, 3.9.1 Approved
03/09/2017
NPRR786 Consumption Data Adjustments for Negative Load This Nodal Protocol Revision Request (NPRR) corrects the allocation of Transmission Losses, Distribution Losses and Unaccounted for Energy (UFE) so that instances of negative Load do not result in loss or UFE allocations. 06/23/2016 ERCOT No 11.4.5, 11.4.6, and 11.4.6.4 Approved
05/11/2017
NPRR787 Removal of Recipient Name Requirement for VDI Confirmations This Nodal Protocol Revision Request (NPRR) removes the requirement for the Qualified Scheduling Entity (QSE) recipient of a Verbal Dispatch Instruction (VDI) confirmation to include the name of the individual that received the VDI confirmation within the electronic acknowledgement. The current systems utilized for the VDI confirmations do not support this requirement. 06/23/2016 ERCOT No 6.5.8 Approved
11/01/2016
NPRR788 RMR Study Modifications This Nodal Protocol Revision Request (NPRR) modifies the requirement for Reliability Must-Run (RMR) studies to use anticipated peaks. 07/07/2016 LCRA Yes 3.14.1.2 and 3.14.1.2.1 Approved
10/12/2016
NPRR789 Publish All Mid-Term Load Forecast Results ERCOT has several Mid-Term Load Forecasts (MTLFs) per Weather Zone, but only one at a time is published for consumption by Market Participants. That published forecast can vary from hour to hour based on the model selected by ERCOT Operations. This Nodal Protocol Revision Request (NPRR) publishes the results of all of ERCOT’s MTLFs, as well as indicating which forecast is currently in use by ERCOT Operations. 07/08/2016 Citigroup Energy, Inc. No 6.3.2 Approved
06/29/2017
NPRR790 Addition of Phase Angle Limits to the Network Operations Model This Nodal Protocol Revision Request (NPRR) adds phase angle limitations to the ERCOT Network Operations Modeling process. 07/20/2016 ERCOT No 3.10.7.1.3 Approved
02/01/2017
NPRR791 Clarifications to IEL, MCE and Aggregate Amount Owed by Breaching Party This Nodal Protocol Revision Request (NPRR) revises the Initial Estimated Liability (IEL) description to clarify that for generation the IEL is based on estimated Qualified Scheduling Entity (QSE)-to-QSE energy sales. A parallel change has been made to the Counter-Party Credit Application. This NPRR also restores the IEL for traders, inadvertently omitted from NPRR741, Clarifications to TPE and EAL Credit Exposure Calculations, and originally defined in NPRR620, Collateral Requirements for Counter-Parties with No Load or Generation. Additionally, this NPRR corrects subscripts in the Minimum Current Exposure (MCE) formula that were inadvertently overwritten by NPRR743, Revision to MCE to Have a Floor For Load Exposure; modifies the RTQQNET and DARTNET in the gray boxed language for NPRR741 to match the current baseline Protocols; and simplifies the MCE formula. This NPRR also removes an obsolete reference to “Deferred Invoice Exposure”, a concept removed by NPRR728, Removal of Language and Definitions Related to NPRR484, Revisions to Congestion Revenue Rights Credit Calculations and Payments, and NPRR554, Clarification of Future Credit Exposure Calculation. 07/27/2016 ERCOT No 16.11.4.1, 16.11.4.2, 16.11.6.1.3 Approved
01/01/2017
NPRR792 Changing Special Protection System (SPS) to Remedial Action Scheme (RAS) This Nodal Protocol Revision Request (NPRR) aligns the Nodal Protocols with North American Electric Reliability Corporation (NERC) Reliability Standard definition for Special Protection System (SPS) and for consistency uses Remedial Action Scheme (RAS) and Automatic Mitigation Plan (AMP) where applicable in place of SPS. 07/27/2016 ERCOT No 2.1, 2.2, 3.3.2, 3.10.7.4, 3.14.1, 5.5.1, 6.5.1.1, 6.5.7.1.10, 6.5.7.10, 7.5.5.3, 7.5.5.4 Approved
04/01/2017
NPRR793 Clarifications to RMR RUC Commitment and Other RMR Cleanups The purpose of this Nodal Protocol Revision Request (NPRR) is to: Introduce a process change that ensures Reliability Must-Run (RMR) Resources are not accidentally Reliability Unit Commitment (RUC) committed before other units; Bring RMR Settlement language in line with Board-approved NPRR442, Energy Offer Curve Requirement for Generation Resources Providing Reliability Must-Run Service; Clarify the operational practice that ERCOT will submit Energy Offer Curves for RMR Resources as opposed to Output Schedules; Clarify activities during the contracting and reimbursement process; Require RMR Unit owners to provide monthly updated budget information during the term of the RMR Agreement; Align with the shortened settlements timeline by requiring that actual cost and fuel data be submitted by the 16th day of the month following a given month to be timely for final; Make minor corrections to two RMR Settlement formulas so that they comport with the original intent and the current implementation; and Make other non-substantive revisions to clarify Protocol language for RMR Resources. The current process for committing an RMR Resource lacks clarity and could allow the RUC engine to commit an RMR Resource before other Resources. This would require monitoring by operations personnel to detect and correct. This NPRR would require the Qualified Scheduling Entity (QSE) to show a Resource Status of EMR which makes the Resource unavailable to the RUC engine and requires an operator to manually commit the Resource. NPRR442 removed the ability for RMR Resources to be Day-Ahead Market (DAM) committed, but did not remove the related Settlement language. This NPRR removes Settlement language related to DAM-committed RMR Units. This NPRR also cleans up existing RMR formulas by correcting brackets in paragraph (1) of Section 6.6.6.2, and adding a summation symbol to paragraph (2) of Section 6.6.6.3 to show the roll-up of 15-minute data to hourly data. These corrections match the current system implementation so no changes to ERCOT systems will be needed for these clarifications. Further revisions are included in this NPRR to provide additional clarity to the RMR contracting and reimbursement processes: Where the RMR Unit owner is required to provide alternatives for Outage Maintenance Costs and Non-Outage Maintenance Costs, an affirmation by the RMR Unit owner would be submitted in instances where no reasonable alternatives are available; Reported actual Eligible Costs must be categorized consistently with budgeted Eligible Costs to ensure accurate Eligible Cost true-up; and the “Hourly Rolling Equivalent Availability Factor” of the RMR Unit, which is used to calculate the Incentive Factor payment, is specified to be based only on hours in which the RMR Unit is intended to be available under the RMR Agreement to better align with instances in which availability is required for non-contiguous time periods. 07/27/2016 ERCOT Yes 1.3.1.2, 3.9.1, 3.14.1.10, 3.14.1.11, 3.14.1.12, 3.14.1.13, 3.14.1.15, 3.14.1.16, 4.1, 4.2.1.1, 4.4.8, 4.6.2.1, 4.6.2.3.1, 4.6.2.3.2, 5.5.3, 6.4.2, 6.4.2.3, 6.4.4, 6.6.6.1, 6.6.6.2, 6.6.6.3, 6.6.6.5, 6.6.10, 7.9.3.1, 9.19.1, 12.2 Approved
10/12/2016
NPRR794 Relocation of Unregistered DG Reporting Requirements This Nodal Protocol Revision Request (NPRR), in conjunction with COPMGRR044, relocates unregistered Distributed Generation (DG) reporting requirements from the Commercial Operations Market Guide to the Protocols. 08/01/2016 ERCOT No 3.2.5.1 (new), 3.2.5.2 (new), 3.2.5.3 (new), 10.2.2, 16.5 Approved
03/01/2017
NPRR795 Provisions for Refunds of Capital Contributions Made in Connection with an RMR Agreement This Nodal Protocol Revision Request (NPRR) creates a mechanism by which capital expenditures funded by ERCOT under a Reliability Must-Run (RMR) Agreement may be refunded subsequent to the termination of the RMR Agreement. If the Generation Resource returns to commercial operations, the refund is based on depreciated book value of the capitalized expenditures. Otherwise the refund is based on the salvage value associated with the capitalized expenditures. This is similar to refunds of capital contributions that may be required for capacity procured under the provisions of Section 6.5.1.1, ERCOT Control Area Authority. 08/02/2016 ERCOT Yes 3.14.1.15 (new) and 6.6.6.6 (new) Approved
10/12/2016
NPRR796 Extended Character Set Clean Up This Nodal Protocol Revision Request (NPRR) specifies that character set validations are available within each Texas Standard Electronic Transaction (SET) Implementation Guide. 08/10/2016 ERCOT No 19.5 and 19.5.1 Approved
07/01/2017
NPRR797 Actual Load by Forecast Zone Report and Display This Nodal Protocol Revision Request (NPRR) creates a new report and display for actual system Load by Forecast Zone, similar to the existing report and display for actual system Load by Weather Zone. 08/10/2016 Reliant Energy Retail Services LLC No 6.3.2 Approved
06/29/2017
NPRR799 Updates to Outages of Transmission Facilities This Nodal Protocol Revision Request (NPRR) introduces requirements for submitting updates to the Outage Scheduler for completed or started Outages on Transmission Facilities. 08/25/2016 DC Energy Texas No 3.1.2, 3.1.5.13 Approved
05/01/2017
NPRR800 Revisions to Credit Exposure Calculations to Use Electricity Futures Market Prices This Nodal Protocol Revision Request (NPRR) revises the Real-Time Liability Extrapolated (RTLE) and Day-Ahead Liability Extrapolated (DALE) factors used in the Counter-Party Estimated Aggregate Liability (EAL) and Minimum Current Exposure (MCE) calculations to use electricity futures mark-to-market prices for estimating forward risk. Forward adjustment factors for Real-Time Market (RTM) exposure and Day-Ahead Market (DAM) exposure are calculated using a ratio of futures average price to historic average price of a reference hub. Limits can be set so that forward adjustment factors would fall in a specified range by using a set of parameters. The parameters could be updated through stakeholder review and approval process. 08/30/2016 ERCOT Yes 16.11.4.1, 16.11.4.3, 16.11.4.3.3, 16.11.4.7 Approved
02/07/2018

All sections except for Section 16.11.4.7

NPRR801 Non-Controllable Load Resource MW in PRC This Nodal Protocol Revision Request (NPRR) revises the Physical Responsive Capability (PRC) calculation from including the Responsive Reserve (RRS) service MW responsibility from Load Resources controlled by high-set under frequency relays to including all MW from these Load Resources from their current output to their Low Power Consumption (LPC) capped at 150% of the Qualified Scheduling Entity’s (QSE’s) RRS responsibility from non-Controllable Load Resources. The Operating Reserve Demand Curve (ORDC) reserves are adjusted in the Other Binding Document (OBD) to align with the PRC change. The Ancillary Service imbalance Settlement is changed to align with the change to the ORDC reserves. 08/31/2016 ERCOT No 6.5.7.5, 6.7.5 Approved
06/29/2017
NPRR802 Settlements Clean-up The purpose of this Nodal Protocol Revision Request (NPRR) is to clarify current practices and clean up Protocol language. There are no system changes and no changes to current Settlement practices or concepts in this NPRR. This NPRR: 1. Clarifies how Reliability Unit Commitment (RUC) Resources that have opted out of RUC Settlement are treated in the calculation of Real-Time On-Line Reserve Capacity; 2. Codifies the methodology to be used when Base Point data has been corrupted due to issues with ERCOT’s Energy Management System (EMS); 3. Clarifies that Resources receiving Emergency Base Points are not charged for Base Point deviation during the relevant Settlement Interval(s); 4. Corrects descriptions of variables used in Ancillary Service imbalance Settlement to agree to the associated Settlement formulas; and 5. Cleans up references in Section 9, Settlement and Billing, that refer to paragraphs of Section 7.9.3.3, Shortfall Charges to CRR Owners, that have been removed from the Protocols. 09/26/2016 ERCOT No 6.6.5.3, 6.6.9, 6.7.5, 9.2.3, 9.5.3, 9.19 Approved
05/01/2017
NPRR803 Remove Grey-boxed Language from NPRR439, Updating a Counter-Party’s Available Credit Limit for Current Day DAM This Nodal Protocol Revision Request (NPRR) removes provisions of NPRR439, Updating a Counter-Party’s Available Credit Limit for Current Day DAM, from the ERCOT Protocols. All provisions of NPRR439 remaining in Protocols are currently grey-boxed. 09/28/2016 ERCOT No 16.11.4.6.2 Approved
01/01/2017
NPRR804 Remove Posting Requirement for Private Use Network Diagrams This Nodal Protocol Revision Request (NPRR) clarifies that ERCOT should post both a system wide network model and a set of station one-line diagrams. It also clarifies that the model posting does not disclose data about Private Use Networks. 09/28/2016 ERCOT No 3.10.3 Approved
05/01/2017
NPRR805 Clarification for Multi-Month CRR Auction Offers This Nodal Protocol Revision Request (NPRR) clarifies the criteria for Congestion Revenue Right (CRR) offers that are submitted by CRR Account Holders for CRR Auctions that are part of a CRR Long-Term Auction Sequence. Specifically, it makes clear that CRR Account Holders are able to submit multi-month CRR offers for those auctions as long as the months are all consecutive, are within the period covered by the auction, and are months in which the CRR Account Holder has ownership of the CRR. 10/06/2016 ERCOT No 7.5.2.1 Approved
03/01/2017
NPRR806 Clarification for Designation of Capacity or Refund PCRRs This Nodal Protocol Revision Request (NPRR) clarifies how Non-Opt-In Entities (NOIEs) are to designate whether they want to accept the refund option or the capacity option for their Pre-Assigned Congestion Revenue Right (PCRR)-eligible Resources. Specifically, it makes clear that the choice of refund or capacity is for the entire PCRR allocation year for each eligible Resource. NOIEs cannot select one option (refund or capacity) for some months of the year and the other option for the remaining months. 10/06/2016 ERCOT No 7.4.2.2 Approved
03/01/2017
NPRR808 Three Year CRR Auction This Nodal Protocol Revision Request (NPRR) extends the Congestion Revenue Right (CRR) Auction process into the third year forward; revises the percentages sold in the CRR Long-Term Auction Sequence; and makes aligning changes to the timetable for modifying Load Zones. 11/15/2016 Morgan Stanley Capital Group, Inc No 2.1, 3.4.2, 3.4.3, and 7.5.1 Approved
09/01/2017
NPRR809 GTC or GTL for New Generation Interconnection This Nodal Protocol Revision Request (NPRR) establishes Initial Energization and Initial Synchronization as defined terms, changes the status of Protected Information used in an interconnection study, adds a reference to a quarterly stability assessment for interconnecting Generation Resources when evaluating the need for a Generic Transmission Constraint (GTC), and clarifies the requirements to be met for a Generation Resource prior to Initial Synchronization. 11/15/2016 PLWG No 2.1, 1.3.3, 3.10.1, 3.10.7.6, 3.11.4.4, 3.11.6, 16.5 Approved
08/01/2017

All sections except Section 3.10.7.6(7) and 16.5(4)(c)

02/01/2018

Section 16.5(4)(c)

04/05/2019

Section 3.10.7.6(7)

NPRR810 Applicability of RMR Incentive Factor on Reservation and Transportation Costs Associated with Firm Fuel Supplies This Nodal Protocol Revision Request (NPRR) removes the applicability of the Reliability Must-Run (RMR) Incentive Factor to reservation and transportation costs associated with firm fuel supplies, which should be considered fuel costs. In addition, this NPRR separates costs in the RMR Standby Payment equation in Section 6.6.6.1 based on Incentive Factor applicability. 12/16/2016 ERCOT No 3.14.1.13 and 6.6.6.1 Approved
05/01/2017

