Withdrawn Nodal Protocol Revision Requests (NPRRs)
# Title Description Date Posted Sponsor Urgent Protocol Sections Current Status Effective Date(s)
NPRR040 Synchronization of Emergency Electric Curtailment Plan (EECP) Event Realignment This NPRR synchronizes the Nodal Protocols with PRR682, EECP Event Realignment, which was approved by the ERCOT Board on November 14, 2006. 02/16/2007 Operating Guides Revision Task Force No 2.1,,, Withdrawn
NPRR074 Revisions to Monitoring and Qualification Tests in Section 8, Performance Monitoring and Compliance 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approved by TPTF located at http://nodal.ercot.com/docs/pd/mms/index.html#oth. 06/19/2007 ERCOT Staff No,,,,,, Withdrawn
NPRR093 Clarification to Definition of DUNS Number; Section 2, Definitions and Acronyms This NPRR revises and clarifies the definition of "DUNS Number" in Section 2 of the Nodal Protocols. 12/14/2007 ERCOT No 2.1 Withdrawn
NPRR104 Corrections and Clarifications for Real Time Settlements and Ancillary Service Net Obligations This Nodal Protocol Revision Request (NPRR) makes corrections and clarifications to existing formulas for Real-Time Settlement and the Day-Ahead and Real Time Ancillary Services Net Obligations. 02/15/2008 ERCOT Staff No, Regulation Up Service Charge;, Regulation Down Service Charge;, Responsive Reserve Service Charge;, Non-Spinning Reserve Service Charge;, Real Time Energy Imbalance Payment or Charge at a Resource Node;, Base Point Deviation Charge for Over Generation;, RMR Standby Payment;, Black Start Capacity Payment;, Payment for Emergency Power Increase Directed by ERCOT; 6.6.10, Real Time Revenue Neutrality Allocation; and 6.7.3, Adjustments to cost Allocations for Ancillary Services Procurement . Withdrawn
NPRR115 Grey-Boxing of Settlement and Billing Related Information Calculation This Nodal Protocol Revision Request (NPRR) "grey-boxes" the variable, DAOPTPRINFO(j, k), in Section and the variable, RTOPTPRINFO(j, k), in Section "Grey-boxing" indicates a delay in the availability of these functionalities until ERCOT is able to implement an automated solution. 03/17/2008 ERCOT Staff No, Payments for PTP Options Settled in DAM; and, Payments for PTP Options Settled in Real-Time Withdrawn
NPRR116 Addition of Commercially Traded Points to Settlement Point List Adds settlement points to the list that are commercially traded. 03/25/2008 DB Energy Trading No 2.1 Withdrawn
NPRR121 System Parameters Posting Frequency This Nodal Protocol Revision Request (NPRR) revises the Market Information System (MIS) posting frequency from ten seconds to three minutes. 03/31/2008 ERCOT Staff No, Ancillary Services Capacity Monitor Withdrawn
NPRR125 Creation of a New Trading Hub at Venus Switching Station This Nodal Protocol Revision Request (NPRR) creates a new trading hub at the Venus Switching Station. 04/11/2008 DB Energy Trading No, Venus 345 kV Hub (Venus 345) (New) Withdrawn
NPRR137 Synchronization and Update of Section 21 This Nodal Protocol Revision Request (NPRR) synchronizes the Zonal Protocol Section 21 with the Nodal Protocols, revises the title of this Section to properly reflect its scope to include System Change Requests (SCR), and updates the process to reflect current practice. This NPRR also incorporates PRR753, PRR Appeals Process. 06/24/2008 ERCOT Staff No 21, Process for Protocol Revision Withdrawn
NPRR147 DAM Short Pay Changes This Nodal Protocol Revision Request (NPRR) changes the way short pays to the Day-Ahead Market (DAM) are handled. This NPRR reallocates short payments using a procedure that draws from the Congestion Revenue Right (CRR) Auction revenue account first and then draws any additional shortfalls from the CRR Balancing Account. 08/13/2008 Clayton Greer on behalf of the Wholesale Market Subcommittee (WMS) No 7.5.7, 7.6,, 9.4.3, 9.10, 9.12 and 9.13 Withdrawn
NPRR151 Clarify Definition of a Generator Output Breaker in the Outage Scheduler This Nodal Protocol Revision Request (NPRR) clarifies the definition of which "generator output breakers" are exempt in the Outage Scheduler. 09/08/2008 Anthony Alford w/ CenterPoint Energy No, Continuous Telemetry of the Status of Breakers and Switches Withdrawn
NPRR179 ERCOT Polled Settlement Load Data This Nodal Protocol Revision Request (NPRR) removes the requirement for ERCOT to provide ERCOT Polled Settlement Load data via an 867_03. 06/09/2009 Calvin Opheim No 11.1.10 Withdrawn
NPRR190 Clarification of Resource Definitions and Resource Registration of Self-Serve Generators for Reliability Purposes This Nodal Protocol Revision Request (NPRR) adds language to acknowledge the existence of Generation Resources that have no or minimal injection onto the ERCOT System that qualify either as distributed generation or are registered with the Public Utility Commission of Texas (PUCT) according to P.U.C. Subst. R. 25.109, Registration of Power Generation Companies and Self-Generators, as a self-generator but yet are required to participate with ERCOT for reliability purposes. 08/17/2015 ERCOT No 2.1, 2.2,,,,, 3.1.6,,,, 6.5.1,, 6.5.7,, 6.5.8, 6.5.9,, 16.5, Withdrawn
NPRR215 Resolution of Alignment Item A151 - Removal of Posting Requirement for RMR Services This Nodal Protocol Revision Request (NPRR) removes the redundant posting of Reliability Must-Run (RMR) energy deployment. 03/15/2010 ERCOT No 6.3.2 Withdrawn