Section 3.14.1.13

02/07/2018

All remaining sections

NPRR812 Alignment of Currently Published Reports This Nodal Protocol Revision Request (NPRR) clarifies language related to short-term system adequacy reports, aligns Protocol language with current ERCOT practices and Public Utility Commission of Texas (PUCT) rules regarding the posting of Resource and Load information, and modifies the Protocol requirement to post a Reliability Unit Commitment (RUC) initial conditions report to only include the Hourly RUC (HRUC) process as originally intended in NPRR314, Requirement to Post Generation Resources Temporal Constraints. 01/04/2017 ERCOT No 3.2.3, 3.2.5, 5.1 Approved
12/07/2017
NPRR813 Updated Terminology Related to Annual Market Settlement Operations Audits This Nodal Protocol Revision Request (NPRR) replaces references to Statement on Standards for Attestation Engagements, No. 16 (SSAE16) within the Protocols with Service Organization Controls (SOC) in relation to the annual ERCOT market Settlement audits. 01/11/2017 ERCOT No 1.4.3.1, 1.4.4, and 8.2 Approved
05/01/2017
NPRR815 Revise the Limitation of Load Resources Providing Responsive Reserve (RRS) Service This Nodal Protocol Revision Request (NPRR) revises the current limit of 50% to 60%, and specifies that Primary Frequency Response from Resources shall not be less than 1150 MW. 01/24/2017 Morgan Stanley No 3.16 Approved
06/01/2018
NPRR817 Create a Panhandle Hub This Nodal Protocol Revision Request (NPRR) creates a trading Hub “Panhandle 345 kV Hub (Pan 345)” in the ERCOT panhandle. The NPRR also excludes this new Hub from the existing ERCOT-wide Hub average and Bus average calculations in Sections 3.5.2.5 and 3.5.2.6. 02/01/2017 DC Energy No 3.5.2.5 (new), 3.5.2.5, and 3.5.2.6 Approved
04/05/2019
NPRR818 Allow Curtailment of Certain DC Tie Load Prior to Declaring Emergency Condition This Nodal Protocol Revision Request (NPRR) allows ERCOT to curtail certain Direct Current Tie (DC Tie) Load during a Watch prior to declaring an Emergency Condition. 02/01/2017 Rainbow Energy Marketing Corporation Yes 3.10.7.7 (new), 4.4.4, 6.5.9.3.3, and 6.5.9.3.4 Approved
04/05/2017
NPRR819 Modification of Non-Price Error Resettlement Thresholds and Resettlement Clean-Ups This Nodal Protocol Revision Request (NPRR) removes language referencing “data errors” for resettlement of the Day-Ahead Market (DAM) and the Real-Time Market (RTM); gives the ERCOT Board authority to direct a DAM resettlement parallel to its authority to direct RTM resettlement; removes references to undefined “declarations” of resettlements; and fixes a semantics error. 02/03/2017 ERCOT No 9.2.5, 9.2.6, 9.5.6, 9.5.7 Approved
08/09/2018
NPRR820 Clarification of Aggregate Generation Resource (AGR) Definition This Nodal Protocol Revision Request (NPRR) aligns the definition of an Aggregate Generation Resource (AGR) with paragraph (1) of Section 16.5, Registration of a Resource Entity, which allows a Resource Entity to submit a proposal to register the aggregation of generators, with the exception of Intermittent Renewable Resources (IRRs), as an AGR. 02/22/2017 ERCOT No 2.1 and 16.5 Approved
07/01/2017
NPRR821 Elimination of the CRR Deration Process for Resource Node to Hub or Load Zone CRRs This Nodal Protocol Revision Request (NPRR) eliminates the Congestion Revenue Right (CRR) deration process. 03/13/2017 DC Energy Texas No 4.5.1, 7.9.1.1, 7.9.1.2, 7.9.1.3, 7.9.1.5, and 7.9.1.6 Approved
07/01/2019
NPRR822 Designate Resource Node Procedure an Other Binding Document and Adjust the Process for Retiring Resource Nodes This Nodal Protocol Revision Request (NPRR) designates the “Procedure for Identifying Resource Nodes” an Other Binding Document. This document already requires approval within the Protocols by a TAC subcommittee, and as such, it is more properly an Other Binding Document than a Business Practice Manual. This NPRR also adjusts the process for handling Resource Nodes for retired Resources by allowing ERCOT to convert Congestion Revenue Rights (CRRs) at a retired Resource’s Resource Node to a different, nearby Settlement Point. This will allow Transmission Service Providers (TSPs) to remove equipment from the model, as needed, to keep the model aligned with operations. 03/20/2017 ERCOT No 2.1 ,3.8.2, and 3.10.3.1 Approved
09/01/2017
NPRR823 Amend the Definition of an Affiliate This Nodal Protocol Revision Request (NPRR) amends the definition of an Affiliate to reflect the exemption contained in the Public Utility Regulatory Act (PURA), TEX. UTIL. CODE ANN. § 11.0042 (Vernon 1998 & Supp. 2007). 03/27/2017 Engie NA No 2.1 Approved
09/01/2019
NPRR824 Alignment of EEA Level 3 with NERC Reliability Standards EOP-011-1 and BAL-001-2 This Nodal Protocol Revision Request (NPRR) aligns Protocol language with the following North American Electric Reliability Corporation (NERC) Reliability Standards: 1) Attachment 1, Energy Emergency Alerts, of EOP-011-1, Emergency Operations, requires ERCOT, as the Reliability Coordinator, to declare an Energy Emergency Alert (EEA) Level 3 if ERCOT is unable to maintain its Physical Responsive Capability (PRC) above a minimum Contingency Reserve requirement of 1,375 MW. This NPRR adds language to address this standard; and 2) BAL-001-2, Real Power Balancing Control Performance, requires clock-minute average system frequency to not stay below 59.91 Hz for greater than 30 consecutive minutes. This NPRR increases the current EEA Level 3 frequency threshold from 59.80 Hz to 59.91 Hz and modifies EEA Level 2 language to include a timing component of being below 59.91 Hz for 15 consecutive minutes or more. These tiered timing milestones will align progressively more aggressive actions as the 30 consecutive minute requirement is approached to address this standard. 03/29/2017 ERCOT No 6.5.9.4, 6.5.9.4.1, and 6.5.9.4.2 Approved
07/01/2017
NPRR825 Require ERCOT to Issue a DC Tie Curtailment Notice Prior to Curtailing any DC Tie Load This Nodal Protocol Revision Request (NPRR) requires ERCOT to issue a Direct Current Tie (DC Tie) Curtailment Notice prior to curtailing Direct Current Tie Load. 04/05/2017 Rainbow Energy Marketing Corporation No 2.1, 3.10.7.7, 4.4.4 , 6.5.9.3.3, and 6.5.9.3.4 Approved
10/01/2018

All sections except Section 3.10.7.7

NPRR826 Mitigated Offer Caps for RMR Resources This Nodal Protocol Revision Request (NPRR) creates a new process for determining the Mitigated Offer Cap for Reliability Must-Run (RMR) Resources. It uses market design principles to allow the RMR Resource to be Dispatched but still be above other Resources that solve the same constraint. 04/11/2017 Citigroup Energy, Inc. No 2.1, 3.19.4, 4.4.9.4.1, 4.4.9.4.3 (new), and 5.6.1 Approved
NPRR827 Disallow PTP Obligation Bid Award where Clearing Price exceeds Bid Price by $0.25/MW per hour This Nodal Protocol Revision Request (NPRR) disallows ERCOT from settling PTP Obligations in the DAM where the corresponding clearing price is greater than the bid price for the PTP Obligation by $0.25/MW per hour. 04/11/2017 Crescent Power, Inc. Yes 4.5.1 Approved
06/29/2017
NPRR829 Incorporate Real-Time Non-Modeled Telemetered Net Generation by Load Zone into the Estimate of RTL This Nodal Protocol Revision Request (NPRR) provides a mechanism for a Qualified Scheduling Entity (QSE) with non-modeled generation to inform ERCOT in a timely manner the net generation to the ERCOT grid from their Non-Modeled Generators so that the output can be considered in the estimate of RTL. Absent this NPRR, output from Non-Modeled Generators is not included in estimating the QSE’s RTL, and the QSE is required to post a superfluous amount of collateral. 04/26/2017 Enchanted Rock / Electranet QSE I, LLC No 1.3.1.1, 6.3.2, 6.5.5.2, 16.11.4.3.2 Approved
NPRR830 Revision of 4-Coincident Peak Methodology This Nodal Protocol Revision Request (NPRR) revises the basis of ERCOT’s calculation of the 4-Coincident Peak (4-CP) to a manner consistent with the North American Electric Reliability Corporation (NERC) net energy for Load methodology. 04/26/2017 ERCOT Yes 9.17.1 Approved
06/14/2017
NPRR831 Inclusion of Private Use Networks in Load Zone Price Calculations This Nodal Protocol Revision Request (NPRR) updates market systems in order to calculate a net Load value for each Private Use Network that will be included in the Load Zone price for all markets, Congestion Revenue Rights (CRRs), Day-Ahead Market (DAM), and Real-Time Market (RTM), when the Load is a net consumer from the ERCOT Transmission Grid. This NPRR also clarifies that Private Use Network net Load will be redacted from the Electrical Bus Load distribution factors and other information necessary to forecast Electrical Bus Loads that is posted to the Market Information System (MIS) Public Area pursuant to Section 6.3.2. 05/03/2017 ERCOT Yes 4.5.1, 6.3.2, 6.6.1.2, and 7.5.1 Approved
11/02/2017

Sections 6.3.2 and 6.6.1.2

11/19/2018

All remaining sections

NPRR833 Modify PTP Obligation Bid Clearing Change This Nodal Protocol Revision Request (NPRR) adjusts the language introduced by NPRR827, Disallow PTP Obligation Bid Award where Clearing Price exceeds Bid Price by $0.25/MW per hour, to account for the steady state that will result when ERCOT implements the long-term, automated change affecting Point-to-Point (PTP) Obligation bid clearing. With NPRR827, ERCOT introduced a manual workaround to remove certain awards that were considered in the optimization, which negatively impacts counterflow in DAM Settlement. With this NPRR, ERCOT will update the Day-Ahead Market (DAM) optimization engine to address the situation where a contingency disconnects a Resource Node. Instead of ignoring the PTP MWs in contingency analysis if that PTP sources or sinks at the disconnected point, the engine will “pick up” those MWs and distribute them to other nodes. The Settlement Point Price will include that “pick up” Shift Factor in the price calculation. In this implementation, the optimization price and the Settlement price will be equal (within one cent for rounding). 05/31/2017 ERCOT Yes 4.5.1 Approved
04/05/2019
NPRR834 Clarifications for Repossessions of CRRs by ERCOT This Nodal Protocol Revision Request (NPRR) clarifies processes associated with repossession of Congestion Revenue Rights (CRRs) by ERCOT in circumstances where there has been a Payment Breach or other Default by a Market Participant by: 1. Specifying data transparency requirements; 2. Documenting the disposition of auction revenue funds in excess of amounts owed to ERCOT by the Market Participant; 3. Clarifying that the one-time auction bids must be positive; and allowing immediate transfer of ownership of CRRs to the winning bidder in a one-time CRR auction if this is necessary to ensure the correctness of the inventory for subsequent CRR auctions. 06/07/2017 ERCOT No 7.5.3.1, 7.5.5.3, 16.11.6.1.4, 16.11.6.1.5, Approved
01/01/2018
NPRR836 Incorporation of Other Binding Document Forms into Protocol Section 23 This Nodal Protocol Revision Request (NPRR) incorporates the following Other Binding Documents into the Protocols as a new Section 23, Forms. Currently, changes to these forms are made unilaterally by ERCOT: Congestion Revenue Right (CRR) Account Holder Application Form, Load Serving Entities (LSE) Application Form, Managed Capacity Declaration Form, Market Participant Agency Agreement Form, Notice of Change of Information, QSE Agency Agreement Form, QSE Application Form, Qualified Scheduling Entity Acknowledgement, Resource Entity Registration Form, Transmission/Distribution Service Provider Registration Form, and WAN Agreement. This NPRR also allows changes to these Section 23 forms to be made using the Administrative NPRR process. 06/21/2017 ERCOT No 3.1.4.1, 3.6.2, 3.19.1, 16.3, 16.3.1.1, 16.3.2, 16.4, 16.8.1, 16.8.2, 21.1, 23 A (new), 23 B (new), 23 C (new), 23 D (new), 23 E (new), 23 F (new), 23 G (new), 23 H (new), 23 I (new), 23 J (new), and 23 K (new) Approved
11/01/2017
NPRR837 Regional Planning Group (RPG) Process Reform This Nodal Protocol Revision Request (NPRR) changes the Regional Planning Group (RPG) process by updating the Tier classification rules and also includes other RPG-related enhancements and clarifications. 06/28/2017 ERCOT No 3.11.1, 3.11.2, 3.11.4.1, 3.11.4.3, 3.11.4.4, 3.11.4.5, 3.11.4.6, 3.11.4.7, 3.11.4.8, 3.11.4.9, 3.11.4.10, and 3.11.4.11 (new) Approved
07/01/2018

All sections except for 3.11.4.3(1)(c)(ii) and 3.11.4.3(1)(d)

07/01/2020

All remaining sections

NPRR838 Updated O&M Cost for RMR Resources This Nodal Protocol Revision Request (NPRR) includes the following revisions to improve the effectiveness of the Reliability Must-Run (RMR) process: (1) deletes the requirement for an RMR Unit to submit O&M estimates as described in paragraph (12) of Section 5.6.1 given that the RMR Resource Entity is obligated to submit this data as described in paragraph (4)(iv) of Section 3.14.1.11, Budgeting Eligible Costs; and (2) cancels the requirement for RMR Resources to submit quarterly O&M updates. 07/05/2017 ERCOT No 5.6.1 Approved
03/01/2020
NPRR839 Clarification of ERCOT Forwarding of Consumption and Other Data This Nodal Protocol Revision Request (NPRR) updates Section 10, Metering, to clarify that upon receiving meter data transactions from a Transmission Service Provider (TSP) or Distribution Service Provider (DSP), ERCOT will forward the transaction/s to the Competitive Retailer (CR), as designated by the TSP or DSP. 07/18/2017 ERCOT No 10.12.3 Approved
01/01/2018
NPRR840 Implementation of Infeasible Ancillary Service Protocol Revisions This Nodal Protocol Revision Request (NPRR) synchronizes the implementation of NPRR782, Settlement of Infeasible Ancillary Services Due to Transmission Constraints, by removing the two hour advance notice period inadvertently left in Protocol language when NPRR782 was approved. 07/25/2017 ERCOT No 6.4.9.1.2, 6.4.9.2, and 6.7.2.1 Approved
11/01/2017
NPRR841 Real-Time Adjustments to Day-Ahead Make Whole Payments due to Ancillary Services Infeasibility Charges This Nodal Protocol Revision Request (NPRR) determines, in Real-Time, the Day-Ahead Make-Whole Payment by incorporating the Ancillary Services infeasibility charge approved with NPRR782, Settlement of Infeasible Ancillary Services Due to Transmission Constraints, into the Make-Whole Payment analysis. 07/25/2017 ERCOT No 6.7.2.2, 6.7.4, and 9.5.3 Approved
NPRR842 Study Area Load Information This Nodal Protocol Revision Request (NPRR) defines a Study Area as well as delivers the Load information, both forecast and actual, for any Study Areas developed by ERCOT. 07/26/2017 ERCOT No 2.1, 3.12.2 (new), 3.12.3 (new), 4.2.4.1, and 6.3.2 Approved
02/08/2019
NPRR843 Short-Term System Adequacy and AS Offer Disclosure Reports Additions This Nodal Protocol Revision Request (NPRR) addresses four separate reporting items in Section 3, Management Activities for the ERCOT System, of the Nodal Protocols. 1. This NPRR makes changes to the logic for the Short-Term System Adequacy Reports for more consistent treatment of Resource Statuses in reporting available capacity. Also, more specific language is added to provide clarity to end users of the reports. 2. This NPRR creates a new report which will show the portion of Ancillary Service Offers at or above 50 times the Fuel Index Price (FIP) when the Market Clearing Price for Capacity (MCPC) of that Ancillary Service exceeds 50 times FIP. This posting will occur seven days after the Operating Day, as required by P.U.C. SUBST. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region. 3. Additional elements are added to the “48-Hour Highest Price AS Offer Selected” report to also include the highest-priced Ancillary Service Offer selected in a Supplemental Ancillary Services Market (SASM). 4. A 60-day SASM disclosure report is created to provide transparency into Ancillary Service Offers and awards for any SASMs that may have been executed for a period within an Operating Day. 07/26/2017 ERCOT No 3.2.3 and 3.2.5 Approved
10/26/2018

All sections except for Section 3.2.5(11)

12/14/2018

Section 3.2.5(11)

NPRR844 Clarification to Outage Report This Nodal Protocol Revision Request (NPRR) corrects the current process of including capacity that is modeled but not yet commercially operational in the Outage Scheduler, which is then reflected in the Outage report. 07/26/2017 Luminant Generation No 3.2.3 Approved
08/09/2018
NPRR845 RMR Process and Agreement Revisions This Nodal Protocol Revision Request (NPRR) incorporates a number of revisions to improve the effectiveness of the Reliability Must-Run (RMR) process. 07/27/2017 ERCOT No 1.3.1.2, 3.14.1.2, 3.14.1.9, 3.14.1.11, 3.14.1.12, 3.14.1.12 (new), 3.14.1.13 (new), 3.14.1.14, 3.14.1.15 (ref), 3.14.1.16, 3.14.1.16 (new), 3.14.1.17, 3.14.1.18, 6.6.6.1, 6.6.6.6, 22B, and 22E Approved
04/05/2019
NPRR846 Allow Previously Committed ERS Resources to Participate in MRA Agreements and Other ERS Items This Nodal Protocol Revision Request (NPRR) addresses a number of changes pertaining to the Emergency Response Service (ERS): 1) Allows previously committed ERS Resources to participate in Must-Run Alternative (MRA) Agreements as ordered in Public Utility Commission of Texas (PUCT) Project No. 45927, Rulemaking Regarding Emergency Response Service. 2) Modifies the methodology for evaluating the performance during the first partial interval for ERS Loads on the alternate baseline. The current methodology produces incorrect results when the average Load for the first partial interval is above its maximum base Load, but in reality the Load responded according to the instruction. 3) Provides edits pertaining to the self-serve capacity associated with an ERS Generator. This change is necessary to define the acceptable parameters for self-serve capacity. 4) Adds Protocol language that will set the ERSTESTPF to significantly lower values and in some instances to zero for ERS Resources with three consecutive test failures in a 365 day period. In those instances where the ERSTESTPF are set to zero there will be no ERS payment for these Resources for the Standard Contract Term for which the third test failure occurred. 5) Provides additional administrative changes and clarifications to existing Protocol language pertaining to ERS. 08/25/2017 ERCOT No 2.1, 3.14.3.1, 8.1.3.1.1, 8.1.3.1.2, 8.1.3.1.3.1, 8.1.3.1.3.2, 8.1.3.1.3.3, 8.1.3.1.4, 8.1.3.2, 8.1.3.3.1, 8.1.3.3.2 Approved
02/01/2018
NPRR847 Exceptional Fuel Cost Included in the Mitigated Offer Cap This Nodal Protocol Revision Request (NPRR) provides a long-term solution that was requested by Market Participants during the stakeholder review and approval of NPRR664, Fuel Index Price for Resource Definition and Real-Time Make-Whole Payments for Exceptional Fuel Cost Events. In substitution for the NPRR664 language that is removed by this NPRR, ERCOT proposes the following: • Allowing Qualified Scheduling Entities (QSEs) to submit weighted average fuel prices in the Mitigated Offer Cap (MOC) for Real-Time mitigation, and • Consolidation of the calculation of the MOC into a single equation for clarification. 08/29/2017 ERCOT No 2.1, 2.2, 4.4.9.4.1, 6.6.3.7, 6.6.3.8, 9.5.3, 9.14.7 Approved
04/05/2019
NPRR849 Clarification of the Range of Voltage Set Points at a Generation Resource’s POI This Nodal Protocol Revision Request (NPRR) revises Section 3.15 to clarify the range of voltages at the Point of Interconnection (POI) and circumstances for which a Generation Resource’s reactive capability must be designed to meet. This NPRR does not modify any other provisions within Section 3.15 or its subsections; does not change the Generation Resource’s responsibility to adhere to Voltage Set Points; and does not modify the 2% tolerance band identified in paragraph (4) of Nodal Operating Guide Section 2.7.3.5, Resource Entity Responsibilities and Generation Resource Requirements. Rather, this NPRR simply aims to more clearly specify the reactive capability the Generation Resource must be designed to provide. 09/27/2017 ERCOT No 3.15 Approved
01/01/2020
NPRR850 Market Suspension and Restart This Nodal Protocol Revision Request (NPRR) lays out principles for ERCOT and Market Participants to follow in the event of a Market Suspension and Market Restart; and specifies the means of Settlement during a Market Suspension and for Market Restart. 09/27/2017 ERCOT No 2.1, 4.4.8, 5.2.2.2, 6.5.9.2, 16.11.4.6, 25 (new), 25.1 (new), 25.2 (new), 25.3 (new), 25.4 (new), 25.4.1 (new), 25.4.2 (new), 25.4.3 (new), 25.5 (new), 25.5.1 (new), 25.5.2 (new), 25.5.3 (new), 25.5.4 (new), 25.5.5 (new), 25.5.6 (new), 25.5.7 (new), 25.5.8 (new), 25.6 (new), and 25.6.1 (new) Approved
03/01/2019
NPRR851 Procedure for Managing Disconnections for Bidirectional Electrical Connections at Transmission Level Voltages This Nodal Protocol Revision Request (NPRR) was developed to fully implement the market design envisioned in NPRR 596, External Load Serving Entities. This NPRR establishes a clearly defined disconnection process within ERCOT market rules applicable to a transmission voltage connection to the ERCOT grid which utilizes one electrical connection for both generation and load services. 10/25/2017 Golden Spread Electric Coop, Inc. (GSEC) No 2.1, 3.1.5.1 Approved
07/01/2018
NPRR852 CRR Activity Calendar Approval Process This Nodal Protocol Revision Request (NPRR) clarifies the process ERCOT follows when updating the Congestion Revenue Right (CRR) activity calendar; removes unnecessary “advisory approval” language; and moves the approval of the calendar to the Wholesale Market Subcommittee (WMS) rather than the Technical Advisory Committee (TAC). This allows for a more efficient approval process for ERCOT while at the same time still allowing review by appropriate stakeholders. 11/08/2017 ERCOT No 7.5.1 Approved
03/01/2018
NPRR854 NOIE TDSP Submittal of Meters with Bidirectional Flow Caused by Generation Interconnected at Distribution Voltage This Nodal Protocol Revision Request (NPRR) removes the ERCOT Polled Settlement (EPS) Meter requirement for Non Opt-In Entity (NOIE) points of delivery that realize bi-directional flows as a result of generation that is interconnected to the Distribution System. NOIE Transmission and/or Distribution Service Providers (TDSPs) would assume the responsibility for supplying ERCOT with this meter data. 11/14/2017 South Texas Electric Coop., Inc. (STEC) No 10.2.2, 10.2.3 Approved
08/09/2018
NPRR855 Criteria for Including Resources in the CDR Peak Average Capacity Contribution Calculations This Nodal Protocol Revision Request (NPRR) clarifies the criteria for including Resources in the Seasonal Peak Average capacity estimation calculations used for the Report on Capacity, Demand and Reserves in the ERCOT Region. The revisions, which pertain to the handling of new and retiring Resources, apply to wind, solar, Direct Current Ties (DC Ties), hydro, and All-Inclusive Generation Resources within Private Use Networks. 11/27/2017 ERCOT No 3.2.6.2.2 Approved
03/01/2018
NPRR856 Treatment of OFFQS Status in Day-Ahead Make Whole and RUC Settlements This Nodal Protocol Revision Request (NPRR) provides language for accurate Reliability Unit Commitment (RUC) and Day-Ahead make-whole Settlement of Quick Start Generation Resources (QSGRs). 11/29/2017 ERCOT No 2.1, 4.6.2.3, 5.6.2, and 5.7.4.1.1 Approved
05/29/2020
NPRR857 Creation of Direct Current Tie Operator Market Participant Role This Nodal Protocol Revision Request (NPRR) creates the Market Participant role of “Direct Current Tie Operator (DCTO),” in order to clarify the obligations of Entities that operate Direct Current Ties (DC Ties) interconnected with the ERCOT System. This NPRR is proposed in accordance with the May 23, 2017 order of the Public Utility Commission of Texas (PUCT) in Project No. 46304, which requires ERCOT to address a number of issues as a condition for the energization of the DC Tie project proposed by Southern Cross Transmission LLC (“Southern Cross”). Directive 1 in the order requires ERCOT, among other things, to “determine the appropriate market participation category for [Southern Cross] and for any other entity associated with the Southern Cross DC Tie for which a new market-participant category may be appropriate (creating new ones if necessary . . . .” Because all DC Ties in the ERCOT System are currently owned by Transmission Service Providers (TSPs), the Protocols do not currently establish the obligations of Entities that operate DC Ties as distinct from the obligations of TSPs more generally. Southern Cross will not qualify as a TSP, as that term is presently defined, because it will not own Transmission Facilities subject to the jurisdiction of the PUCT. Moreover, many of the rights and responsibilities of TSPs are arguably inappropriate for operators of DCTOs who do not own networked Transmission Facilities—for example, full Outage Scheduler visibility, participation in generator interconnection studies, and participation on Transmission Operator hotline calls. This NPRR proposes the DCTO role in an effort to separate out the obligations specific to those Entities that operate DC Ties as distinct from the obligations specific to TSPs. Consequently, this NPRR would require any TSP that currently operates a DC Tie to add an additional registration as a DCTO. 11/29/2017 ERCOT No 1.2, 1.3.1.1, 2.1, 2.2, 3.1.1, 3.1.2, 3.1.3.1, 3.1.4.1, 3.1.4.2, 3.1.4.3, 3.1.4.4, 3.1.4.6, 3.1.5.1, 3.1.5.2, 3.1.5.3, 3.1.5.4, 3.1.5.6, 3.1.5.7, 3.1.5.8, 3.1.5.9, 3.1.5.10, 3.1.5.11, 3.1.5.12, 3.3.1, 3.3.2, 3.3.2.1, 3.5.1, 3.10, 3.10.1, 3.10.4, 3.10.5, 3.10.7.1, 3.10.7.1.1, 3.10.7.1.2, 3.10.7.1.3, 3.10.7.1.4, 3.10.7.2 3.10.7.4, 3.10.7.5, 3.10.7.5.1, 3.10.7.5.2, 3.10.9.2, 3.14.2, 3.20.2, 4.4.4, 6.5.1.2, 6.5.2, 6.5.3, 6.5.7.1.5, 6.5.7.1.11, 6.5.7.1.13, 6.5.7.8, 6.5.7.9, 6.5.9.3, 6.5.9.3.1, 6.5.9.3.2, 6.5.9.3.3, 6.5.9.4, 8, 8.3, 16.17, 22, 22 Approved
NPRR858 Provide Complete Current Operating Plan (COP) Data This Nodal Protocol Revision Request (NPRR) will publish all Current Operating Plan (COP) data after confidentiality has expired. 12/04/2017 Citigroup Energy Inc. No 1.3.3 Approved
02/08/2019
NPRR859 Administrative Changes for January 1, 2018 Nodal Protocols – SOC References and NCI Form This Nodal Protocol Revision Request (NPRR) administratively replaces current references to “Service Organization Control (SOC)” with “System and Organization Control (SOC)” to reflect the renaming implemented by the American Institute of Certified Public Accountants (AICPA); and updates the ERCOT email address for submitting a Notice of Change of Information within Section 23, Form E. 12/13/2017 ERCOT No 1.4.3.1, 8.2, and 23E Approved
01/01/2018
NPRR860 Day-Ahead Market (DAM) Clean-Up This Nodal Protocol Revision Request (NPRR) clarifies certain current practices related to the Day-Ahead Market (DAM) and cleans up Protocol language to better match the current implementation. This NPRR: • Clarifies the language concerning offering in Three-Part Supply Offers and Ancillary Service Offers for Off-Line Non-Spinning Reserve (Non-Spin) in the same hour for DAM consideration, to reflect that it is done during clearing and not during transaction validation; • Removes the reference to Congestion Revenue Rights (CRRs) being co-optimized in DAM (a legacy of the CRR Offer transaction which was removed with NPRR322, Real-Time PTP Option Modeling); • Clarifies self-commitment treatment of resources that only have an Ancillary Service Offer submitted for DAM; and • Clarifies the Ancillary Service Offer resubmission rules when there is Ancillary Service insufficiency. 12/21/2017 ERCOT No 4.1, 4.4.7.2, 4.5.1, 4.5.2 Approved
05/01/2018
NPRR861 Clarification of ERCOT’s Authority to Protect Its Jurisdictional Status At the PUCT’s December 14, 2017 meeting, the Commissioners instructed ERCOT to submit an NPRR to clarify that ERCOT will take action—including denying transactions across high voltage Direct Current Ties (DC Ties) between the ERCOT Region and Mexico or ordering disconnection of Transmission Facilities—to prevent a change to the jurisdictional status quo of ERCOT and Market Participants with respect to the Federal Energy Regulatory Commission (FERC) by such transactions. Jurisdiction of FERC FERC’s jurisdiction is derived from the Federal Power Act (FPA). Under the FPA, entities subject to FERC’s plenary jurisdiction are known as “public utilities.” The FPA gives FERC broad authority to regulate the activities of public utilities, including authority to ensure that public utility rates are just, reasonable, and non-discriminatory. ERCOT and its Market Participants are generally not subject to the plenary jurisdiction of FERC, and are therefore not considered public utilities under the FPA. FERC does not have plenary jurisdiction over ERCOT because electric energy generated in the ERCOT Region is not transmitted in “interstate commerce,” as defined by the FPA, except for certain interconnections ordered by FERC that do not give rise to broader FERC jurisdiction. Existing DC Ties with Mexico Three DC Ties presently connect the ERCOT Region to Mexico. The transmission of electric energy from the ERCOT Region over the existing DC Ties with Mexico does not alter ERCOT’s non-jurisdictional status based on the scope of FERC’s jurisdiction under the FPA and the current structure of the electric grids in the United States and Mexico. The principal Mexican national electric grid is not presently interconnected with any state in the United States other than Texas. Therefore, electric energy does not pass between Texas and any other state in the United States through Mexico on a regular basis. Proposed Interconnections At least two proposed interconnections involving the Mexican national grid and other states in the United States would allow the transfer of electric energy between Texas and other states in the United States. The first is the planned interconnection by Nogales Transmission, L.L.C. and Nogales Frontier Operations, L.L.C. of the UNS Electric, Inc. system near Nogales, Arizona with the Mexican national electric grid near Sonora, Mexico. The second is Mexico’s planned interconnection of the Baja California, Mexico system, which is already synchronously connected to the state of California, with the mainland Mexico national electric grid. The interconnections would asynchronously connect the ERCOT Region with Arizona and California, respectively, via the mainland Mexico national electric grid. Certain decisions of FERC suggest that either project could alter ERCOT’s non-jurisdictional status. Reason for NPRR ERCOT submits this NPRR in order to clarify that it can and will take all actions necessary to preserve the jurisdictional status quo and avoid causing any Entity that is not a public utility under the FPA to become such a public utility. ERCOT’s possible actions include but are not limited to ordering the disconnection of Transmission Facilities and denial or curtailment of an Electronic Tag (e-Tag). 12/21/2017 ERCOT Yes 1.2, 4.4.4 Approved
02/21/2018
NPRR862 Updates to Address Revisions under PUCT Project 46369 This Nodal Protocol Revision Request (NPRR) incorporates a number of revisions to address recent changes to Public Utility Commission of Texas (PUCT) Substantive Rule 25.502 in PUCT Project No. 46369, Rulemaking Relating to Reliability Must-Run Service. 12/22/2017 ERCOT No 2.1, 2.2, 3.14.1, 3.14.1.1, 3.14.1.2, 3.14.1.3, 3.14.1.5, 3.14.1.8, 3.14.1.11, 3.14.1.12, 3.14.1.13 (new), 3.14.1.15, 6.6.6.6, and 9.5.3 Approved
09/01/2018
NPRR863 Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve This Nodal Protocol Revision Request (NPRR) modifies Responsive Reserve (RRS) to be primarily a frequency response service and creates a new Ancillary Service: ERCOT Contingency Reserve Service (ECRS). 01/01/2018 STEC No 2.1, 2.2, 3.2.5, 3.2.6.2.1, 3.6.1, 3.8.3, 3.8.4, 3.9.1, 3.16, 3.17.2, 3.17.4 (new), 3.18, 4.2.1.1, 4.4.7.1, 4.4.7.1.1, 4.4.7.2, 4.4.7.2.1, 4.4.7.3, 4.5.2, 4.6.2.3.1, 4.6.4.1.3, 4.6.4.1.5 (new), 4.6.4.2.3, 4.6.4.2.5 (new), 6.1, 6.4.9.2, 6.5.1.2, 6.5.5.2, 6.5.7.2, 6.5.7.5, 6.5.7.6, 6.5.7.6.1, 6.5.7.6.2, 6.5.7.6.2.2, 6.5.7.6.2.3 (new), 6.5.7.6.2.3, 6.5.7.6.2.4 (new), 6.5.9.3.3, 6.5.9.4, 6.5.9.4.1, 6.5.9.4.2, 6.5.9.4.3, 6.6.5.1, 6.6.5.1.1, 6.7.1, 6.7.2, 6.7.2.1, 6.7.2.2, 6.7.3, 6.7.4, 6.7.5, 6.7.7, 8.1, 8.1.1.1, 8.1.1.2, 8.1.1.2.1.2, 8.1.1.2.1.6 (new), 8.1.1.3.2, 8.1.1.3.4 (new), 8.1.1.4.1, 8.1.1.4.2, 8.1.1.4.3, 8.1.1.4.4 (new), 8.5.1.1, 8.5.1.3, 8.5.2, 8.5.2.1, 9.2.3, and 9.5.3 Approved
02/07/2020

Section 6.5.7.5 (partial)

03/01/2020

Phase 1

NPRR864 RUC Modifications to Consider Market-Based Solutions This Nodal Protocol Revision Request (NPRR) modifies the Reliability Unit Commitment (RUC) engine to scale down commitment costs of fast-start Resources (<=1 hr starts) so that the RUC engine will recommend slow-start Resource commitments only if re-Dispatching of On-Line Resources and potential market-based self-commitments of fast-start Resources will not resolve the reliability issue. 01/02/2018 Shell Energy North America No 3.2.3, 5.1, 5.5.2, and 8.1.2 Approved
10/26/2018
NPRR865 Publish RTM Shift Factors for Hubs, Load Zones, and DC Ties This Nodal Protocol Revision Request (NPRR) requires ERCOT to publish Shift Factors for Hubs, Load Zones, and Direct Current Ties (DC) Ties for the Real-Time Market (RTM). 01/16/2018 DC Energy Texas No 6.5.7.1.13 Approved
04/05/2019
NPRR866 Mapping Registered Distributed Generation and Load Resources to Transmission Loads in the Network Operations Model This Nodal Protocol Revision Request (NPRR) accomplishes two objectives related to mapping registered Distributed Generation (DG) and Load Resources to transmission Loads in the Network Operations Model. Specifically, this NPRR expands paragraph (2) of Section 3.10.7.2 to codify the existing process for mapping a Load Resource or an Aggregate Load Resource (ALR) to its appropriate Load point in the Network Operations Model; and outlines in a new paragraph (3) of Section 3.10.7.2 the practice for mapping a registered DG facility to its appropriate Load point in the Network Operations Model. These changes would affect all existing and future DG facilities that have registered or will register with ERCOT pursuant to paragraph (5) of Section 16.5, Registration of a Resource Entity. DG registration is required for any DG facility with a capacity rating above the registration threshold, currently set at 1 MW, and which injects energy to the distribution grid. Registration with ERCOT is optional for smaller DG facilities. 02/14/2018 ERCOT No 3.10.7.2 Approved
04/05/2019
NPRR867 Revisions to CRR Auction Credit Lock Amount to Reduce Excess Collateral This Nodal Protocol Revision Request (NPRR) changes the amount of each Counter Party’s Available Credit Limit (ACL) locked for Congestion Revenue Rights (CRR) Auctions during the duration of the auction process so that it is capped at the pre-auction screening credit exposure amount. 02/27/2018 Credit Work Group No 16.11, 16.11.4.6.1 Approved
09/10/2021
NPRR868 As-Built Hub and Load Zone Calculation This NPRR modifies the Hub Bus and Load Zone definitions and price calculations to account for the current usage of power flow buses as opposed to Electrical Buses in the DAM and CRR Auction systems. In some cases there can be differences between power flow buses and Electrical Buses, and it is more suitable for power flow buses to be used. Real-Time currently uses Electrical Buses for the Hub and Load Zone calculations. Further, the rewritten formulas provide clarification for the scenario when buses are de-energized in contingency analysis. 03/01/2018 ERCOT Yes 2.1, 3.4, 3.5.2.1, 3.5.2.2, 3.5.2.3, 3.5.2.4, 3.5.2.6, 4.5.1, 4.6.1.2, and 7.5.1 Approved
04/11/2018
NPRR869 Clarification of Language Related to Generation Netting for ERCOT-Polled Settlement Meters This Nodal Protocol Revision Request (NPRR) requires certain generators over 1 MW (i.e., generators that are not: (i) registered with the Public Utility Commission of Texas (PUCT) as a power generation company; (ii) part of a Private Use Network with more than one connection to the ERCOT Transmission Grid; or (iii) registered to provide Ancillary Services) within a Private Use Network to provide modeling information to ERCOT as set forth in paragraph (1)(b) of Section 3.10.7.3; provides a netting exemption for a Qualifying Facility (QF) that is a small power production facility and lawfully provides energy to a Customer behind a single Point of Interconnection (POI); and deletes a reference to the now-expired system benefit fund charges. 03/22/2018 Reliant Energy Retail Services No 3.10.7.3 and 10.3.2.3 Approved
11/01/2018
NPRR870 Eliminate Requirement for Forward Adjustment Factors Report in the MIS Certified Area This Nodal Protocol Revision Request (NPRR) deletes the gray-boxed requirement for ERCOT to post a Forward Adjustment Factors Summary Report on the Market Information System (MIS) Certified Area. The information in this report is already provided on each Counter-Party’s Estimated Aggregate Liability (EAL) Summary Report. 03/26/2018 ERCOT No 16.11.4.7 Approved
07/01/2018
NPRR871 Customer or Resource Entity Funded Transmission Projects Review Process This Nodal Protocol Revision Request (NPRR) will address the review process for transmission projects that are funded by Customers or Resource Entities. Similar language was included in the initial filing of NPRR837, Regional Planning Group (RPG) Process Reform, but after discussion with stakeholders was removed from that NPRR to allow for a standalone review of the language. 04/17/2018 ERCOT No 3.11.4.11 (new) Approved
03/01/2019
NPRR873 Posting of the ERCOT Wide Intra-Hour Wind Power and Load Forecast on the MIS Public This Nodal Protocol Revision Request (NPRR) is intended to outline expectations for ERCOT’s posting of information pertaining to intra-hour wind power and Load forecast on the Market Information System (MIS) Public Area. This NPRR also proposes two new definitions and acronyms for Intra-Hour Wind Power Forecast (IHWPF) and Intra-Hour Load Forecast (IHLF). 04/25/2018 ERCOT No 2.1, 3.12, 4.2.2 Approved
02/07/2020
NPRR874 Change to Report for Net Allocation to Load Settlement Stability This Nodal Protocol Revision Request (NPRR) changes the Net Allocation to Load Settlement stability report by breaking out the Load- Allocated CRR Monthly Revenue Zonal Amount (LACMRZAMT) from the other Load-allocated charges and providing dollars per MWh by Congestion Management Zone (CMZ). 05/15/2018 Tenaska Power Service Co. No 8.2 Approved
09/01/2018
NPRR875 Clarification for the Implementation of NPRR864, RUC Modifications to Consider Market-Based Solutions This Nodal Protocol Revision Request (NPRR) adds clarifying language to sync up the Protocols with the implementation of NPRR864, RUC Modifications to Consider Market-Based Solutions. Section 5.5.2, Reliability Unit Commitment (RUC) Process, is revised to be much more specific as to how to manage fast-starting Resources in RUC under conditions in which they are disqualified per the compliance metric in paragraph (4) of Section 8.1.2, Current Operating Plan (COP) Performance Requirements. 05/16/2018 ERCOT No 5.5.2 and 8.1.2 Approved
09/01/2018
NPRR876 Administrative Changes for June 1, 2018 Nodal Protocols This Administrative Nodal Protocol Revision Request (NPRR) removes the acronym for the Commercial Operations Subcommittee (COPS), consistent with changes being made in COPMGRR047, LPGRR064, and RMGRR151; removes a superfluous word from a grey-box for NPRR843, Short-Term System Adequacy and AS Offer Disclosure Reports Additions; and inserts missing parentheses within paragraph (6) of Section 4.4.10. 05/16/2018 ERCOT No 2.2, 3.2.5, and 4.4.10 Approved
06/01/2018
NPRR877 Use of Actual Interval Data for IDR ESI IDs for Initial Settlement This Nodal Protocol Revision Request (NPRR) provides a process to allow for the use of actual metered interval data for initial settlement of an Operating Day for Electric Service Identifiers (ESI IDs) that currently require BUSIDRRQ Load Profiles. Currently, meter data is sent monthly on the 867_03 for ESI IDs with BUSIDRRQ Load Profiles, so most of the data used for initial settlement for these ESI IDs is estimated using proxy day data. The ESI IDs are resettled with actual data during final Settlement on the 55th day following the Operating Day. The result is inaccurate initial Settlement. 05/17/2018 Oncor No 18.6.1 Approved
05/01/2019