NPRR234 Resolution of Alignment Item A32, A147, A155, A159, and A187 - Clarify General Capacity Testing and Net Dependable Capability This Nodal Protocol Revision Request (NPRR) clarifies Seasonal reporting of Net Dependable Capability (NDC). The NPRR also clarifies unannounced testing of High Sustained Limit (HSL). 05/13/2010 John Adams and John Dumas No 2.1, Definitions 2.2, Acronyms, Deratings 3.2.5, Publication of Resource and Load Information 6.4.5, Resource Status, Ancillary Service Qualification and Testing, General Capacity Testing Requirements Withdrawn
NPRR334 Incorporate Resource Limit for the Amount of Regulation Service that may be Provided from a Generation Resource During any Operating Hour This Nodal Protocol Revision Request (NPRR) adds language to incorporate a percentage requirement limiting the amount of Regulation Service that Generation Resources may provide; and to provide for an annual ERCOT review of the percentage requirement limiting the amount of Regulation Service that Generation Resources may provide. 02/25/2011 ERCOT No 3.16, 3.18 Withdrawn
NPRR340 Introduction and Definition of Duration-Limited Resources (formerly "Unannounced HSL test for Duration-Limited Resources") This Nodal Protocol Revision Request (NPRR) defines Duration-Limited Resource and amends the General Capacity Testing Requirements to reflect operational characteristics of this type of Resource. 03/21/2011 Praveen Kathpalon on behalf of AES Yes 2.1, 3.17.2, 3.17.3, Withdrawn
NPRR345 EILS Availability Calculation Post-Depletion This NPRR adds language to remove a deficiency in the calculation formula for Emergency Interruptible Load Service (EILS) availability factors. 04/05/2011 Energy Curtailment Specialists, Inc No Withdrawn
NPRR366 Generation Resource Power Factor Criteria Clarification This Nodal Protocol Revision Request (NPRR) adjusts the power factor criteria for Generation Resources to align with actual Generation Resource capabilities. 05/04/2011 LCRA No 2.1, 3.15, 3.15.1 Withdrawn
NPRR371 Telemetered LSL for QSGR This Nodal Protocol Revision Request (NPRR) will allow QSGRs to immediately telemeter the physical Low Sustained Limit (LSL) upon a SCED energy deployment. 05/31/2011 Topaz Power Yes 3.8.3 Withdrawn
NPRR373 Revised State Estimator Reports on Individual Transmission Load on Electrical Buses The Nodal Protocol Revision Request (NPRR) reinstates the State Estimator Load Reports, which will be published every five minutes on the Market Information System (MIS) Secure Area. The NPRR requires ERCOT to redact station codes with less than ten Electric Service Identifiers (ESI IDs) to protect confidential information. 06/03/2011 WMS No Withdrawn
NPRR378 Posting of the ERCOT Short-Term Load Forecast and the Aggregated HDL and LDL Used in SCED This Nodal Protocol Revision Request (NPRR) adds a requirement for ERCOT to post on the Market Information System (MIS): (a) the ERCOT Short-Term Load Forecast (STLF) for the current Security-Constrained Economic Dispatch (SCED); (b) the STLF for the next or prompt five-minute SCED interval; and (c) the STLF effective within 15 minutes. This NPRR also clarifies SCED up/down reserves and adds capacity for the aggregate sum of the High Dispatch Limits (HDLs) and Low Dispatch Limits (LDLs) for the On-Line Generation Resources in each five-minute SCED interval. 06/08/2011 Floyd Trefny No Withdrawn
NPRR381 Registration Requirements for Interconnecting Entities This Nodal Protocol Revision Request (NPRR) creates a new type of Market Participant called an "Interconnecting Entity" (IE). The NPRR requires Entities who wish to interconnect a new Resource or make certain changes to a Resource to register with ERCOT and to comply with ERCOT standards and procedures during the interconnection or change process. Entities that are not presently registered as Resource Entities will now be required to register as IEs before they may seek registration as Resource Entities. Existing Resource Entities who seek interconnection of a new Resource or certain changes to an existing Resource must amend their registration to add the IE designation, and may amend the registration to withdraw the IE designation when the new Resource is energized or the proposed changes are implemented. This NPRR does not require current Resource Entities to seek retroactive registration as an IE for Resources already energized. However, this NPRR would require Entities currently involved in the interconnection process to register as IEs. 06/08/2011 ERCOT No 1.6.5, 2.1. 2.2, 3.3.1, 16.5, Registration as a Resource Entity 16.16, (new) 16.16.1, new) 16.16.2, Registration Process for an Interconnecting Entity (new),(new),, (new) 16.16.3, (new) 22, Attachment A, 22, Attachment C, Withdrawn
NPRR409 Outage Planning Criteria Clarifications and Enhancements to Narrow Gap Between Real-Time Operations and Outage Planning This NPRR adds a new definition of Outage Planning Contingencies to be consistent with NOGRR078 and PGRR011. This NPRR also revises factors used by ERCOT to evaluate requests for Generation and Transmission Outages received from Market Participants to allow for 90th percentile variation of weather driven Load, generation availability, and transmission line ratings of dynamically rated lines. This NPRR ensures that Outage planning studies do not double count generation capacity as being available simultaneously for both congestion management and Ancillary Services including Responsive Reserve (RRS), Regulation Up (Reg-Up), and Non-Spinning Reserve (Non-Spin), unless ERCOT Operations has processes in place to allow for location specific deployment of the Ancillary Service reserves for congestion management purposes. Finally, this NPRR ensures that, if in Real-Time operations ERCOT determines that a generic constraint definition and associated transfer limit(s) is required for secure operation of the ERCOT System, then this same generic constraint shall be similarly modeled in Outage planning studies. 09/07/2011 Luminant Energy No 2.1, 2.2, Withdrawn