Section 18.6.1 (Phase 1)

01/01/2020

Section 18.6.1 (Phase 2)

NPRR878 ERS Obligation Report for TDSPs This Nodal Protocol Revision Request (NPRR) prescribes ERCOT’s posting of an ERS Obligation Report for Transmission and/or Distribution Service Provider (TDSPs) to the Market Information System (MIS) Certified Area. 05/29/2018 CenterPoint Energy No 3.14.3.4 Approved
02/08/2019
NPRR879 SCED Base Point, Base Point Deviation, and Performance Evaluation Changes for IRRs that Carry Ancillary Services This Nodal Protocol Revision Request (NPRR) proposes that Intermittent Renewable Resources (IRRs) carrying Ancillary Service Resource Responsibilities receive a Security-Constrained Economic Dispatch (SCED) Base Point calculated using the five-minute intra-hour forecast of the Resource. Generation Resource Energy Deployment Performance (GREDP) metrics are added to score performance during these intervals. Base Point Deviation Charges are adjusted to treat IRRs providing Ancillary Services the same as conventional generators. These changes cannot be done manually and will be active once a system change is implemented. This NPRR contains clean-up changes to correct the unit of measure for some billing determinants, and an as-built correction to the Settlement equation in paragraph (4) of Section 6.6.5.2. These clean-up changes do not introduce any system impact or Settlement changes. This NPRR also contains administrative edits to paragraphs (7) - (9) of Section 8.1.1.4.1, to align the paragraph numbering with current Protocol formatting style. These edits are authored as “ERCOT Market Rules” in this NPRR. 05/30/2018 ERCOT No 6.5.7.2, 6.6.5.1.1.1, 6.6.5.1.1.2, 6.6.5.1.1.3, 6.6.5.1.1.4, 6.6.5.2, and 8.1.1.4.1 Approved
NPRR880 Publish Real-Time Market Shift Factors for Private Use Network Settlement Points This Nodal Protocol Revision Request (NPRR) requires ERCOT to publish Shift Factors for Private Use Network Settlement Points for the Real-Time Market (RTM). 06/19/2018 DC Energy No 6.5.7.1.13 Approved
04/05/2019
NPRR881 Annual Validation Process Revisions This Nodal Protocol Revision Request (NPRR) creates market efficiencies by reducing the Residential (RES) validations requirements from being an annual to an every third year market event. This NPRR greatly reduces the volumes of 814_20, ESI ID Maintenance Request, Texas Standard Electronic Transactions (TX SETs) for RES Annual Validation that would have been communicated through ERCOT and Market Participants’ systems. The results of these changes help to reduce cost associated with numerous resources required to manage and also provide system’s support of these RES Annual Validation transactions when processed yearly. 06/20/2018 CenterPoint Energy / TXU Energy No 18.4.3.1 Approved
01/01/2019
NPRR882 Related to PGRR067, Procedures for Wind and Solar Equipment Change This Nodal Protocol Revision Request (NPRR) updates the definition of Initial Synchronization and Interconnecting Entity to include certain types of facility equipment changes and clarifies Generation Interconnection or Change Request (GINR)-related fee language. 06/26/2018 ERCOT No 2.1 and ERCOT Fee Schedule Approved
01/01/2019
NPRR883 Adjustment to Settlement Equation for Ancillary Services Assignment This Nodal Protocol Revision Request (NPRR) removes the Real-Time Reliability Deployment Price Adder from the Real-Time Settlement Point Price (RTSPP) in order to avoid double payment under the Ancillary Services Assignment scenario. 06/28/2018 ERCOT No 6.7.2 Approved
11/01/2018
NPRR884 Adjustments to Pricing and Settlement for Reliability Unit Commitments (RUCs) of On-Line Combined Cycle Generation Resources This Nodal Protocol Revision Request (NPRR) introduces into the Protocols various changes needed for ERCOT systems to effectively manage cases where ERCOT issues a Reliability Unit Commitment (RUC) instruction to a Combined Cycle Generation Resource that is already Qualified Scheduling Entity (QSE)-committed for an hour, with the instruction being that the Resource operate in a configuration with greater capacity for that same hour. 07/02/2018 ERCOT No 2.1, 2.2, 5.5.2, 5.7.1.1, 5.7.1.2, 5.7.1.3, 5.7.2, 5.7.4.1, 5.7.4.1.1, 6.5.7.3, 6.5.7.3.1, and 6.7.5 Approved
05/29/2020
NPRR885 Must-Run Alternative (MRA) Details and Revisions Resulting from PUCT Project No. 46369, Rulemaking Relating to Reliability Must-Run Service This NPRR incorporates a number of revisions to address changes by the Public Utility Commission of Texas (PUCT) to P.U.C. SUBST. R. 25.502, Pricing Safeguards in Markets Operated by the Electric Reliability Council of Texas, in PUCT Project No. 46369, Rulemaking Relating to Reliability Must-Run Service (RMR). More specifically, this NPRR proposes new Protocol language to address numerous issues related to the solicitation and operation of Must-Run Alternative (MRA) Service. 07/03/2018 ERCOT No 1.3.1.2, 2.1, 3.14, 3.14.4 (new), 3.14.4.1 (new), 3.14.4.2 (new), 3.14.4.3 (new), 3.14.4.4 (new), 3.14.4.5 (new), 3.14.4.6 (new), 3.14.4.6.1 (new), 3.14.4.6.2 (new), 3.14.4.6.3 (new), 3.14.4.6.4 (new), 3.14.4.6.5 (new), 3.14.4.6.5.1 (new), 3.14.4.7 (new), 3.14.4.8 (new), 3.14.4.9 (new), 6.5.5.2, 6.6.6, 6.6.6.7 (new), 6.6.6.8 (new), 6.6.6.9 (new), 6.6.6.10 (new), 6.6.6.11 (new), 6.6.6.12 (new), 6.7.5, 9.5.3, and 22M (new) Approved
NPRR886 Agreements Between ERCOT and Other Control Area Operators This Nodal Protocol Revision Request (NPRR) requires that ERCOT, to the extent possible, provide Notice and allow time for comments prior to executing any new or amended agreement with another Control Area Operator. 07/13/2018 Citigroup No 3.23 (new) Approved
03/01/2019
NPRR887 Monthly Posting of Default Uplift Exposure Information This Nodal Protocol Revision Request (NPRR) creates a new Market Information System (MIS) Certified Area posting which provides insight to the potential risk associated with default uplift charges to each Counter-Party. 07/19/2018 Citigroup No 9.19.3 and 16.11.4.7 Approved
05/29/2020
NPRR888 4-Coincident Peak Adjustment Methodology This Nodal Protocol Revision Request (NPRR) clarifies the 4-Coincident Peak (4-CP) adjustment methodology that was implemented in conjunction with NPRR830, Revision of 4-Coincident Peak Methodology. This methodology was endorsed by the Wholesale Market Subcommittee (WMS) at its May 2, 2018 meeting. 07/24/2018 ERCOT No 9.17.1 Approved
11/01/2018
NPRR889 RTF-1 Replace Non-Modeled Generator with Settlement Only Generator This NPRR accomplishes several objectives of the Resource Definition Task Force (RTF) undertaken at the direction of the Protocol Revision Subcommittee (PRS). Specifically, this NPRR replaces the current defined term, Non-Modeled Generator, with a new defined term, Settlement Only Generator (SOG), throughout the Protocols, and introduces new terms to clarify the distinction between transmission-connected Resources and distribution-connected Resources; reorganizes various terms for Resources that are misleading because they are actually attributes of Resources (rather than types of Resources) that describe the status, services provided, and/or technology utilized by Resources; and clarifies the implicit requirement that generation larger than 10 MW connected to the Distribution System will be required to register as a Generation Resource. 08/01/2018 ERCOT No 1.3.1.1, 2.1, 2.2, 3.10.7.2, 3.10.7.3, 6.3.2, 6.5.5.2, and 6.6.3.2 Approved
11/01/2019
NPRR890 Correction to Calculation of Real-Time LMPs at Logical Resource Node for On-Line Combined Cycle Generation Resources This Nodal Protocol Revision Request (NPRR) aligns Protocol price calculation formulas with ERCOT systems calculation of the Real-Time Locational Marginal Price (LMP) at a logical Resource Node for an On-Line Combined Cycle Generation Resource (“CCGR”). This alignment includes distinguishing between scenarios in which the CCGR is On-Line and when it is Off-Line. 08/15/2018 ERCOT Yes 6.6.1.1 Approved
10/10/2018
NPRR891 Removal of NOIE Capacity Reporting Threshold for the Unregistered Distributed Generation Report This Nodal Protocol Revision Request (NPRR) removes the 50 kW threshold for Non-Opt-In Entities (NOIEs) to report unregistered Distributed Generation (DG) to ERCOT for the purpose of creating the Unregistered Distributed Generation Report. 08/15/2018 ERCOT No 3.2.5.1 Approved
05/01/2019
NPRR892 Non-Spin Reserve Energy Floor Clarification This Nodal Protocol Revision Request (NPRR) places a floor on energy on units carrying Non-Spinning Reserves (Non-Spin) and Responsive Reserves (RRS) and/or Regulation Up Service (Reg-Up) concurrently to ensure the Non-Spin capacity is priced above the $75/MWh floor. 08/22/2018 Morgan Stanley No 6.4.4.1 Approved
01/01/2019
NPRR893 Clarification of Fuel Index Price and Incorporation of System-Wide Offer Cap and Scarcity Pricing Mechanism Methodology into Protocols This Nodal Protocol Revision Request (NPRR) clarifies the effective Fuel Index Price (FIP) used in market activities executed prior to the publication of the index for the Operating Day. FIP is used by multiple applications, and the current FIP definition does not address the timing around receiving the data and when it can feasibly be used by market applications. Any source for this index that ERCOT selects publicly publishes a methodology regarding effective dates for weekends and holidays and ERCOT will follow that methodology. Therefore, ERCOT removes specific language related to weekends and holidays and defers to the methodology indicated by the source. Additionally, this NPRR incorporates the OBD “System-Wide Offer Cap and Scarcity Pricing Mechanism Methodology” into Protocols. 08/27/2018 ERCOT No 2.1, 4.4.11, and 4.4.11.1 Approved
01/01/2019
NPRR894 Correction of Unaccounted For Energy (UFE) Formula This Nodal Protocol Revision Request (NPRR) corrects the formula for allocation of Unaccounted For Energy (UFE) to UFE categories by removing obsolete components of the formula referring to distribution voltage level Non-Opt-In Entities (NOIEs). 08/28/2018 ERCOT No 11.4.6.3 Approved
01/01/2019
NPRR895 Inclusion of Photo-Voltaic Generation Resources (PVGRs) in Real-Time Ancillary Service Imbalance Payment or Charge This Nodal Protocol Revision Request (NPRR) removes the current exclusion that applies to all Intermittent Renewable Resources (IRRs) that are not Wind-powered Generation Resources (WGRs) in the calculation of the Real-Time Ancillary Service Imbalance Payment or Charge. As such, PVGRs are currently excluded in both the Operating Reserve Demand Curve (ORDC) methodology and the Settlement of Real-Time Ancillary Service Imbalance Payment of Charge. 08/29/2018 ERCOT No 6.7.5 Approved
10/18/2019
NPRR896 Reliability Must-Run and Must-Run Alternative Evaluation Process This Nodal Protocol Revision Request (NPRR) outlines the process ERCOT will use to evaluate the cost-effectiveness of procuring Reliability Must-Run (RMR) Service or one or more Must-Run Alternatives (MRAs). 08/29/2018 ERCOT No 3.14.1, 3.14.1.2, and 3.14.1.5 Approved
07/01/2019
NPRR897 Adjustments to Black Start Service (BSS) Procurement Timeline and Testing This Nodal Protocol Revision Request (NPRR) adjusts the timeline for the Black Start Service (BSS) procurement and testing process, adds a weather limitation disclosure form, and aligns the Load-Carrying Test procedure with actual practice. 08/29/2018 ERCOT No 3.14.2, 8.1.1.2.1.5, 22 Attachment M (new) Approved
12/12/2018
NPRR898 Modify Language on Returning Original EPS Metering Site Certification Documents to the TDSP This Nodal Protocol Revision Request (NPRR) allows the electronic return of ERCOT-Polled Settlement (EPS) Metering site certification documents to the Transmission and/or Distribution Service Provider (TDSP). Current Nodal Protocol language requires ERCOT to return original EPS metering site certification documents to the TDSP. ERCOT currently returns the original documents through the postal service. The concept of returning these documents through an electronic means was introduced for discussion at a Meter Working Group (MWG) meeting. The MWG reviewed the language in this NPRR and reached a consensus that ERCOT could return EPS metering site certification documents to the TDSP in an electronic format. 09/19/2018 ERCOT No 10.4.3 (reference), 10.4.3.1 Approved
01/01/2019
NPRR899 Digital Certificate and User Security Administrator Clarifications and Opt Out Procedure This Nodal Protocol Revision Request (NPRR) modifies Section 16, Registration and Qualification of Market Participants, and Section 23, Forms B, E, and J; and adds Form L. This NPRR makes the following primary modifications to Section 16: (1) Creates a new process by which qualified Market Participants can request to opt-out of receiving Digital Certificates and having to appoint a User Security Administrator (USA). If ERCOT determines that a Market Participant is qualified to opt-out, that Market Participant will not have the ability to request/utilize Digital Certificates or access to the Market Information System (MIS); (2) Clarifies ambiguous requirements Digital Certificate holders must meet to receive and continue to hold Digital Certificates; and (3) Clarifies that a USA may be responsible for managing access to certain ERCOT computer systems that do not require Digital Certificates, such as the online Resource Integration and Ongoing Operations (RIOO) system, which is currently expected to be implemented later in 2018. This NPRR makes the following modifications to Section 23: (1) Revises Form B and Form J to give new applicants the ability to opt-out of receiving Digital Certificates as long as they meet the necessary qualifications; (2) Revises Form E to allow a qualified Market Participant that has previously opted-out of receiving Digital Certificates to opt back in, and therefore become eligible to receive Digital Certificates; and (3) Adds Form L. Additional revisions streamline and clarify the Digital Certificate and USA process. 09/25/2018 ERCOT No 2.1, 16.12, 16.12.1, 16.12.2, 16.12.3, 16.12.4, 23 Form B, 23 Form E, 23 Form J, 23 Form L Approved
09/01/2019
NPRR900 Clean-up Items Applicable to the State of Texas REC Trading Program This Nodal Protocol Revision Request (NPRR) addresses language clean up and inconsistencies in the current Nodal Protocol language that are out of alignment with current processes, Public Utility Commission of Texas (PUCT) Substantive Rules, and system design. The following is an outline of changes in the various sections: Section 2 – Modifies the definition of Designated Representative to accurately reflect the use of this term. This term is only used in reference to a Renewable Energy Credit (REC) Account; Section 14.3.1 – Adds clarifying language and language modifications on the type of Agreement required to be REC Account Holder and that the Agreement is binding on the REC Account Holder; Section 14.3.2 – Adds a descriptive sentence for the table and update the defined field length for the creation of a REC and Compliance Premium to be consistent with system design; Section 14.3.2 and 14.10.1 – Removes dates that are expressive of a start time for initial implementation and no longer need to be defined in Protocols; Section 14.4 – Clarifies that language for ERCOT to close a REC Account that holds no RECs or Compliance Premiums for a period of one year is not mandatory; Section 14.5.1 – Replaces Resource Facility with REC generator for consistency of the section. Resource is specific to a Generation Resource and the section applies to All-Inclusive Generation Resource which includes Non-Modeled generators; Section 14.7 – Updates when transfer requests are effective based on current system design; Section 14.9 – Removes erroneous stop date for the allocation of the RPS mandate to retail entities. Public Utility Regulatory Act (PURA) and PUCT Substantive Rule language have no references to a stop date for this activity; and Section 14.12 – Updates naming of REC aggregator to be consistent with PUCT Substantive Rule language. 09/26/2018 ERCOT No 2.1, 14.2, 14.3.1, 14.3.2, 14.4, 14.5.1, 14.5.2, 14.7, 14.9, 14.9.1, 14.9.2, 14.9.3.1, 14.9.4, 14.9.5, 14.10.1, 14.10.2, 14.11, 14.12, 14.13 Approved
05/01/2019
NPRR901 Switchable Generation Resource Status Code This Nodal Protocol Revision Request (NPRR) proposes a new Resource Status code “EMRSWGR” for Switchable Generation Resources (SWGRs) operating in a non-ERCOT Control Area in order to provide additional transparency for operations and reporting. 09/26/2018 ERCOT Yes 2.2 and 3.9.1 Approved
05/31/2019
NPRR902 ERCOT Critical Energy Infrastructure Information This Nodal Protocol Revision Request (NPRR) clarifies parties’ responsibilities regarding ERCOT Critical Energy Infrastructure Information (ECEII). This NPRR defines ECEII, adds lists of items that are considered ECEII, specifies the restrictions imposed upon parties that receive or create ECEII, and provides a framework for the submission of ECEII to ERCOT. A process has been created for contesting ERCOT determinations regarding confidentiality status. This NPRR also deletes language in Section 1.3.1.2 that is duplicative of paragraph (1)(b) of Planning Guide Section 5.5.4, Notification to ERCOT Concerning Certain Project Developments. The Federal Energy Regulatory Commission (FERC), in a series of orders issued in 2003, adopted a definition of Critical Energy Infrastructure Information (CEII) and established regulations for submitting CEII to and obtaining CEII from FERC. Subsequent FERC orders further refined these regulations. While the FERC regulations do not require ERCOT to adopt similar rules regarding the handling of CEII, the Protocols currently include a definition for CEII, closely based on the FERC definition, although there are only minimal requirements regarding CEII in the current Protocols. In practice, ERCOT restricts access to CEII, and strongly believes that limiting access and requiring secure handling of CEII is reasonable and appropriate in connection with its role as the recipient and producer of vast amounts of information, some of which is sensitive for commercial or security reasons. The rules proposed in this NPRR are based on a review of FERC’s CEII regulations and similar rules adopted by other Independent System Operators (ISOs) and Regional Transmission Organizations (RTOs). The Market Information System (MIS) Secure Area was intended to be used for ERCOT to provide routine Market Participant access to information that is sensitive for security reasons – i.e., ECEII. Paragraph (1) of Section 12.1 states in part that “[t]he MIS Secure Area provides restricted access to critical energy infrastructure information.” While much of the information currently required by the Protocols and Other Binding Documents to be posted on the MIS Secure Area does constitute ECEII, ERCOT Staff has identified several instances in which information required to be posted on the MIS Secure Area is not ECEII and thus would be more appropriately located on the MIS Public Area. As a follow-up to this NPRR, ERCOT Staff intends to conduct a more comprehensive review of items required to be posted on the MIS Secure Area, and expects to submit one or more additional Revision Requests to relocate those items that do not constitute ECEII. To provide Market Participants time to adjust their processes to account for the changes enacted through this NPRR, ERCOT proposes that the NPRR become effective on the first day of the seventh month following ERCOT Board approval (e.g., July 1, 2019 effective date if approved by the ERCOT Board at its December 2018 meeting). 09/28/2018 ERCOT No 1.3, 1.3.1, 1.3.1.1, 1.3.1.2, 1.3.2, 1.3.3, 1.3.2 (new), 1.3.2.1 (new), 1.3.2.2 (new), 1.3.2.3 (new), 1.3.3 (new), 1.3.4, 1.3.5, 1.3.6, 1.3.8, 1.3.9 (delete), 2.1, 2.2, 3.10, 3.10.2, 3.10.3,3.10.4,12.1,12.3,17.3.2,17.4 Approved
06/01/2021