NPRR410 Definition of an Energy Storage Resource This Nodal Protocol Revision Request (NPRR) creates a definition for an Energy Storage Resource and creates an Energy Storage Load Zone for each Energy Storage Resource capable of storing and generating one MW or greater. 09/07/2011 Xtreme Power Inc. No 3.4.1, 3.4.2, 3.4.5, 3.4.5 (new), Withdrawn
NPRR420 Correct South Hub Back to Original Definition This Nodal Protocol Revision Request (NPRR) corrects changes made by NPRR175, Hub Bus List Clarification, that inadvertently deleted the Sandow switching station (formerly SDSES) from the Hub and added two additional Fayette stations to the calculation 10/05/2011 Morgan Stanley No Withdrawn
NPRR429 HASL Offset Provision This Nodal Protocol Revision Request (NPRR) creates a High Ancillary Service Limit (HASL) Offset option that allows Qualified Scheduling Entities (QSEs) to move their HASL to a lower MW value if desired. The HASL Offset is added to other Ancillary Services being provided by the Resource to develop the HASL change. 11/22/2011 Morgan Stanley No 2.1, 3.9, 3.9.1,, Withdrawn
NPRR486 Calculation of Generation to be Dispatched This Nodal Protocol Revision Request (NPRR) proposes revisions to specify the method for calculation of generation to be dispatched. This NPRR specifies that the generation to be dispatched input should be based on the sum of expected Updated Desired Base Points for all Generation Resources plus the amount of Regulation Service deployed at the time of the determination of GTBD for each execution of the Security-Constrained Economic Dispatch (SCED). 10/03/2012 Luminant Energy Company LLC Pending Withdrawn
NPRR490 Clarification of TSP Definition and Confidentiality Obligations This Nodal Protocol Revision Request (NPRR): · Broadens the definition of "Transmission Service Provider (TSP)" to include not only those transmission-owning Entities subject to the jurisdiction of the Public Utility Commission of Texas (PUCT), but also Entities registered as Transmission Operators (TOs) with either ERCOT or the North American Electric Reliability Corporation (NERC); · Prohibits TSPs that are not already subject to the jurisdiction of the PUCT from owning, operating, controlling, or submitting schedules, offers or bids on behalf of any Resource; · Requires TSPs that are not already subject to the jurisdiction of the PUCT to comply with certain sections of P.U.C. Subst. R. 25.272, Code of Conduct for Electric Utilities and Their Affiliates; and· Requires a Transmission and/or Distribution Service Provider (TDSP) to sign a confidentiality agreement with ERCOT providing that the TDSP will not disclose certain confidential information received as a result of its status as TDSP. 10/03/2012 ERCOT No 2.1, 2.2,, 16.4, Withdrawn
NPRR505 ERS Weather-Sensitive Loads 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 creates a new category of ERS Resource — ERS Weather-Sensitive Load — and provides for their participation in ERS under the following conditions: · ERS Weather-Sensitive Loads would be eligible to participate as ERS Weather-Sensitive Loads only during ERS Time Periods that correlate to peak weather conditions (e.g., Business Hours 2 and Business Hours 3 during the June-September Standard Contract Term). · Qualified Scheduling Entities (QSEs) representing ERS Weather-Sensitive 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 growth and/or churn, QSEs representing ERS Weather-Sensitive Loads would be allowed to adjust the population of their aggregations on a monthly basis during an ERS Standard Contract Term. · The NPRR establishes a structure of payment reductions for QSEs to protect against over-stated offers or projected program growth. · ERS Weather-Sensitive 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, ERS Weather-Sensitive Loads are subject to up to eight ERCOT-administered unannounced tests per ERS Standard Contract Term. 11/28/2012 ERCOT No 2.1, (new),,, (new), (new), (new), (new), (new), (new), Withdrawn
NPRR535 Resource Status Startup - Shutdown This Nodal Protocol Revision Request (NPRR) would allow Inter-Control Center Communications Protocol (ICCP) data required by ERCOT to include a Resource Status for ONTEST, STARTUP, and SHUTDOWN. A Resource using ONTEST or STARTUP status is not available to Security-Constrained Economic Dispatch (SCED) calculations. We believe that A Resource using SHUTDOWN status should also not be available to SCED calculations. 04/11/2013 GDF Suez Energy Marketing NA No Withdrawn
NPRR572 Asynchronous Tie Interconnection Process This Nodal Protocol Revision Request (NPRR) references the formal Asynchronous Tie interconnection process which is being added to the Planning Guide via PGRR034, Asynchronous Tie Interconnection Process; and defines Asynchronous Tie. 10/09/2013 Pattern Energy No 2.1, 3.11.6 Withdrawn
NPRR583 Validate That CSA Bypass Code in a Move-Out Request is From Current CSA CR of Record This Nodal Protocol Revision Request (NPRR) requires ERCOT to validate that the Competitive Retailer (CR) submitting an 814_24, Move-Out Request containing the Continuous Service Agreement (CSA) bypass code, is also the current CSA CR. 12/04/2013 Diana Rehfeldt on behalf of Texas Standard Electronic Transaction (SET) Working Group No, Withdrawn
NPRR585 Clarification of Administrative Pricing Requirements for Self-Committed Combined Cycle Combustion Turbines on a Resource Committed by RUC This Nodal Protocol Revision Request (NPRR) clarifies that for Qualified Scheduling Entities (QSEs) managing Combined Cycle Trains, self-commitment of combustion turbines, in addition to a configuration committed by Reliability Unit Commitment (RUC), may be priced at values other than the System-Wide Offer Cap (SWCAP) and should precede RUC-committed MW in merit order on the Energy Offer Curve for the entire Combined Cycle Train. 12/10/2013 Calpine No Withdrawn
NPRR623 Measurement and Evaluation of ERS This Nodal Protocol Revision Request (NPRR) proposes minor technical modification to the Protocols to explicitly account for the possibility that an ERS Load, and the ERS Generation located behind the same Point of Interconnection (POI) to the ERCOT Transmission Grid, can both jointly, or independently, provide ERS services and be evaluated appropriately, regardless of the operating characteristics of the industrial facility and its ERS baseline assignment. 05/08/2014 Good Company Associates No,, Withdrawn
NPRR625 Clarification of Non-Spin Requirements and Operational Procedures Seeks to correct Nodal Protocol language that has been found to be unclear or ambiguous to Qualified Scheduling Entities (QSEs) in actual Real-Time Operations and clarifies specific requirements related to the scheduling and deployment of Non-Spinning Reserve (Non-Spin) Ancillary Services. The need for these changes has become apparent through actual operating experience with Ancillary Service provisions in the Nodal Market over time. 05/13/2014 Luminant No 3.8.3, 3.18,,, Withdrawn
NPRR638 Revisions to Certain Price Components of EAL 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) calculations to use Settlement Point specific prices surveyed over historic calendar days both ahead and lagging the current Operating Day. It is requested that TAC provide recommendations for the values for parameters lrq and lrt in Section, represented by variable X, and parameters ldq and ldt in Section, represented by variable Y. 07/02/2014 ERCOT No,,, Withdrawn
NPRR650 Clarification of Real-Time Telemetry for Split Generation Resources This Nodal Protocol Revision Request (NPRR) clarifies and aligns the Protocols with historical practices in representing Split Generation Resources in Real-Time operations. 09/15/2014 ERCOT No 3.8.1, Withdrawn
NPRR656 Discontinue the Long-Term Weekly Peak Demand Forecast, 36 Month Resource Capacity Report, and Projected Transmission Constraints for Medium Term PASA Reports This Nodal Protocol Revision Request (NPRR) proposes the discontinuation of the posting requirement for the Long-Term Weekly Peak Demand Forecast, 36 Month Resource Capacity Report, ERCOT Market Information List (EMIL) ID, NP3-760-M, 36 Month Resource Capacity Report, EMIL ID NP3-775-M and Projected Transmission Constraints for Medium Term PASA Reports, EMIL ID NP3-776-M. 09/24/2014 Julie Thomas on behalf of the MISUG No 3.2.3 Withdrawn
NPRR675 Modifications for ERS Estimates in Calculating Future Planning Reserves This Nodal Protocol Revision Request (NPRR) makes changes to the methodology for forecasting Emergency Response Service (ERS) capacity for the Capacity, Demand, and Reserves (CDR) and other ERCOT resource adequacy reports. 12/10/2014 ERCOT No Withdrawn
NPRR685 Change Criteria for Resource Opportunity Outages This Nodal Protocol Revision Request (NPRR) broadens the criteria for Resources to begin Opportunity Outages prior to already approved Planned Outages. Currently the Nodal Protocol language in Section, Opportunity Outage, only allows a Resource owner to begin an Opportunity Outage prior to a previously scheduled Planned Outage when the Resource is forced offline due to a Forced Outage. During the initial drafting of the Nodal Protocols, Texas Nodal Team discussions obviously anticipated the need to allow a Resource to begin a Planned Outage early when the unit tripped close to the Planned Outage start date. However, market experience to date has shown that Opportunity Outages, absent a Forced Outage, make sense for both the Resource Owner as well as the market at large when prevailing market fundamentals do not indicate the Resource is economic to run. Calpine recommends that the language that contains the criteria for Opportunity Outage be broadened to include both Resources experiencing a Forced Outage prior to Planned Outages as well as Resource owners simply desiring to start a Planned Outage early in response to market economics. 02/24/2015 Calpine No Withdrawn