All sections except for Sections 12.1 and 16.12

07/30/2021

All remaining sections

NPRR903 Day-Ahead Market Timing Deviations This Nodal Protocol Revision Request (NPRR) clarifies the deviations that may occur due to Day-Ahead Market (DAM) delays, and adds language requiring ERCOT to issue a Market Notice for any act or omission that it takes to ensure that the DAM process completes by 1900. If the 1000 DAM submission deadline or the 1330 DAM publishing deadline is delayed, ERCOT will enter an Advisory as soon as possible. However, if additional actions and/or omissions are taken to ensure that DAM publishes for that Operating Day, ERCOT will issue a Market Notice no later than 1700 Central Prevailing Time (CPT) on the next Business Day. ERCOT intends to take any reasonable action necessary to avoid aborting DAM. Further, this NPRR memorializes 1900 as the latest point in time that DAM can publish. In the event that DAM must be aborted, this particular time was chosen to accommodate the time necessary to execute a Supplemental Ancillary Services Market (SASM) and/or Reliability Unit Commitment (RUC) prior to the start of the Operating Day. 10/02/2018 ERCOT No 4.1.2 and 9.14.10 (new) Approved
09/01/2020
NPRR904 Revisions to Real-Time On-Line Reliability Deployment Price Adder for ERCOT-Directed Actions Related to DC Ties and to Correct Design Flaws This Nodal Protocol Revision Request (NPRR) revises the categories of ERCOT-directed actions that trigger the Real-Time On-Line Reliability Deployment Price Adder (RTRDPA) pricing run to include Direct Current Tie (DC Tie) related actions in order for prices to reflect current system conditions and corrects identified flaws with current RTRDPA design. 10/19/2018 Rainbow Energy Marketing Corporation No 6.3.2 and 6.5.7.3.1 Approved
NPRR905 CRR Balancing Account Resettlement This Nodal Protocol Revision Request (NPRR) provides resettlement to reflect proper distribution of the Congestion Revenue Right (CRR) Balancing Account (CRRBA). 10/22/2018 Market Settlements Working Group (MSWG) No 7.5.7, 7.6, 9.10, 9.12 Approved
08/01/2021
NPRR906 Clarifying the Decision Making Entity Process This Nodal Protocol Revision Request (NPRR) streamlines the Protocol language across all sections and removes any ambiguity that may exist as to how ERCOT systems handle the Decision Making Entity during mitigation. 10/29/2018 ERCOT No 2.1, 3.2.5, 3.6.2, 3.19.1, 3.19.2, 3.19.3, 3.19.4, 23C Approved
05/01/2019
NPRR907 Revise Definition of M1a to Reflect Actual Calendar Days The M1a component of the Total Potential Exposure (TPE) calculation sets a time period meant to reflect the number of days between an Operating Day and the initiation of a Mass Transition of the Market Participant’s Electric Service Identifiers (ESI IDs) (Mass Transition days are reflected in the M1b component). This Nodal Protocol Revision Request (NPRR) replaces the existing fixed value of M1a with a value that can vary based on non-Bank Business Days and ERCOT holidays following the specific Operating Day. 10/29/2018 ERCOT No 16.11.4.3 Approved
05/29/2020
NPRR908 Revisions to Mass Transition Processes This Nodal Protocol Revision Request (NPRR) aligns Retail Market Guide references in Protocols as revised in RMGRR159. In addition, the NPRR updates Mass Transition notification requirements for Emergency Qualified Scheduling Entities (QSEs) to align with revisions in the RMGRR. 10/31/2018 ERCOT No 15.1.3.1, 16.2.6.1, 16.2.6.3 Approved
05/01/2019
NPRR909 Address Unavailability Gap for ERS and Other Minor Clarifications This Nodal Protocol Revision Request (NPRR): • Addresses periods of unavailability due to unplanned unavailability for Loads and Generators; • Changes the name reference of “Default Baseline Methodology” to “Demand Response Baseline Methodologies”; • Deletes the reference to post the Qualified Scheduling Entity (QSE) portfolio–level report since it is already listed under required reports in paragraph (3) of Section 3.14.3.4; • Addresses what happens if a generator fails an event as the current language only addresses failures for a test; • Deletes a sentence that is duplicated in paragraph (2) of Section 8.1.3.1.3.2 about meter data for generator availability which is in the event performance section; • Adds language to qualify as a co-located generator as all Time-Periods must match between the Load and generator; • Adds clarifying language about when the recovery period starts; • Specifies the use of the Maximum Megawatt (MW) from all offered Time-Periods for weather sensitive Resources; • Adds clarifying language to specify that weather sensitive Resource testing does not count towards the cumulative deployment limit of eight hours; and • Removes language regarding when to return to normal operations since the language is specific to paragraph (3) of Section 3.14.3.3. 11/20/2018 ERCOT No 3.14.3.1, 3.14.3.3, 8.1.3.1.1, 8.1.3.1.2, 8.1.3.1.3.1, 8.1.3.1.3.2, 8.1.3.1.4, 8.1.3.4 Approved
06/01/2019
NPRR910 Clarify Treatment of RUC Resource that has a Day-Ahead Market Three-Part Supply Award This Nodal Protocol Revision Request (NPRR) codifies eligibility, pricing, and Settlement for a Resource that has been awarded a Three-Part Supply Offer in the Day-Ahead Market (DAM) but decides not to operate the Resource in the Real-Time Market (RTM) and subsequently receives a Reliability Unit Commitment (RUC) instruction to operate that Resource. 11/28/2018 ERCOT No 5.5.2, 5.6.2, and 6.7.5 Approved
05/31/2019
NPRR911 Improved Calculation of Real-Time LMPs at Logical Resource Nodes for On-Line Combined Cycle Generation Resources This Nodal Protocol Revision Request (NPRR) follows NPRR890, Correction to Calculation of Real-Time LMPs at Logical Resource Node for On-Line Combined Cycle Generation Resources. The intent of NPRR890 was to align Protocol language with ERCOT’s systems. The current Protocol language calculates the Locational Marginal Price (LMP) for a Combined Cycle Generation Resource (“CCGR”) using a weighted average of the Shift Factors for each Generation Resource in the On-Line CCGR using the Real-Time telemetered outputs of the Generation Resources to calculate the weight factor. This language reverts the applicable Protocol sections back to previous language for determining Real-Time LMPs of the logical Resource Nodes for On-Line CCGRs. Reverting the Protocol language back results in those CCGR LMPs being based on a weighted average of LMPs at the Resource Node for each of the Generation Resources in the On-Line CCGRs, using the Real-Time telemetered outputs of the Generation Resources to calculate the weight factor. This NPRR also retains the language from NPRR890 that clarifies the formula for Off-Line CCGRs. 11/28/2018 ERCOT No 6.6.1.1 Approved
12/13/2019
NPRR912 Settlement of Switchable Generation Resources (SWGRs) Instructed to Switch to ERCOT This Nodal Protocol Revision Request (NPRR) addresses the Settlement of Switchable Generation Resources (SWGRs) that receive a Reliability Unit Commitment (RUC) instruction to switch from a non-ERCOT Control Area to the ERCOT Control Area. The NPRR provides a Make-Whole Payment for a SWGR when the SWGR’s Real-Time revenues in ERCOT are not sufficient to cover certain specified costs the SWGR may have incurred in complying with such a RUC instruction. As proposed in this NPRR, eligible costs include costs of starting up and operating, energy and Ancillary Service imbalance charges assessed by the non-ERCOT Control Area Operator, and additional fuel costs directly attributable to the switch. SWGRs may recover incremental startup and operating costs above those described below based on proxy costs created by ERCOT if the SWGR does not have approved verifiable costs. The SWGR Make-Whole Payment will include costs to shutdown in the non-ERCOT grid, start in ERCOT, shutdown in ERCOT, and re-start in the non-ERCOT grid, when the SWGR switches back to the non-ERCOT control area within 24 hours of being released from the RUC. To qualify for the Make-Whole Payment, the SWGR must be operating in the non-ERCOT Control Area at the time ERCOT issues the RUC instruction. Qualified Scheduling Entities (QSEs) representing SWGRs must file a Settlement and billing dispute to trigger the Make-Whole Payment calculation. Finally, ERCOT has included language that would codify ERCOT’s intention to issue a switch directive to an SWGR only in the limited circumstances in which both the SWGR is needed to address an actual or anticipated Emergency Condition and the non-ERCOT Control Area Operator has released the SWGR to ERCOT. 11/28/2018 ERCOT No 2.2, 5.5.2, 5.7.4.1.1, 5.7.7 (new), 6.6.12 (new), 6.6.12.1 (new), 6.6.12.2 (new), 6.6.12.3 (new), 6.7.5, and 9.14.9 (new) Approved
05/31/2019
NPRR914 Addition of Controllable Load Resources to 60-Day Reports This Nodal Protocol Revision Request (NPRR) adds data points that are unique to a Controllable Load Resource that has a Resource Status of ONRGL or ONCLR to the existing 60-Day Security-Constrained Economic Dispatch (SCED) disclosure report for Load Resources. 12/19/2018 ERCOT No 3.2.5 Approved
10/18/2019
NPRR915 Define Limited Duration Resource and Clarify Telemetered Resource Status Requirements This Nodal Protocol Revision Request (NPRR) defines Limited Duration Resources (LDRs) and clarifies how the Qualified Scheduling Entity (QSE) representing an LDR shall indicate to ERCOT its unwillingness to be deployed in Real-Time to reserve capacity for expected values above its Energy Offer Curve. 12/21/2018 Luminant Generation LLC Yes 2.1, 2.2, 3.8, and 3.8.5 (new) Approved
03/01/2019
NPRR916 Mitigated Offer Floor Revisions This Nodal Protocol Revision Request (NPRR) sets the Mitigated Offer Floor for the “Combined Cycle” and “Gas/Oil Steam and Combustion Turbine” Resource Categories to $0/MWh, rather than a Fuel Index Price (FIP)-based calculation. This proposed language obviates grey-boxed language from NPRR664, Fuel Index Price for Resource Definition and Real-Time Make-Whole Payments for Exceptional Fuel Cost Events. As a result, the grey-boxed language from NPRR664 is deleted in Section 4.4.9.4.2. 12/27/2018 ERCOT No 4.4.9.4.2 Approved
04/10/2019

Phase I: Language that is not grey-boxed

05/31/2019

All remaining sections

NPRR917 Nodal Pricing for Settlement Only Distribution Generators (SODGs) and Settlement Only Transmission Generators (SOTGs) This Nodal Protocol Revision Request (NPRR) implements nodal energy pricing, instead of the current Load Zone energy pricing, for Settlement Only Distribution Generators (SODGs) and Settlement Only Transmission Generators (SOTGs). For an SODG, the energy price used as the basis for the 15-minute Real-Time price calculation is the time-weighted price at the Electrical Bus associated with the mapped Load of the SODG in the Network Operations Model. For an SOTG, the energy price used as the basis for the 15-minute Real-Time price calculation is the time-weighted price at the Electrical Bus as determined by ERCOT in review of the meter location of the SOTG in the Network Operations Model. This NPRR also allows existing SODGs and SOTGs to apply to ERCOT to continue to receive Load Zone energy pricing until such time as they proactively opt in for nodal pricing, or January 1, 2030, whichever is earlier. 01/02/2019 ERCOT No 6.3.2, 6.6.3.2, 6.6.3.9 (new), 6.6.10, 9.5.3, 9.19.1, 10.3.2.3, 16.11.4.3.2, and 23N (new) Approved
09/01/2019