NPRR697 Disclosure of Protected Information for Research and Coordination Purposes ERCOT is often invited to participate in government-funded research projects that aim to solve a variety of problems affecting grid operations. While ERCOT could substantially benefit from many of these projects, ERCOT’s participation in them may be limited when disclosure of Protected Information would be required. The Protocols do not clearly authorize ERCOT to share Protected Information with research organizations or research project participants unless they happen to qualify under one of the explicit exceptions in Section 1.3.6, such as the “vendor or prospective vendor of goods and services” exception in paragraph (1)(h). But requiring ERCOT to incur some expense under the vendor exception as a condition for sharing Protected Information as part of a research project makes little sense when the organization sponsoring the research is willing to provide valuable information to ERCOT at no cost. This Nodal Protocol Revision Request (NPRR) creates a research-related exception to the general prohibition against disclosure of Protected Information. Specifically, this NPRR allows ERCOT to disclose Protected Information to Entities involved in government-funded research projects where ERCOT has determined that (1) the disclosure of Protected Information would facilitate research that is expected to benefit ERCOT’s operations, (2) the value of the research facilitated by the disclosure of Protected Information is generally expected to exceed the risk of any improper use or disclosure of the Protected Information, and (3) the Entity (or Entities) to whom the information would be disclosed has no financial interest in any ERCOT Market Participant. If ERCOT determines that the research proposal meets this test, the research organization and any other project participants that would have access to Protected Information would be required to execute a Non-Disclosure Agreement that would forbid disclosure to any other entity, except as explicitly authorized in writing by ERCOT. ERCOT would also be required to issue a Market Notice upon entering such an arrangement. This NPRR also explicitly authorizes ERCOT to share Protected Information with other ISOs/RTOs and electric utilities in other control areas when necessary to coordinate operations between Control Areas, including the synchronization and dispatch of DC Ties, Switchable Generation Resources, and the coordination of Block Load Transfers. The NPRR requires ERCOT to obtain the agreement of the ISO/RTO or utility not to disclose Protected Information as a condition for receiving that information. This NPRR also deletes paragraph (2) of Section 1.3.6, which appears to have been mistakenly separated from the language in current paragraph (1)(j) in the initial version of the Nodal Protocols in March 2005. Comments submitted in PRR 461, Confidentiality Exceptions for Reliability Analysis, in 2003 indicate that this language was intended to ensure that ERCOT would not disclose Resource-specific output, availability, and other data to Market Participants outside of task forces and working groups within ten days of the relevant Operating Day. However, this restriction was superseded by the specific disclosure timelines adopted by the Public Utility Commission of Texas (PUCT) in 2006 in P.U.C. Substantive Rule 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region. ERCOT therefore proposes to delete this language. 04/28/2015 ERCOT No 1.3.5, 1.3.6 Withdrawn
NPRR707 Provision of Transmission System Voltage Telemetry to QSEs This Nodal Protocol Revision Request (NPRR) requires ERCOT to provide, upon request, transmission system voltage at each Generation Resource Point of Interconnection (POI) to the transmission system through telemetry via Inter-Control Center Communications Protocol (ICCP). This is necessary for the Generation Resource to comply with the latest version of North American Electric Reliability Corportation (NERC) Standard VAR-002-3, Generator Operation for Maintaining Network Voltage Schedules. Paragraph R2, 2.3, requires generation operators to monitor the voltage at the location specified in their voltage schedule. This data is readily available from ERCOT and provision of this data should not violate any of the provisions of Nodal Protocol Section 1.3, Confidentiality. 05/22/2015 Luminant No Withdrawn
NPRR711 Increase the Interval Data Recorder Meter Mandatory Install Requirement from 700 kW/kVA to 1.5 MW/MVA This Nodal Protocol Revision Request (NPRR) increases the Interval Data Recorder (IDR) Meter mandatory installation requirement from 700 kW/kVA to 1.5 MW/MVA. In stakeholder discussions during the joint RMS/COPS IDR Meter Protocol Requirement Threshold Workshops, there were concerns expressed regarding the elimination of the mandatory IDR Meter threshold. These concerns included: unknown and known impacts to Transmission and/or Distribution Service Providers (TSDPs) based upon their current Tariff concerning the application and invoicing of 4CP, unknown impacts to current 4CP Demand response volumes; and impacts to ERCOT’s Load forecasting processes unless these Loads were identified by a new profile assignment. Task Force participants indicated a desire that new profile codes not be introduced due to the cost impacts to their organizations resulting from IT development, testing, and implementation of multiple new Load Profiles when that may not be the best use of budget dollars. Additional concerns related to establishing a separate threshold for the evaluation of non-IDR Metered Premises and Advanced Metering System (AMS) Metered Premises. There was concern that language would be confusing to manage; recognition that the majority of Premises have AMS Meters and the subset of non-IDR Metered Premises are very limited; and understanding and willingness during IDR Required Threshold Workshop V to have any non-IDR with a Demand up to 1.5 MW/MVA settled on a Load Profile. 06/03/2015 Kathy Scott on behalf of the IDR Meter Protocol Requirement Threshold Workshop No 18.6.1 Withdrawn
NPRR756 Enhanced Ancillary Services This Nodal Protocol Revision Request (NPRR) replaces and aims to achieve most of the objectives and benefits of NPRR667, Ancillary Services Redesign, (also known as Future Ancillary Services (FAS)) while minimizing the cost impact on the market, particularly loads. This NPRR enhances the current Ancillary Services as follows: 1) Incorporate the equivalency ratio between Primary Frequency Response Service (PFRS) and Fast Frequency Response Service (FFRS) into the Responsive Reserve (RRS) procurement process while maintaining a single clearing price for RRS. Substitution of PFRS for FFRS would be on 1:1 ratio; 2) Remove the 50% limit on participation of Load Resources (providing Fast Frequency Response Service Provided by Sub-group 2 Resources (FFRS2)) that exists for RRS; 3) Introduce the Fast Frequency Response Service Provided by Sub-group 1 Resources (FFRS1) product to enable new technologies as an additional Resource type that can provide RRS; 4) Rate providers of frequency response based on their past performance; and 5) Continue to use RRS to meet both Frequency Response Obligation (FRO) of North American Electric Reliability Corporation (NERC) Reliability Standard BAL-003-1, Frequency Response and Frequency Bias Setting,and help restore frequency in a cost-effective, efficient manner. 02/03/2016 Freeport LNG Development, L.P. No 2.1, 2.2, 3.16, 3.17.1, 3.17.1 (new), 3.17.2 (new), 3.17.2, 3.18,,,,,, 4.5.1, 8.1,,,,, (new), (delete), (new), (new), (delete), (new), (new), (delete), and (new) Withdrawn
NPRR757 Distributed Generation Reporting Improvement This Nodal Protocol Revision Request (NPRR) provides ERCOT and ERCOT Market Participants with new, existing, and removed Distributed Generation (DG) facilities in a consolidated report on the Market Information System (MIS) Public Area. 02/12/2016 Shell Energy North America No 3.2.7 (new) Withdrawn
NPRR759 Segmentation of the Total New Capacity Estimate in the ERCOT CDR This Nodal Protocol Revision Request (NPRR) provides additional information in the Report on Capacity, Demand and Reserves in the ERCOT Region (“CDR”) regarding new planned Resources by splitting the lines “Planned Resources (not wind) with Signed IA, Air Permits and Water Rights, MW” and “Planned Non-Coastal Wind with Signed IA, Peak Average Capacity Contribution,” into separate lines to indicate which of the planned Resources have met all of the requirements of Planning Guide Section 6.9, Addition of Proposed Generation Resources to the Planning Models, and which have not. 02/29/2016 PLWG No Withdrawn
NPRR772 Clarification of Process for Transmission Outages Related to a Service Disconnection Request for a Generation Resource This Nodal Protocol Revision Request (NPRR) clarifies that the Planned Outage for Transmission Facilities process outlined in ERCOT Protocols Section 3.1, Outage Coordination, will be used for the scenario where an authorized disconnection of services is requested of a Transmission and/or Distribution Service Provider (TDSP) for a Generation Resource. This does not place any additional requirements on any Market Participant. 05/05/2016 Oncor No Withdrawn
NPRR777 ERCOT-directed Dispatch of Price-Responsive Distributed Generation This Nodal Protocol Revision Request (NPRR) defines a new term, Mapped Distribution Resource (MDR), and incorporates this new distributed Resource into applicable sections of the Protocols. 05/20/2016 Shell Energy North America No 2.1, 2.2, 3.2.5,, 3.10.7,,,,, Withdrawn
NPRR780 Revise North 345kV Hub Definition This Nodal Protocol Revision Request (NPRR) revises the North 345kV Hub (North 345) definition to remove Hub Bus VLYRN from the ERCOT Network Operations Model and the Congestion Revenue Right (CRR) Network Model. 05/31/2016 ERCOT No Withdrawn
NPRR807 Day-Ahead Market Price Correction This Nodal Protocol Revision Request (NPRR) clarifies that price corrections will only be performed for the Day-Ahead Market (DAM) in the case where awards are not affected by the error (e.g., a correction at a logical combined cycle resource node where the generator did not participate in DAM). When both prices and awards are affected by an error, a price correction would cause price/dispatch inconsistency, and there is no mechanism under the Protocols to make Market Participants whole to their DAM bids and offers. In these situations, ERCOT proposes that published prices and awards be final to provide market certainty, as Market Participants begin making Real-Time decisions based on DAM results prior to the opportunity for price correction to occur. 11/14/2016 ERCOT No 4.5.3 Withdrawn
NPRR811 Two Day Cure Period for Foreign Market Participant Guarantee Agreements This Nodal Protocol Revision Request (NPRR) changes the Foreign Market Participant Guarantee Agreement cure period from one to two days. 12/22/2016 Engie No 16.11.6 Withdrawn
NPRR814 Modify Black Start Procurement Cycle This Nodal Protocol Revision Request (NPRR) modifies the procurement cycle for Black Start Service (BSS) based on recommendations from an external review of the ERCOT black start program. Specifically, the NPRR increases the length of BSS contracts from the existing two years to five years and moves the due date for BSS bids from June 1st to August 1st. 01/23/2017 ERCOT No 3.14.2,, 22D Withdrawn
NPRR816 Clarification of Definitions of FIP and FOP This Nodal Protocol Revision Request (NPRR) generalizes the definitions of Fuel Index Price (FIP) and Fuel Oil Price (FOP) to more generic terminology making them nonvendor-specific. This generalization of terminology will allow ERCOT to choose alternative vendors for this service. 01/25/2017 ERCOT No 2.1 Withdrawn