Section 23N

NPRR918 Validation for PTP Obligations with Links to an Option This Nodal Protocol Revision Request (NPRR) contains clarifications and updated hourly validation rules regarding the Non-Opt-In Entity (NOIE) Load forecast related to the submission of Point-to-Point (PTP) Obligations with Links to an Option: 1) NOIE peak Load forecast is a required field for PTP Obligations with Links to an Option; and 2) NOIE peak and hourly Load forecasts are referring to the Operating Day in question. 01/11/2019 ERCOT No 4.4.6.1 and 4.4.6.2 Approved
NPRR920 Change to Ramp Rate Calculation in Resource Limit Calculator This Nodal Protocol Revision Request (NPRR) modifies the Resource ramp rate logic in Section 6.5.7.2, Resource Limit Calculator, to dynamically adjust the amount of ramp rate reserved for Regulation Service in Real-Time based on the percentage of Regulation Service being deployed in the opposite direction in Real-Time. 01/25/2019 ERCOT No 6.5.7.2 Approved
12/16/2019
NPRR921 RTF-2 Elimination of the Terms All-Inclusive Generation Resource and All-Inclusive Resource This Nodal Protocol Revision Request (NPRR) proposes clarifications in furtherance of the Resource Definition Task Force’s (RTF) objectives to “identify[] problematic terms” in the Protocols and “improv[e] the current structure and terms where practical.” Specifically, this NPRR replaces all instances of the terms All-Inclusive Generation Resource and All-Inclusive Resource with appropriate terms from Section 2.1. The terms All-Inclusive Generation Resource and All-Inclusive Resource cause confusion because many generators that fall within the scope of the definitions of these terms are neither Generation Resources nor Resources. In most cases, ERCOT has simply replaced the term All-Inclusive Generation Resource with “Generation Resource and Settlement Only Generator (SOG),” and replaced All-Inclusive Resource with “Generation Resource, Settlement Only Generator (SOG), and Load Resource.” However, in many of the cases where All-Inclusive Generation Resource is currently used, ERCOT has determined that the requirement should apply only to certain categories of registered generators and has revised the language appropriately. For example, ERCOT has proposed that Primary Frequency Response should be provided only by Generation Resources and any other transmission-connected generators, and that it need not be provided by distribution-connected generators. In these cases, the elimination of All-Inclusive Generation Resource enables ERCOT to more narrowly tailor the requirement’s applicability to a reasonable scope. In several other instances, ERCOT has supplemented an existing reference to Generation Resource with a reference to SOG, or the appropriate subtype of SOG, to further clarify the requirement’s applicability. 01/28/2019 ERCOT No 1.2, 1.6.5, 2.1, 3.2.6.2.2, 3.7, 3.10.1, 3.10.6, 3.10.7.2, 3.10.7.6, 8.1.1.4.2, 8.5.1.1, 8.5.1.2, 8.5.2, 8.5.2.1, 9.17.1, 10.1, 10.2.2, 10.2.3, 10.3.2.4, 10.9, 14.5.1, 16.5, 16.5.1.2, 22L, 23I, and ERCOT Fee Schedule Approved
11/01/2019
NPRR922 Modifications to DC Tie Import Forecast Method This Nodal Protocol Revision Request (NPRR) aligns the Direct Current Tie (DC Tie) import forecast with forecasts of other Resources in the Report on Capacity, Demand and Reserves in the ERCOT Region (“CDR”) that are deployed during Energy Emergency Alert (EEA) events, such as Emergency Response Service (ERS). This NPRR also addresses a reporting gap in the CDR by specifying an approach for forecasting expected capacity imports for planned DC Tie projects. 01/30/2019 ERCOT No 3.2.6.2.2 Approved
05/01/2019
NPRR923 Revision to Weather Responsiveness Determination Process This Nodal Protocol Revision Request (NPRR) updates the weather sensitivity process by allowing Transmission and/or Distribution Service Providers (TDSPs) an additional 30 days to complete investigation and execution of the request to revise the Load Profile for a BUSIDRRQ Electric Service Identifier (ESI ID). 02/08/2019 Profiling Working Group (PWG) No 11.4.3.1 Approved
10/18/2019
NPRR924 Addition of Form to Section 23 - IMRE Application for Registration This Nodal Protocol Revision Request (NPRR) moves the Independent Market Information System Registered Entity (IMRE) Application for Registration form into Section 23 of the Nodal Protocols, which houses similar forms. 02/14/2019 ERCOT No 23 Form M (new) Approved
07/01/2019
NPRR925 Increasing Minimum Quantity for PTP Obligation Bids This Nodal Protocol Revision Request (NPRR) increases the minimum quantity that can be submitted for Point-to-Point (PTP) Obligation bids to one MW, from one-tenth of one MW, matching the minimum quantity for Energy Only Offers and Energy Bids. 02/27/2019 ERCOT Yes 4.4.6.1 Approved
NPRR926 Removal of 90-Day Period Between SSR Study Approval and Synchronization This Nodal Protocol Revision Request (NPRR) removes the 90-day period between Subsynchronous Resonance (SSR) study approval and Initial Synchronization specified in paragraph (4) of Section 16.5, Registration of a Resource Entity, clarifies that the SSR Mitigation Plan is part of the SSR study, and adds an ERCOT review process for the SSR study (with any required mitigation plan) including 30 days for the study to be approved by ERCOT. This NPRR also adds a 45 day time period from SSR study approval for ERCOT to implement any required SSR monitoring. 02/27/2019 ERCOT No 3.22.1.2, 16.5 Approved
07/01/2019
NPRR927 Administrative Changes for April 1, 2019 Nodal Protocols – Update ERCOT Email Address This Administrative Nodal Protocol Revision Request (NPRR) standardizes the email address across Section 22 and Section 23 for submittal of attachments and forms to ERCOT. 03/16/2019 ERCOT No 22E, 22H, 22L, 23A, 23B, 23C, 23G, 23I, and 23J Approved
04/01/2019
NPRR928 Cybersecurity Incident Notification This Nodal Protocol Revision Request (NPRR) establishes Market Participant notification responsibilities with respect to Cybersecurity Incidents. Market Participant notification of Cybersecurity Incidents will provide ERCOT with awareness of cybersecurity impacts and vulnerabilities to networks and systems that interface with ERCOT, which will help ERCOT mitigate and prevent injury to the ERCOT System and ERCOT market operations. Notification of Cybersecurity Incidents will also give ERCOT the ability to analyze acts and behaviors to identify and deflect future cybersecurity threats and existing vulnerabilities. Specifically, this NPRR: (1) defines Cybersecurity Incident and Cybersecurity Contact; (2) classifies Cybersecurity Incident information as Protected Information; (3) establishes a Market Participant notice requirement; (4) creates a form for notifying ERCOT of a Cybersecurity Incident; (5) provides that ERCOT can, for purpose of ensuring the safety or security of the ERCOT System or ERCOT market operations, notify state or federal law enforcement of a Cybersecurity Incident; and (6) allows ERCOT to notify Market Participants of general information concerning a Cybersecurity Incident in order to mitigate further impact. Under this NPRR, a Market Participant must notify ERCOT of a malicious or suspicious act that compromises or disrupts a computer network or system, which could jeopardize the reliability or integrity of the ERCOT System or ERCOT market operations. These notification requirements extend to malicious or suspicious acts that compromise or disrupt the computer network or system of a Market Participant’s agent that transacts with ERCOT. This NPRR includes a requirement that each Market Participant designate and maintain a Cybersecurity Contact with ERCOT by utilizing the Notice of Change of Information form in Protocol Section 23. This NPRR also provides Market Participants with a process for submitting information concerning a Cybersecurity Incident, including a standard form for reporting a Cybersecurity Incident – Notice of Cybersecurity Incident. Should a notifying Market Participant wish for ERCOT to communicate with an individual other than the Cybersecurity Contact for a particular Cybersecurity Incident, it may designate a temporary Cybersecurity Contact in the Notice of Cybersecurity Incident form. Cybersecurity Incident information identifiable to a specific Market Participant is considered Protected Information under this NPRR. Although such information shall be considered Protected Information under the Protocols, if ERCOT determines that there is a need to inform a state or federal law enforcement agency for the purpose of ensuring the safety and/or security of the ERCOT System or ERCOT market operations, this NPRR allows ERCOT to disclose information concerning the Cybersecurity Incident, as well as the identity of the notifying Market Participant, as long as ERCOT obtains adequate assurance from the receiving law enforcement agency that it will maintain the confidentiality of the Cybersecurity Incident. In the event that ERCOT determines that disclosure to a law enforcement agency is appropriate to ensure the safety and/or security of the ERCOT System or market operations, this NPRR requires ERCOT to provide the notifying Market Participant with notice of the disclosure, as well as the identity of the law enforcement agency to which the information was disclosed. Finally, this NPRR provides that in the event ERCOT determines a Cybersecurity Incident could impact networks or systems of ERCOT or other Market Participants, ERCOT may, in its discretion, issue a Market Notice with information regarding the Cybersecurity Incident; any such Market Notice will not identify the notifying Market Participant or Critical Energy Infrastructure Information (CEII). Notably, this provision extends to Cybersecurity Incidents that ERCOT identifies on an ERCOT network or system. ERCOT proposes to maintain discretion concerning the issuance of a Market Notice concerning a Cybersecurity Incident to avoid revealing sensitive information that could compromise ongoing cybersecurity measures or investigations. 03/20/2019 ERCOT No 1.3.1.1, 1.3.4, 1.3.5, 1.3.6, 2.1, 16.19, 23A, 23B, 23E, 23G, 23I, 23J, and 23N Approved
03/13/2020

Sections 2.1 (partial), 16.18 (partial), 23A, 23B, 23E, 23G, 23I, 23J, 23M, and 23O

04/03/2020

All remaining sections

NPRR929 PTP Obligations with Links to an Option DAM Award Eligibility This Nodal Protocol Revision Request (NPRR) proposes new criteria for determining whether a Point-to-Point (PTP) Obligation with Links to an Option bid is eligible to be awarded based on the Current Operating Plan (COP) Resource Status of the Resource at the Resource Node where the bid sources. Such a bid will not be eligible for award if it sources at a Resource with a COP Resource Status of OUT, or a COP Resource Status of OFF and the Resource is not offered into the Day-Ahead Market (DAM). 03/26/2019 LCRA, Reliant Energy Retail Services, STEC, Direct Energy, Austin Energy, and CPS Energy No 4.4.6.3 (new) Approved
04/03/2020
NPRR930 Process, Pricing, and Cost Recovery for Delayed Resource Outages This Nodal Protocol Revision Request (NPRR) requires ERCOT to use an Outage Adjustment Evaluation (OAE) process to delay accepted or approved Outages after issuing an Advance Action Notice (AAN) to describe the need and providing time for Qualified Scheduling Entities (QSEs) to adjust their Outage plans. A Resource that receives an Outage Schedule Adjustment (OSA) as a result of an OAE will be made whole to its actual costs incurred due to delaying or canceling and rescheduling the Outage and committing the Resource, as appropriate. In addition, it sets an offer floor for the Resource at $4,500/MWh. Together, these changes will encourage Resources to self-commit to avoid the opportunity cost of offering at a very high price, while making them whole if they do follow ERCOT’s instructions. A QSE with a Resource that is unable to return to service due to reliability reasons may update its Outage to a Forced Outage so that it may continue its Outage plans to support the Resource’s longevity and availability during critical Load periods. 03/28/2019 Citigroup Yes 2.1, 2.2, 3.1.4.6, 3.1.6.9, 5.1, 5.5.2, 5.6.5 (new), 5.6.5.1 (new), 5.6.5.2 (new), 5.6.5.3 (new), 5.7.2, 5.7.4, 5.8, 6.5.7.3, 6.5.9.3.1.1 (new), and 9.5.6 Approved
07/01/2020

Phase 1

NPRR931 As Built Hub Average Calculation This Nodal Protocol Revision Request (NPRR) modifies the ERCOT Hub Average 345 kV Hub (ERCOT 345) price calculation to reflect the existing use of aggregated Shift Factors, as opposed to direct simple averaging of the component Hubs’ prices. 04/16/2019 ERCOT No 3.5.2.6 Approved
09/01/2019
NPRR932 Addition of Load to Existing Load Zone This Nodal Protocol Revision Request (NPRR) clarifies that the addition of Load that is new to the ERCOT System to an existing Load Zone (including Load from a non-ERCOT Control Area) does not require ERCOT Board approval and can take effect immediately. 04/16/2019 ERCOT No 3.4.2, 3.4.3 Approved
09/01/2019
NPRR933 Reporting of Demand Response by Retail Electric Providers and Non-Opt-In Entities This Nodal Protocol Revision Request (NPRR) adds specific timing requirements for Retail Electric Providers (REPs) and Non-Opt-In Entities (NOIEs) to provide information to ERCOT regarding categories of Demand response and price response programs offered to their Customers, the level of participation in those programs, and information on deployment events associated with those programs. 04/16/2019 ERCOT Yes 3.10.7.2.1, 3.10.7.2.2 (new) Approved
08/01/2020
NPRR935 Post All Wind and Solar Forecasts This Nodal Protocol Revision Request (NPRR) requires ERCOT to post Hourly Short-Term Wind Power Forecast (STWPF), Short-Term PhotoVoltaic Power Forecast (STPPF), Wind-powered Generation Resource Production Potential (WGRPP), and PhotoVoltaic Generation Resource Production Potential (PVGRPP) values from each forecast model and to include in its posting an indication of which model is being used for each of the above forecasts. 04/16/2019 ERCOT No 2.1, 2.2, 4.2.2, and 4.2.3 Approved
08/07/2020

All sections except for Section 4.2.3(1) and 4.2.3(6)

07/01/2022

Section 4.2.3(1) and 4.2.3(6)

NPRR936 CRR Account Holder Limits This Nodal Protocol Revision Request changes the Congestion Revenue Right (CRR) Auction transaction limit to the Counter-Party level, rather than that of the CRR Account Holder. 04/24/2019 Engie No 7.5.2 Approved
NPRR937 Distribution Voltage Level Block Load Transfer (BLT) Deployment This Nodal Protocol Revision Request (NPRR) allows for the Load shed associated with distribution voltage level Block Load Transfers (BLTs) to count toward Energy Emergency Alert (EEA) Level 3 Load shed obligations. 04/26/2019 Golden Spread Electric Cooperative No 6.5.9.4.2, 6.5.9.5, 6.5.9.5.2 Approved
01/01/2020
NPRR939 Modification to Load Resources Providing RRS to Maintain Minimum PRC on Generators During Scarcity Conditions This Nodal Protocol Revision Request (NPRR) changes the current practice of ERCOT dividing Load Resources other than Controllable Load Resources providing Responsive Reserve (RRS) into two groups. Instead, ERCOT would create groups of 500 MW each. 04/30/2019 ERCOT No 6.5.9.4.2 Approved
05/27/2022
NPRR940 Removal of Language Related to NPRR664, Fuel Index Price for Resource Definition and Real-Time Make-Whole Payments for Exceptional Fuel Cost Events This Nodal Protocol Revision Request (NPRR) removes NPRR664 grey-boxed language from the Protocols. 05/02/2019 ERCOT No 2.1, 2.2, 3.14.1, 3.14.1.21, 4.4.9.2.1, 4.4.9.2.3, 4.4.9.3.1, 4.4.9.3.3, 4.4.9.4.1, 5.6.1, 5.7.1.1, 5.7.3, 6.6.6.2, 7.9.1.3, 9.14.7 Approved
11/01/2019
NPRR941 Create a Lower Rio Grande Valley Hub This Nodal Protocol Revision Request (NPRR) creates a trading Hub “Lower Rio Grande Valley 138/345 kV Hub (LRGV 138/345)” in the ERCOT lower Rio Grande Valley. The NPRR also excludes this new Hub from the existing ERCOT-wide Hub average and Bus average calculations in Sections 3.5.2.6 and 3.5.2.7. 05/07/2019 DC Energy No 3.5.2.6 (new), 3.5.2.6, and 3.5.2.7 Approved
NPRR942 Clarification of Revised Transaction Limit Posting This Nodal Protocol Revision Request (NPRR) clarifies the timing of the posting of the final allocated transaction limit for the Congestion Revenue Right (CRR) Auction (often called colloquially the “second round limit”) by removing a sentence in paragraph (2)(a) of Section 7.5.2, leaving paragraph (2)(e) of Section 7.5.2 as the remaining requirement of this posting. 05/09/2019 ERCOT No 7.5.2, CRR Auction Offers and Bids Approved
09/01/2019
NPRR943 Holiday Schedule Update This Nodal Protocol Revision Request (NPRR) adds Martin Luther King, Jr. Day to the list of ERCOT-observed holidays under the definition of Business Day. 05/14/2019 ERCOT No 2.1, Definitions Approved
01/19/2020
NPRR944 As Built Day-Ahead Market Energy Bid Curve Submission Validation This Nodal Protocol Revision Request (NPRR) updates existing Day-Ahead Market (DAM) energy bid curve criteria language to align with current implementation. Energy bids currently read “monotonically decreasing energy bid curve for both price (in $/MWh) and quantity (in MW)”, but current validation enforces “monotonically decreasing” for price (in $/MWh) and “monotonically increasing” for quantity (in MW). 05/20/2019 ERCOT No 4.4.9.6.1, DAM Energy Bid Criteria Approved
09/01/2019
NPRR945 Net Metering Requirements This Nodal Protocol Revision Request (NPRR) clarifies when an All-Inclusive Generation Resource may be netted against Load for Settlement purposes. This NPRR confirms that an All-Inclusive Generation Resource and Load may be netted behind a single Point of Interconnection (POI) as long as the Load is otherwise being lawfully served without use of the ERCOT Transmission Grid. The Public Utility Regulatory Act (PURA) and existing Public Utility Commission of Texas (PUCT) rules and precedent legally determine when and how Load can be served without using the ERCOT Transmission Grid. This NPRR does not change or expand that existing law, but invokes it to limit generation netting behind a common POI. This NPRR also sunsets provisions that previously allowed netting for sites with multiple interconnections, which were meant to address historical interconnection arrangements that are no longer common practice. Sites that are being netted today under these provisions are grandfathered in the NPRR. Finally, this NPRR addresses outdated references to “Generation” or “generation” that should refer to All-Inclusive Generation Resources under today’s Resource definitions. 05/20/2019 TIEC No 10.3.2.3 Approved
01/01/2021

All sections except for Section 10.3.2.3(7)

NPRR948 Instrument Transformer Testing Schedule and Removal of Reference to Fiber-Optic Current Transformers This Nodal Protocol Revision Request (NPRR) incorporates changes in the American National Standards Institute (ANSI) Standards, increases the test schedule for Coupling Capacity Voltage Transformers (CCVTs) tested in the last quarter of a year, and removes references to fiber-optic current transformers. 05/29/2019 ERCOT No 10.6.1.2 Approved
11/01/2019
NPRR949 January 1, 2023 Changes to EPS Meter Communications Path This Nodal Protocol Revision Request (NPRR) removes the use of standard voice telephone circuits as a defined option for ERCOT to retrieve ERCOT-Polled Settlement (EPS) Meter data effective January 1, 2023. 05/29/2019 ERCOT No 10.12.1 Approved
NPRR950 Switchable Generation Resources Providing Black Start Service This Nodal Protocol Revision Request (NPRR) will prohibit any Switchable Generation Resource (SWGR) contracted to provide Black Start Service (BSS) from generating in any Control Area other than ERCOT. 05/30/2019 ERCOT Yes 3.14.2, 16.5.4, and 22D Approved
11/01/2019
NPRR951 Active and Inactive SCED Constraint Reporting This Nodal Protocol Revision Request (NPRR) expands the Network Security Analysis Active Constraints report and the Network Security Analysis Inactive Constraints report to include Megavolt Ampere (MVA) flows and limits. 06/06/2019 DC Energy No 6.5.7.1.11 Approved
08/07/2020
NPRR952 Use of Katy Hub for the Fuel Index Price This Nodal Protocol Revision Request (NPRR) proposes fully replacing Houston Ship Channel with Katy Hub as the reference for the Fuel Index Price (FIP) for natural gas in ERCOT’s systems. This change is consistent with recent amendments to P.U.C. SUBST. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region, adopted by the Public Utility Commission of Texas (PUCT) in Project No. 48721, which give ERCOT flexibility to select an appropriate natural gas price index for the purposes of calculating the Peaker Net Margin (PNM) threshold and the Low System-Wide Offer CAP (LCAP). 06/12/2019 ERCOT No 2.1 Approved
12/12/2019
NPRR953 Addition of Relay Loadability Rating Definition This Nodal Protocol Revision Request (NPRR) adds the Relay Loadability Rating definition in order to address the North American Electric Reliability Corporation (NERC) definition changes for Operational Planning Analysis and Real Time Assessments which adds a requirement to include protection system limitations. These changes also support ERCOT housing and monitoring the Relay Loadability Rating in Energy Management System (EMS) applications. 06/27/2019 ERCOT No 2.1, 3.10.3, 3.10.7.1.1, and 3.10.7.1.4 Approved
05/01/2020
NPRR954 Allow Opt Out of 867 EPS Data This Nodal Protocol Revision Request (NPRR) allows a Transmission Service Provider (TSP), Distribution Service Provider (DSP), or Load Serving Entity (LSE) to opt out of receipt of Texas Standard Electronic Transaction (Texas SET) 867 data for Electric Service Identifiers (ESI IDs) with ERCOT Polled Settlement (EPS) Meters. 06/28/2019 ERCOT No 11.1.10 Approved
11/01/2019
NPRR955 Define Limited Impact Remedial Action Scheme (RAS) This Nodal Protocol Revision Request defines a Limited Impact RAS to accommodate North American Reliability Corporation (NERC) Reliability Standard PRC-012-2, Remedial Action Schemes. 06/28/2019 ERCOT No 2.1 Approved
10/01/2020
NPRR957 RTF-4 Definition of Energy Storage Resource and Related Registration and Telemetry Requirements This Nodal Protocol Revision Request (NPRR):establishes the terms “Energy Storage System” (ESS) and “Energy Storage Resource” (ESR), with ESS serving as an “umbrella term” for storage assets in general, and ESR corresponding to ESSs that are eligible to participate in Security-Constrained Economic Dispatch (SCED) and/or provide Ancillary Services; adds new Section 3.8.6 to clarify that the Resource Entity and Qualified Scheduling Entity (QSE) representing an ESR are responsible for following all requirements associated with Generation Resources and Controllable Load Resources. Under this process, an ESR must be registered with ERCOT as both a Generation Resource and a Controllable Load Resource; adds new paragraph (12) to Section 6.5.5.2 to specify telemetry requirements unique to ESRs; and adds new paragraph (6) to Section 16.5 to provide greater transparency of ERCOT’s current practice of requiring a Resource Entity to register an ESR as both a Generation Resource and a Controllable Load Resource. ERCOT expects that this dual-registration requirement may be superseded by future requirements and system changes that facilitate participation by an ESR as a single asset. 07/16/2019 Boston Energy Trading and Marketing No 2.1, 2.2, 3.8, 3.8.6 (new), 6.5.5.2, and 16.5 Approved
01/01/2020
NPRR958 Modifications to Wind and Solar Capacity Calculations in the CDR This Nodal Protocol Revision Request (NPRR) modifies the calculation of the wind and solar capacities used in the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR). It also better aligns the solar capacity calculation with the wind capacity calculation. 07/19/2019 ERCOT No 3.2.6.2.2 Approved
11/01/2019
NPRR959 Creation of a Panhandle Region for Calculation of Seasonal Peak Average Capacity Contributions for Wind This Nodal Protocol Revision Request (NPRR) splits the existing non-coastal wind region in the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) into a Panhandle wind region and an other wind region. 07/19/2019 ERCOT No 3.2.6.2.2 Approved
11/01/2019
NPRR960 Phased Approach and Clarifications for NPRR863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve This Nodal Protocol Revision Request (NPRR) revises grey-boxed language related to NPRR863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve, in order to implement the Board-approved phasing approach for NPRR863, along with corrections to a few Resource Status references within NPRR863 grey-boxed language. 07/22/2019 ERCOT No 3.16, 3.18, 4.4.7.1, 4.4.7.1.1, 6.5.7.2, 6.5.9.4.1, and 8.1.1.3.2 Approved
03/01/2020