NPRR832 Disallow PTP Obligation Bids and DAM Energy Bids that Sink at Private Use Network Settlement Points Without a Load Distribution Factor This Nodal Protocol Revision Request (NPRR) disallows Point To Point (PTP) Obligation bids and Day-Ahead Market (DAM) Energy Bids that sink at Private Use Network Settlement Points if the Day-Ahead Updated Network Model has not utilized a rational Load distribution factor for the Private Use Network Settlement Point. 05/10/2017 Luminant Yes,,, and Withdrawn
NPRR835 Removing the Capacity Limits from Resources Providing Fast Responding Regulation Service (FRRS) This Nodal Protocol Revision Request (NPRR) removes the MW capacity limits of Resources providing Fast Responding Regulation Service Up (FRRS-Up) and Fast Responding Regulation Service Down (FRRS-Down). 06/21/2017 E.ON No 3.16 Withdrawn
NPRR872 Modifying the SASM Shadow Price Cap This Nodal Protocol Revision Request (NPRR) modifies the Shadow Price cap for Ancillary Services in Supplemental Ancillary Service Markets (SASMs) to five times the awarded price in the Day-Ahead Market (DAM) up to a maximum of the Value Of Lost Load (VOLL) based on the amount of total Ancillary Services requirements that are being met. 04/17/2018 LCRA No Withdrawn
NPRR934 Advance Action Notice (AAN) and Clarify Process for Resource Outage Approval Withdrawal This Nodal Protocol Revision Request (NPRR) creates a new Operating Condition Notice (OCN) type called an Advance Action Notice (AAN) to communicate the need for Qualified Scheduling Entities (QSEs) and Transmission Service Providers (TSPs) to modify their plans to avoid the need for ERCOT to take future actions, including but not limited to withdrawing approval or acceptance of Planned Resource Outages, to address a potential Emergency Condition, and clarifies that an OCN is not an Emergency Condition level. This NPRR also clarifies the process for withdrawal of approved or accepted Planned Outages to avoid potential Emergency Conditions. 04/16/2019 ERCOT No 2.1,,,,, (new), and Withdrawn
NPRR938 Distribution Voltage Level Block Load Transfer (BLT) Compensation This Nodal Protocol Revision Request (NPRR) provides for the compensation of distribution voltage level Block Load Transfers (BLTs) that are instructed to switch from the ERCOT Control Area to a non-ERCOT Control area. 04/26/2019 Golden Spread Electric Cooperative No Withdrawn
NPRR946 Allow TDSPs to Use 814_28, Complete Un-executable Transactions for 814_03 Switch Transactions Involved In A Mass Transition Event This Nodal Protocol Revision Request (NPRR) allows the Transmission and/or Distribution Service Provider (TDSP) to cancel a 814_03 Switch transaction following the TDSP’s completion of a competitive switch or Move-In Request during a Mass Transition event instead of waiting for ERCOT to cancel the 814_03 Switch transaction. 05/20/2019 Texas SET WG No, Mass Transition Process Withdrawn
NPRR947 Clarification to Ancillary Service Supply Responsibility Definition and Improvements to Determining and Charging for Ancillary Service Failed Quantities This Nodal Protocol Revision Request (NPRR) refines the ERCOT process for determining when a Qualified Scheduling Entity (QSE) has failed on its Ancillary Service Supply Responsibility and, relatedly, ERCOT's process for charging QSEs for a failed Ancillary Service quantity. 05/28/2019 ERCOT No 2.1,, 6.4.1,, and 6.7.3 Withdrawn
NPRR966 Changes to Support Reactive Power Coordination Tool This Nodal Protocol Revision Request (NPRR) aligns Protocols with a new ERCOT project to implement a Reactive Power Coordination tool that produces an optimized reactive Dispatch schedule to be implemented by ERCOT Transmission Operators. This Dispatch schedule will be updated hourly and include the desired state of reactors and capacitors, desired tap positions of transformers with adjustable taps, and Voltage Set Points for synchronous condensers, static Volt-Ampere reactive (VAr) compensators, static synchronous compensators, and Generation Resources. 08/09/2019 ERCOT No 2.1,,,,, and Withdrawn
NPRR976 Provisions for Resource Entities to Act as a Virtual QSE or Emergency QSE This Nodal Protocol Revision Request (NPRR) allows a Resource Entity (RE) whose Qualified Scheduling Entity (QSE) can no longer act as a QSE or has been suspended or terminated, where the RE and the QSE are the same legal entity, to become a Virtual QSE or an Emergency QSE. In addition, this NPRR amends Protocol language addressing market participation by Emergency QSEs or Virtual QSEs to clarify that Emergency QSEs and Virtual QSEs for REs are not limited to being buyers in Energy, Capacity or Ancillary Service trades, or to submitting Day-Ahead Market (DAM) Energy Bids. 10/01/2019 ERCOT No 16.2.5,, Withdrawn
NPRR981 Day-Ahead Market Price Correction Process This Nodal Protocol Revision Request (NPRR) ensures awarded Day-Ahead Market (DAM) transaction quantities are final when they are posted and allows Market Participants impacted by an error to utilize the Alternative Dispute Resolution (ADR) process. 11/07/2019 Luminant No 4.5.1 and 4.5.3 Withdrawn
NPRR1017 Management of Congestion Revenue Rights (CRRs) and Resource Node Removals This Nodal Protocol Revision Request (NPRR) modifies the procedure for removal of Resource Nodes, whether due to Point of Interconnection (POI) changes, retirement of Resources, name changes, etc. and will allow Market Participants time to either move their hedge or exit their position over a six-month notice period by submitting bids and/or offers in subsequent auction(s). When the six-month notice period is concluded, ERCOT will initiate the removal of the Resource Node in question. If any Congestion Revenue Rights (CRRs) still exist at that Resource Node, they will be adjusted to a source/sink nearby. 03/25/2020 ERCOT No Withdrawn