Sections 3.16, 4.4.7.1, 4.4.7.1.1, and 6.5.9.4.1

NPRR961 Related to NOGRR194, Relocate Black Start Training Attendance Requirements to Nodal Operating Guides This Nodal Protocol Revision Request (NPRR) aligns the Protocols with changes proposed in NOGRR194. 07/24/2019 ERCOT No 3.14.2 Approved
11/01/2019
NPRR962 Publish Approved DC Tie Schedules This Nodal Protocol Revision Request (NPRR) requires ERCOT to publish every hour the approved Direct Current Tie (DC Tie) Schedule for the next seven days. 07/29/2019 ERCOT No 3.2.3 Approved
NPRR963 Base Point Deviation Settlement and Deployment Performance Metrics for Energy Storage Resources (Combo Model) This Nodal Protocol Revision Request (NPRR) allows for the two components of an Energy Storage Resource (ESR) to be considered in aggregate for the purposes of Generation Resource Energy Deployment Performance (GREDP) scoring, Controllable Load Resource Energy Deployment Performance (CLREDP) scoring, and Settlement of Base Point Deviation Charges. 07/30/2019 Tenaska Power Services No 2.1, 2.2, 6.6.5, 6.6.5.1, 6.6.5.1.1, 6.6.5.1.1.1, 6.6.5.1.1.2, 6.6.5.1.1.3, 6.6.5.1.1.4, 6.6.5.2, 6.6.5.3, 6.6.5.4, 6.6.5.5, 6.6.5.5.1, 8.1.1.1, 8.1.1.2.1.1, 8.1.1.4.1, 8.5.1.2, 8.5.2, 8.5.2.1, 9.5.3 Approved
NPRR964 Improvement of RMR Process and Removal of Synchronous Condenser Unit and Agreement This Nodal Protocol Revision Request (NPRR) improves the Reliability Must-Run process and removes the term Synchronous Condenser Unit and its related Agreement. 07/31/2019 ERCOT No 2.1, 3.14.1.2, 3.14.1.2.1, 3.14.1.9, 22B, 22E, and 22F (deleted) Approved
02/12/2020

All sections except Section 3.14.1.2.1

NPRR965 GREDP Shutdown Exemption This Nodal Protocol Revision Request (NPRR) excludes from the Generation Resource Energy Deployment Performance (GREDP) calculation the five-minute intervals in which a Quick Start Generation Resource (QSGR) is engaging in the decommitment process under Section 3.8.3.1, Quick Start Generation Resource Decommitment Decision Process, or telemetering SHUTDOWN status. 08/05/2019 Luminant Generation Company LLC No 8.1.1.4.1 Approved
NPRR967 Remove the 10 MW Limit from the Definition of Limited Duration Resource (LDR) This Nodal Protocol Revision Request (NPRR) modifies the definition of Limited Duration Resource (LDR) to remove the 10 MW limit. 08/27/2019 Advanced Power Alliance No 2.1 and 4.4.9.3 Approved
03/01/2020
NPRR968 Revise EEA Level 3 Triggers from 1375 MW to 1430 MW to Align with New Most Severe Single Contingency Value This Nodal Protocol Revision Request (NPRR) updates Protocol language for compliance with North American Electric Reliability Corporation (NERC) Reliability Standards BAL-002-3, Disturbance Control Standard – Contingency Reserve for Recovery from a Balancing Contingency Event, and EOP-011-1, Emergency Operations. The proposed language changes the Physical Responsive Capability (PRC) trigger for Energy Emergency Alert (EEA) Level 3 to match a new Most Severe Single Contingency (MSSC) of 1,430 MW, which ERCOT intends to implement on January 1, 2020. ERCOT is updating the MSSC value from the former value of 1,375 MW to more accurately reflect the expected impact of the loss of either of the South Texas Project nuclear generating units, based on additional data ERCOT has obtained. Attachment 1 of EOP-011-1 requires ERCOT to declare an EEA Level 3 if it is unable to maintain PRC above its minimum contingency reserve requirement, which is defined in Requirement R2 of BAL-002-3 to be the MSSC. ERCOT will modify its Operating Procedures and processes following the approval of this NPRR. 08/28/2019 ERCOT No 6.5.9.4.2 Approved
01/01/2020
NPRR969 Clean-up of Protocol 19.8, Retail Market Testing This Nodal Protocol Revision Request (NPRR) clarifies language regarding ERCOT’s role in qualifying Market Participants. 08/28/2019 ERCOT No 19.8 Approved
01/01/2020
NPRR970 Reliability Unit Commitment (RUC) Fuel Dispute Process Clarification This Nodal Protocol Revision Request (NPRR) and the related VCMRR026 update and clarify language between the Protocols and the Verifiable Cost Manual related to the fuel dispute process. Specifically, this NPRR: clarifies that the Fuel Index Price (FIP) and Fuel Oil Price (FOP) are adjusted by the proxy fuel adder, X, as defined in the Verifiable Cost Manual; clarifies that the maximum amount that may be recovered for fuel oil disputes is the difference between the RUC Guarantee based on the actual price paid and the adjusted FOP; and removes the requirement that a Market Participant obtain ERCOT Board approval when it seeks to support a fuel dispute with documentation not expressly listed in the Protocols. 09/17/2019 ERCOT No 9.14.7 Approved
03/01/2020
NPRR971 Replacing the Real-Time Average Incremental Energy Cost This Nodal Protocol Revision Request (NPRR) replaces the Average Incremental Energy Cost (AIEC) used in Real-Time Settlements with the Energy Offer Curve cost caps. 09/24/2019 ERCOT No 4.4.9.3.3, 4.6.5, 5.7.1.3, 5.7.1.4, 6.6.3.7, and 6.6.7.1 Approved
04/02/2021
NPRR972 Enhancing Existing CRR Transaction Limit Process This Nodal Protocol Revision Request (NPRR) provides ERCOT with authority to not open a transaction adjustment period for a CRR Auction, even if the total number of transactions submitted exceeds the transaction limit announced prior to the auction, as long as the total number of transactions submitted does not exceed the number of transactions that can be processed by ERCOT’s systems. 09/25/2019 ERCOT No 7.5.2 Approved
12/11/2019
NPRR973 Add Definitions for Generator Step-Up and Main Power Transformer This Nodal Protocol Revision Request (NPRR) adds definitions for Generator Step-Up (GSU) and Main Power Transformer (MPT) to the Nodal Protocols and clarifies their uses. 09/25/2019 ERCOT No 2.1, 2.2, 3.10.7.1.4, and 3.10.7.2 Approved
NPRR974 Capacity Insufficiency Operating Condition Notice (OCN) Transparency This Nodal Protocol Revision Request (NPRR) requires ERCOT to include the amount of the projected capacity shortage and the amount of capacity that is Off-Line but available to start as part of an Operating Condition Notice (OCN) for capacity insufficiency. 09/30/2019 Texas Competitive Power Advocates (TCPA) No 3.2.3 and 6.5.9.3.1 Approved
NPRR975 Load Forecast Model Transparency This Nodal Protocol Revision Request (NPRR): 1) Clarifies that Load forecast models will be used to select the Seven-Day Load Forecast based on expected weather; and 2) Requires ERCOT Operations to explain why they selected a certain model to improve transparency for Market Participants. 09/30/2019 Texas Competitive Power Advocates (TCPA) No 3.12.1 Approved
NPRR977 Create MIS Posting for RUC Cancellations This Nodal Protocol Revision Request (NPRR) will post to the Market Information System (MIS) a report to communicate Reliability Unit Commitments (RUCs) that have been cancelled by the ERCOT Operator. 10/29/2019 ERCOT No 5.3 Approved
08/07/2020
NPRR978 Alignment with Amendments to PUCT Substantive Rule 25.505 This Nodal Protocol Revision Request (NPRR) incorporates a number of revisions to address recent changes made to Public Utility Commission of Texas (PUCT) Substantive Rule 25.505 in PUCT Project No. 48721, Rulemaking Proceeding To Amend 16 TAC 25.505, Relating to Resource Adequacy in the Electric Reliability Council of Texas Power Region and to Repeal 16 TAC 25.508, Relating to the High System-Wide Offer Cap in the Electric Reliability Council of Texas Power Region. Specifically, this NPRR: • Deletes paragraph (1) of Section 3.2.3 which contained general statements about ERCOT’s system adequacy reporting requirements. Similar language was deleted from Substantive Rule 25.505(d). • Deletes paragraph (2) of Section 3.2.3 which required ERCOT to post a Medium-Term System Adequacy Report. The requirement for this report was removed from Substantive Rule 25.505(d). The following components of the existing Medium-Term System Adequacy Report will be retained pursuant to requirements in other Protocol sections: o Ancillary Service Requirement Methodology, which is also required to be posted on the Market Information System (MIS) Public Area pursuant to paragraph (3) of Protocol Section 1.1, Summary of the ERCOT Protocols Document, due to its inclusion on the Other Binding Documents List. o Long-Term Daily Load Forecast, which is also required to be posted on the MIS Secure Area pursuant to paragraph (1)(b) of Section 3.12, Load Forecasting. o Long-Term Weekly Peak Demand Forecast, which is also required to be posted on the MIS Secure Area pursuant to Section 3.2.2, Demand Forecasts. Since the only remaining content in Section 3.2.3 relates to short-term system adequacy reports, this NPRR also proposes to change the title to Section 3.2.3 to “Short-Term System Adequacy Reports.” • Revises paragraphs (3)(a), (b), (c), (g), and (h) of Section 3.2.3, which relates to short-term adequacy reports, to reflect the requirement in amended Substantive Rule 25.505(d) that information concerning Resource availability be aggregated by Load Zone or area. • Deletes paragraphs (3)(e) and (f) of Section 3.2.3, which required that short-term adequacy reports include daily Ancillary Service requirements and transmission constraints that have a high probability of being binding in Security-Constrained Economic Dispatch (SCED) or the Day-Ahead Market (DAM) given the forecasted system conditions for each week including the effects of any transmission or Resource Outages. The requirement to include this information in ERCOT’s short-term adequacy reports was removed from Substantive Rule 25.505(d). • Deletes Section 3.2.4. The requirement for this report was removed from Substantive Rule 25.505 (formerly paragraph (c)). • Changes instances of “48 hours” to “three days” in Section 3.2.5 to align with a similar change made in Substantive Rule 25.505(f). • Changes instances of “annual Resource adequacy cycle” to “year” in Sections 4.4.11 and 4.4.11.1 to align with a similar change made in Substantive Rule 25.505(g). • Revises the formula for Initial Minimum Current Exposure (IMCE) in paragraph (2) of Section 16.11.4.1 to be based on the System-Wide Offer Cap (SWCAP) in effect, rather than the greater of the SWCAP and the Value of Lost Load (VOLL). This change reflects new Substantive Rule 25.505(g)(6)(E), which states that the VOLL will be equal to the value of the SWCAP in effect (i.e., SWCAP and VOLL will not vary from one another). 10/29/2019 ERCOT No 3.2.3, 3.2.4 (delete), 3.2.5, 4.4.11, 4.4.11.1, 16.11.4.1 Approved
12/10/2020

All sections except for Section 3.2.3(2)(a), (2)(b), (2)(c), (2)(g), and (2)(h)

NPRR979 Incorporate State Estimator Standards and Telemetry Standards into Protocols This NPRR incorporates the following Other Binding Documents into the Protocols: • State Estimator Standards • Telemetry Standards 10/29/2019 ERCOT No 2.1, 2.2, 3.10.5, 3.10.7.5, 3.10.7.5.1, 3.10.7.5.2, 3.10.7.5.3 (new), 3.10.7.5.4 (new), 3.10.7.5.5 (new), 3.10.7.5.6 (new), 3.10.7.5.7 (new), 3.10.7.5.8 (new), 3.10.7.5.8.1 (new), 3.10.7.5.8.2 (new), 3.10.7.5.9 (new), 3.10.7.5.10 (new), 3.10.9, 3.10.9.1, 3.10.9.2, 3.10.9.2 (new), 3.10.9.3 (new), 3.10.9.4 (new), and 3.10.9.5 (new) Approved
07/01/2021
NPRR980 Accounting for NSO Forced Outages and GINR Inactive Projects in the Report on the Capacity, Demand and Reserves in the ERCOT Region This Nodal Protocol Revision Request (NPRR) makes two changes to the Report on the Capacity, Demand and Reserves in the ERCOT Region methodology. First, it clarifies that Forced Outages greater than 180 days, submitted through a Notification of Suspension of Operations (NSO), should be excluded from the Report on the Capacity, Demand and Reserves in the ERCOT Region capacity estimates for the expected duration of the Forced Outages. Currently, such NSO Outages are not addressed in the Report on the Capacity, Demand and Reserves in the ERCOT Region capacity estimation methodology. This NPRR also adds language in Section 3.14.1.1 to clarify that the NSO outage information may be published in the Report on the Capacity, Demand and Reserves in the ERCOT Region. Second, Planning Guide Revision Request (PGRR) 066, Interconnection Request Cancellation and Creation of Inactive Status, which was approved by the ERCOT Board in December 2018, creates a new “Inactive” status for Generation Interconnection and Change Request (GINR) projects. This NPRR addresses the resulting reporting gap by specifying how “Inactive” GINR projects, as well as “Cancelled” projects, are to be treated in the Report on the Capacity, Demand and Reserves in the ERCOT Region. 11/05/2019 ERCOT No 3.2.6.2.2, 3.14.1.1 Approved
03/01/2020
NPRR982 Alignment of Block Load Transfer (BLT) Requirements Between Protocols and Nodal Operating Guide This Nodal Protocol Revision Request (NPRR) provides clarity to Market Participants and to ERCOT Staff by clarifying Block Load Transfer (BLT) treatment and by eliminating conflicting language in the Protocols and the Nodal Operating Guide, ensuring that a deployment of a BLT will be appropriately compensated. 11/19/2019 ERCOT No 6.5.9.5, 6.5.9.5.1, 6.5.9.5.2, 6.6.3.5 Approved
03/01/2020
NPRR983 Delete Remaining Grey-Boxed Language Associated with NPRR257, Synchronization with Nodal Operating Guide Section 9, Monitoring Programs and Changes to Posting Requirements of Documents Considered CEII This Nodal Protocol Revision Request (NPRR) deletes all remaining grey-boxed language associated with NPRR257. 11/20/2019 ERCOT No 8.1, 8.2, and 8.3 Approved
09/01/2020
NPRR984 Change ERS Standard Contract Terms This Nodal Protocol Revision Request (NPRR) changes the number of Emergency Response Service (ERS) Standard Contract Terms from three to four Standard Contract Terms per program year. 11/22/2019 ERCOT No 2.1, 3.2.6.2.1, 3.14.3.1 Approved
10/01/2021
NPRR985 Modify Forward Adjustment Factors to Include Pricing for the Current Operating Day This Nodal Protocol Revision Request (NPRR) modifies the time period used to compute the forward adjustment factor components of the Total Potential Exposure (TPE) calculation to clarify that the three forward weeks commence on the applicable Operating Day, rather than following the Operating Day. 11/22/2019 ERCOT No 16.11.4.3.3 Approved
05/29/2020
NPRR986 BESTF-2 Energy Storage Resource Energy Offer Curves, Pricing, Dispatch, and Mitigation This Nodal Protocol Revision Request (NPRR) sets forth provisions for Energy Offer Curves, Pricing, Dispatch, and Mitigation for Energy Storage Resources (ESRs) in the ERCOT market. 12/05/2019 ERCOT Yes 2.1, 2.2, 3.6.1, 3.8, 3.8.5 (delete), 4.4.9.2.3, 4.4.9.3, 4.4.9.4.1, 5.6.1, 6.4.3.1, 6.5.7.3, 6.6.3.1, and 6.6.3.2 Approved
04/02/2021
NPRR987 BESTF-3 Energy Storage Resource Contribution to Physical Responsive Capability and Real-Time On-Line Reserve Capacity Calculations This Nodal Protocol Revision Request (NPRR) implements the inclusion of the contribution of Energy Storage Resources (ESRs) to Physical Responsive Capability (PRC) and the Real-Time On-Line Reserve Capacity (RTOLCAP) in the Ancillary Service Imbalance Calculation. 12/09/2019 ERCOT Yes 6.5.7.5 and 6.7.5 Approved
NPRR988 Correction to Conditions for DAM Award Eligibility for PTP Obligations with Links to an Option This Nodal Protocol Revision Request (NPRR) allows for the correct and intended implementation of NPRR929 by replacing the word “or” with “and” in paragraph (1)(b)(i) of Section 4.4.6.3 to clarify that both conditions in paragraphs (1)(b)(i) and (1)(b)(ii) of Section 4.4.6.3 are necessary for determining whether a Point-to-Point (PTP) Obligation with Links to an Option bid is eligible to be awarded. 12/11/2019 ERCOT Yes 4.4.6.3 Approved
03/01/2020
NPRR989 BESTF-1 Energy Storage Resource Technical Requirements This Nodal Protocol Revision Request (NPRR) establishes technical requirements for Energy Storage Resources (ESRs) for Voltage Support Service (VSS) (including Reactive Power capability), and Primary Frequency Response. 12/16/2019 ERCOT Yes 2.1, 3.15, 3.15.1, 3.15.3, 6.5.7.7, 8.1.1.2.1.4, 8.5.1.1, 8.5.1.2, 8.5.2, and 8.5.2.1 Approved
NPRR990 Relocation of Combined Cycle Train to Resource Attribute This Nodal Protocol Revision Request (NPRR) deletes the remaining grey-box for NPRR889, RTF-1 Replace Non-Modeled Generator with Settlement Only Generator, and relocates the defined term Combined Cycle Train from underneath Resource to Resource Attribute. 12/16/2019 ERCOT No 2.1 Approved
09/01/2020
NPRR992 Updated Day-Ahead Liability for NPRR863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve This Nodal Protocol Revision Request (NPRR) updates language in Section 16.11.4.3.1, Day-Ahead Liability Estimate, to reflect changes implemented in NPRR863, Creation of ERCOT Contingency Reserve Service and Revisions to Responsive Reserve. 01/28/2020 ERCOT No 16.11.4.3.1 Approved
NPRR993 Grey Box Resolution re NPRR902 and NPRR928 This Nodal Protocol Revision Request (NPRR) addresses an anticipated redundancy and use of a defined term, both of which were irresolvable during the concurrent approval processes for NPRR902, ERCOT Critical Energy Infrastructure Information, and NPRR928, Cybersecurity Incident Notification. 01/29/2020 ERCOT No 1.3.4 and 16.19 Approved
09/01/2020
NPRR994 Clarify Generator Interconnection Neutral Project Classification This Nodal Protocol Revision Request (NPRR) clarifies which transmission improvement projects associated with the interconnection of new Generation Resources should be classified as “neutral” projects, including new substations. This NPRR also provides clarity in regards to which Generation Resource interconnection Transmission Facilities are considered when determining if ERCOT should perform an economic analysis pursuant to paragraph (2) of Section 3.11.6. 01/29/2020 ERCOT No 3.11.4.3, 3.11.6 Approved
03/01/2021
NPRR995 RTF-6 Create Definition and Terms for Settlement Only Energy Storage This Nodal Protocol Revision Request (NPRR) accomplishes objectives of the Resource Definition Task Force (RTF) undertaken at the direction of the Protocol Revision Subcommittee (PRS). Specifically, this NPRR: provides a definition for the term Settlement Only Energy Storage System (SOESS) and further defines them as transmission-connected or distribution-connected; relocates the definition for Settlement Only Generator (SOG) from underneath Resource to stand alone as its own unrelated term; and incorporates the relevant SOESS terms into the Market Information System (MIS) reporting created for SOGs via NPRR917, Nodal Pricing for Settlement Only Distribution Generators (SODGs) and Settlement Only Transmission Generators (SOTGs). 01/29/2020 Broad Reach Power No 1.2, 1.3.1.1, 1.6.5, 2.1, 2.2, 3.1.6.9, 3.7, 3.8.7, 3.10.1, 3.10.6, 3.10.7.2, 3.14.4.1, 6.3.2, 6.5.5.2, 6.5.9.4.2, 6.6.3.2, 6.6.3.9, 6.6.10, 8.1.1.4.2, 8.5.1.1, 8.5.1.2, 8.5.2, 8.5.2.1, 9.5.3, 9.17.1, 9.19.1, 10.1, 10.2.2, 10.2.3, 10.2.3.1, 10.2.4, 10.2.4.1, 10.3.2.3, 10.9.1, 11.1.6, 16.11.4.3.2, 16.5, 16.5.1.2, 22L, and 23I Approved
NPRR996 Alignment of Hub Bus Names Between Protocols and ERCOT Model This Nodal Protocol Revision Request (NPRR) aligns the Hub Bus names within Protocols with the substation names within the ERCOT model. 02/06/2020 ERCOT No 3.5.2.1, 3.5.2.3, and 3.5.2.4 Approved
09/01/2020
NPRR997 Natural Gas Pipeline Coordination Requirements for Resource Entities with Natural Gas Generation Resources This Nodal Protocol Revision Request (NPRR) requires a Resource Entity that controls a Generation Resource that relies on natural gas as its primary fuel source to submit a declaration contained in the summer weather preparedness form to ERCOT stating that the Resource Entity or the Resource Entity’s Qualified Scheduling Entity (QSE) has made a documented effort to communicate with the operator of each natural gas pipeline that is directly connected to its Generation Resource regarding impacts to the Generation Resource’s availability during the summer Peak Load Season of that year. 02/07/2020 ERCOT Yes 1.3.1.1, 3.21, 3.21.1 (new), 22 Attachment K, and 22 Attachment O (new) Approved
05/01/2020
NPRR998 ERS Deployment and Recall Messages This Nodal Protocol Revision Request (NPRR) establishes a requirement for ERCOT to post a message to the Market Information System (MIS) Public Area every time ERS is deployed or recalled. 02/20/2020 ERCOT Yes 6.5.9.4.2 Approved
04/02/2021
NPRR999 DC Tie Ramp Limitations This Nodal Protocol Revision Request (NPRR) revises Protocol Section 4.4.4 and creates new Protocol Section 4.4.4.3 to clarify that, in those cases where ERCOT determines that system conditions show insufficient ramp capability to meet the sum of all Direct Current Ties’ (DC Ties’) scheduled ramp, ERCOT may either (1) curtail DC Tie schedules or (2) require DC Tie Operators to resubmit e-Tags with an adjusted ramp duration. This NPRR is proposed in accordance with the May 23, 2017, order of the Public Utility Commission of Texas (PUCT) in Project No. 46304, Oversight Proceeding Regarding ERCOT Matters Arising Out of PUC Docket No. 45624 Relating to DC Tie Project Proposed by Southern Cross Transmission, LLC, which requires ERCOT to address a number of issues as a condition for the energization of the DC Tie project proposed by Southern Cross Transmission LLC (“Southern Cross”). Relevant here, Directive 3 in the order requires ERCOT to “determine what ramp rate restrictions, if any, will be necessary to accommodate the interconnection of the Southern Cross DC Tie.” 02/20/2020 ERCOT No 4.4.4 and 4.4.4.3 (new) Approved
NPRR1000 Elimination of Dynamically Scheduled Resources This Nodal Protocol Revision Request (NPRR) removes the term Dynamically Scheduled Resource (DSR) from the Protocols. 02/20/2020 Denton Municipal Electric No 2.1, 2.2, 3.2.5, 3.6.1, 3.9.1, 3.9.2, 3.14.3.1, 6.3, 6.3.1, 6.3.2, 6.4.2.1, 6.4.2.2 (delete), 6.4.2.3, 6.4.2.4, 6.4.2.5 (delete), 6.4.4, 6.4.5 (delete), 6.5.7.3, 6.5.7.6.2.3, 6.6.5.3, 8.1.1.4.1, 8.2, and 16.2.3.1 Approved
NPRR1001 Clarification of Definitions of Operating Condition Notice, Advisory, Watch, Emergency Notice, and Related Clarifications This Nodal Protocol Revision Request (NPRR) clarifies that an Emergency Notice is the type of communication that will be issued when ERCOT is operating in an Emergency Condition, that the issuance of an Operating Condition Notice (OCN), Advisory, or Watch does not mean that ERCOT is operating in an Emergency Condition, and it makes a few minor associated clarifications. 02/24/2020 ERCOT No 2.1, 3.1.4.6, 3.10.7.5.1, 3.15.3, 6.1, 6.5.9.1, 6.5.9.3, 6.5.9.3.1, 6.5.9.3.2, 6.5.9.3.3, 6.5.9.3.4, 6.5.9.4 Approved
01/01/2021
NPRR1002 BESTF-5 Energy Storage Resource Single Model Registration and Charging Restrictions in Emergency Conditions This Nodal Protocol Revision Request (NPRR), along with its related Revision Requests, establishes Energy Storage Resource (ESR) "single model" registration and charging restrictions in Emergency Conditions. 02/25/2020 ERCOT No 3.7, 3.7.1.3 (new), 3.8.6, 6.5.9.3.4, 6.5.9.4.2, 10.2.3, 11.1.6, 11.2.1, and 16.5 Approved
NPRR1003 Elimination of References to Resource Asset Registration Form This Nodal Protocol Revision Request (NPRR) replaces all remaining references to the Resource Asset Registration Form (“RARF”) with more general language in anticipation of the elimination of the RARF. 02/26/2020 ERCOT No 2.1, 3.2.6.2.2, 3.14.4.1, 8.1.1.2.1.4, 23 Form N Approved
09/01/2020
NPRR1004 Load Distribution Factor Process Update This Nodal Protocol Revision Request (NPRR) creates a new process for determining the Load distribution factors used in the Congestion Revenue Rights (CRR) Auctions and Day-Ahead Market (DAM) clearing. The current process uses proxy days for non-Private Use Network Load and historical average net power consumption for Private Use Network Load. The new process will use Load forecasting models and existing validation/error correction to determine daily Load distribution factors. 02/26/2020 ERCOT No 3.12, 4.5.1, 7.5.1 Approved
NPRR1005 Clarify Definition of Point of Interconnection (POI) and Add Definition Point of Interconnection Bus (POIB) This Nodal Protocol Revision Request (NPRR) proposes the following revisions: • Revises the definition of Point of Interconnection (POI) to refer to any physical location where a Generation Entity’s Facilities connect to a Transmission Service Provider’s (TSP’s) Facilities, and removes references to Load interconnections, since the only relevant Load connection points are those associated with the Generation Entity’s generators, which are included in the term “Generation Entity’s Facilities.” • Introduces the term “Point of Interconnection Bus (POIB)” to refer to the Electrical Bus in the substation that is closest to the Generation Resource’s POI, or any electrically equivalent Electrical Bus in that substation, for each TSP-owned substation to which the Generation Resource interconnects. • Changes POI to POIB throughout the Protocols in appropriate cases based on the above clarifications. • Removes the reference to POI in Section 2.1 in the definition of Aggregate Generation Resource because having a common Generator Step Up (GSU) transformer would aggregate output before the POI, and the generators’ separate outputs do not have separate POIs. • Clarifies Section 10.3.2.3 to specify that, at a given Generation Resource Facility, generation and associated Load must either be physically metered at each POI or Service Delivery Point, or loss-compensated to the applicable POI in accordance with Section 10.3.2.2. • Adds NPRR917, Nodal Pricing for Settlement Only Distribution Generators (SODGs) and Settlement Only Transmission Generators (SOTGs), greyboxed language to Section 10.3.2.3 and removes the greybox, as there is no system implementation required for language in Section 10.3.2.3. • Removes POI from Section 23, Form K because it is used there incorrectly. 02/26/2020 ERCOT No 2.1, 2.2, 3.2.6.2.2, 3.10.3.1, 3.10.7.2, 3.10.7.3, 3.10.7.5.2, 3.15, 3.15.1, 3.15.2, 6.5.7.7, 10.3.2.3, and 23K Approved
NPRR1006 Update Real-Time On-Line Reliability Deployment Price Adder Inputs to Match Actual Data When the Real-Time On-Line Reliability Deployment Price Adder was created through NPRR626, Emergency Response Service (ERS) Resources were presumed to return to service on a linear curve over ten hours following recall. However, NPRR626 explicitly stated that: “The restoration period shall be reviewed by TAC at least annually, and ERCOT may recommend a new restoration period to reflect observed historical restoration patterns.” Actual data from summer 2019 provided by ERCOT shows the following: • On August 13th, 38% returned to service after one hour, 78% returned to service after two hours, and 100% returned to service after three hours. • On August 15th, 42% of the ERS MWs returned to service after one hour, 83% returned to service after two hours, and 93% returned to service after three hours. • On January 6, 2014, ERS MWs returned to service after approximately 30 intervals or 7.5 hours. It is appropriate to update the Real-Time On-Line Reliability Deployment Price Adder inputs to reflect a more realistic time period based on the actual data from the ERS deployments last summer as well as those in winter months since ERS is a year-round program. Accordingly, this NPRR proposes to return the ERS resources in a linear curve over a four and a half-hour period following recall, rather than ten hours, to account for the data seen from summer 2019 as well as winter 2014 with the recognition that three days’ data does not provide definitive information for further reduction. The NPRR also changes the process for updating this parameter in the future so that it can be updated by TAC each year as appropriate, without the need to file an NPRR. During periods of EEA 2, ERCOT instructs TDSPs to reduce Load through deployment of any available Load management plans. The December 2019 Capacity Demand and Reserves Report notes TDSP Load management programs account for 257 MW of demand reduction capacity. Inclusion of this capacity in the Real-Time On-Line Reliability Deployment Price Adder is consistent with its intent, which mitigates price distortions resulting from out-of-market actions. 03/03/2020 TIEC Yes 6.3.2, 6.5.7.3.1, 6.7.5, 6.7.6 Approved
06/10/2020

Section 6.5.7.3.1(2)(f)

NPRR1007 RTC – NP 3: Management Activities for the ERCOT System This Nodal Protocol Revision Request (NPRR) updates the Management Activities for the ERCOT system in the Protocols to address changes associated with the implementation of Real-Time Co-optimization (RTC) of energy and Ancillary Services. 03/25/2020 ERCOT Yes 3.2.3, 3.2.5, 3.5.2.1, 3.5.2.2, 3.5.2.3, 3.5.2.4, 3.5.2.5, 3.5.2.6, 3.5.2.7, 3.6.1, 3.8.1, 3.8.2, 3.8.3, 3.8.3.1 , 3.9, 3.9.1, 3.9.2, 3.10.7.2.1, 3.14.4.1, 3.16, 3.17.1, and 3.18 Approved
NPRR1008 RTC – NP 4: Day-Ahead Operations This Nodal Protocol Revision Request (NPRR) updates Day-Ahead Operations in the Protocols to address changes associated with the implementation of Real-Time Co-optimization (RTC) of energy and Ancillary Services. 03/25/2020 ERCOT Yes 4.1, 4.1.2, 4.2.1.1, 4.2.1.2, 4.3, 4.4.4, 4.4.7.1, 4.4.7.1.1, 4.4.7.2, 4.4.7.2.1, 4.4.7.2.2, 4.4.7.2.3 (new), 4.4.7.2.4, 4.4.7.3, 4.4.7.4 (delete), 4.4.8, 4.4.9.3.1, 4.4.9.3.3, 4.4.9.4.1, 4.4.9.5.1, 4.4.10, 4.4.11, 4.4.11.1, 4.4.12 (new), 4.5.1, 4.5.2 (delete), 4.5.3, 4.6.2.3.1, 4.6.4, 4.6.4.1.1, 4.6.4.1.2, 4.6.4.1.3, 4.6.4.1.4, 4.6.4.1.5, 4.6.4.2.1, 4.6.4.2.2, 4.6.4.2.3, 4.6.4.2.4, and 4.6.4.2.5 Approved
NPRR1009 RTC – NP 5: Transmission Security Analysis and Reliability Unit Commitment This Nodal Protocol Revision Request (NPRR) updates Transmission Security Analysis and Reliability Unit Commitment (RUC) to address changes associated with the implementation of Real-Time Co-optimization (RTC) of energy and Ancillary Services. 03/25/2020 ERCOT Yes 5.1, 5.2.2.1, 5.2.2.2, 5.3, 5.4, 5.4.1 (new), 5.5.2, 5.6.2, 5.7.1.3, 5.7.1.4, 5.7.4.1.1, and 5.8 Approved
NPRR1010 RTC – NP 6: Adjustment Period and Real-Time Operations This Nodal Protocol Revision Request (NPRR) updates the Adjustment Period and Real-Time Operations in the Protocols to address changes associated with the implementation of Real-Time Co-optimization (RTC) of energy and Ancillary Services. 03/25/2020 ERCOT Yes 6.1, 6.3, 6.3.1, 6.3.2, 6.4.2.3, 6.4.3.1, 6.4.3.1.1, 6.4.4, 6.4.4.1 (delete), 6.4.4.2, 6.4.5, 6.4.6, 6.4.7, 6.4.7.1, 6.4.9, 6.4.9.1, 6.4.9.1.1, 6.4.9.1.2 (delete), 6.4.9.1.2 (new), 6.4.9.1.3 (delete), 6.4.9.2 (delete), 6.4.9.2.1 (delete), 6.4.9.2.2 (delete), 6.4.9.2.3 (delete), 6.5.1.1, 6.5.1.2, 6.5.5.2, 6.5.7, 6.5.7.1.12, 6.5.7.1.13, 6.5.7.2, 6.5.7.3, 6.5.7.3.1, 6.5.7.4.1 (new), 6.5.7.5, 6.5.7.6.1, 6.5.7.6.2, 6.5.7.6.2.1, 6.5.7.6.2.2, 6.5.7.6.2.3, 6.5.7.6.2.4, 6.5.9.2, 6.5.9.3.3, 6.5.9.3.4, 6.5.9.4, 6.5.9.4.2, 6.6.1, 6.6.1.1, 6.6.1.2, 6.6.1.6 (new), 6.6.1.7, 6.6.3.1, 6.6.3.7, 6.6.3.9, 6.6.5.1, 6.6.5.1.1.1, 6.6.5.1.1.2, 6.6.5.1.1.3, 6.6.5.1.1.4, 6.6.5.2, 6.6.5.3, 6.6.5.3.1, 6.6.5.4, 6.6.5.5, 6.6.5.5.1, 6.6.5.6, 6.6.9, 6.6.9.1, 6.6.9.2, 6.6.12.1, 6.7.1 (delete), 6.7.2 (delete), 6.7.2.1 (delete), 6.7.2.2 (delete), 6.7.3 (delete), 6.7.4, 6.7.5, 6.7.5.1 (new), 6.7.5.2 (new), 6.7.5.3 (new), 6.7.5.4 (new), 6.7.5.5 (new), 6.7.5.6 (new), 6.7.5.7 (new), 6.7.5.8 (new), 6.7.6, and 6.7.7 (delete) Approved
NPRR1011 RTC – NP 8: Performance Monitoring This Nodal Protocol Revision Request (NPRR) updates performance monitoring in the Protocols to address changes associated with the implementation of Real-Time Co-optimization (RTC) of energy and Ancillary Services. 03/25/2020 ERCOT Yes 8.1.1.1, 8.1.1.2, 8.1.1.2.1, 8.1.1.2.1.1, 8.1.1.2.1.2, 8.1.1.2.1.3, 8.1.1.2.1.6, 8.1.1.3, 8.1.1.3.1, 8.1.1.3.2, 8.1.1.3.3, 8.1.1.3.4, 8.1.1.4.1, 8.1.1.4.2, 8.1.1.4.3, 8.1.1.4.4, 8.1.2, and 8.5.1.1 Approved
NPRR1012 RTC – NP 9: Settlement and Billing This Nodal Protocol Revision Request (NPRR) updates Settlement and Billing in the Protocols to address changes associated with the impleme