NPRR1067 Market Entry Qualifications, Continued Participation Requirements, and Credit Risk Assessment This Nodal Protocol Revision Request (NPRR) strengthens ERCOT’s market entry qualification and continued participation requirements for ERCOT Counter-Parties i.e., Qualified Scheduling Entities (QSEs) and Congestion Revenue Right Account Holders (CRRAHs), classifies information provided in the background check and credit scoring process as Protected Information, modifies application forms for QSEs and CRRAHs, and adds a new background check fee to the Fee Schedule. This NPRR makes the following modifications to Section 16: (1) Creates a new background check process as a part of ERCOT’s review of current and prospective Counter-Parties; (2) Authorizes ERCOT to review current and prospective Counter-Parties to determine whether they pose an unreasonable credit risk to ERCOT; (3) Authorizes ERCOT to determine creditworthiness based on an ERCOT-calculated credit score, and allows ERCOT to require certain actions be taken by a Counter-Party to remain creditworthy. (4) Authorizes ERCOT to suspend a QSE or CRR Account Holder if it poses an unreasonable credit risk to; and (5) Authorizes ERCOT to terminate the registration of a Counter-Party if it is deemed an unreasonable credit risk that cannot be remedied. Further, this NPRR formalizes processes for ERCOT’s assessment of Counter-Party creditworthiness, and includes a credit scoring process to provide a consistent framework for review of creditworthiness. Credit scoring will incorporate assessment of both qualitative and quantitative (financial statement) information. In the event of a material change to creditworthiness, this NPRR also clarifies the means by which ERCOT may adjust Unsecured Credit Limits and/or Total Potential Exposure (TPE) to ensure that these adequately reflect the financial risk created by a Counter-Party’s activities under these Protocols. 01/27/2021 ERCOT No, 16.1.2, (new), 16.2.1, (new), 16.2.2,,,, 16.8.1, (new), 16.8.2,,,, 16.11, 16.11.1, (new) , (new), (new), 16.11.2 (new), 16.11.2, 16.11.3, 16.11.4,,,,,,, (delete), 16.11.5, 16.11.6,,,,,,,,,,,,,,,, 16.11.7, 16.11.8, Section 23 Form A Section 23 Form G, ERCOT Fee Schedule Withdrawn
NPRR1076 Deadlines for Alternative Dispute Resolution (ADR) Requests Related to Winter Storm Uri This Nodal Protocol Revision Request (NPRR) provides additional time to Market Participants to initiate an Alternative Dispute Resolution (ADR) and for ERCOT to process any ADRs related to Winter Storm Uri. The deadline for initiating an ADR for disputes from February 14 through February 19, 2021 will be postponed to February 28, 2022. 04/28/2021 Luminant Generation Pending 20.1 and 20.2 Withdrawn
NPRR1089 Requiring Highest-Ranking Representative, Official, or Officer of a Resource Entity to Execute Weatherization and Natural Gas Declarations This Nodal Protocol Revision Request (NPRR) requires each Resource Entity that owns or controls a Generation Resource to submit a declaration by its highest-ranking representative, official, or officer with binding authority affirming that the Resource Entity has completed summer and winter weatherization preparations and any required coordination with its gas pipeline operator(s). 07/28/2021 ERCOT No 3.21, 3.21.1, Section 22 Attachment K, and Section 22 Attachment O Withdrawn
NPRR1146 Credit Changes to Appropriately Reflect TAO Exposure This Nodal Protocol Revision Request (NPRR) makes changes to credit provisions related to Trading Activity Only (TAO) Qualified Scheduling Entities (QSEs) that appropriately reflect their credit exposure. Specific changes include: eliminating the Unbilled Real-Time Amount (URTA) for TAO QSEs; allowing TAO QSEs to request an M1 of about two days by agreeing to certain conditions including suspending Real-Time Market activities upon ERCOT notice (Day-Ahead Market activity is systematically restricted to Available Credit Limit); clarifying that a TAO QSE is a QSE that does not represent either Load Serving Entities (LSEs) or Resource Entities, thus ensuring that a QSE engaging exclusively in DC Tie exports and other trading activities will be classified as a TAO QSE; and determining Counter-Party’s Total Potential Exposure (TPE) by adding the separate credit calculations for the Counter-Party’s (i) QSEs that represent LSEs or Resource Entities, (ii) TAO QSEs that do not represent LSEs or Resource Entities, and (iii) Congestion Revenue Right (CRR) Account Holders. 08/10/2022 Rainbow Energy Marketing Corporation No,, and Withdrawn
NPRR1162 Single Agent Designation for a QSE and its Sub-QSEs for Voice Communications over the ERCOT WAN This Nodal Protocol Revision Request (NPRR) amends Section 16.2.1 to require each Qualified Scheduling Entity (QSE) and its Subordinate QSEs to have only one primary and one alternate voice circuit for the purpose of operational voice communications with ERCOT over the ERCOT Wide Area Network (WAN), including, without limitation, receiving and discussing Dispatch Instructions, and amends Section 23, Form F, to reflect the changes made in Section 16.2.1. 02/10/2023 ERCOT No 16.2.1 and 23F Withdrawn
NPRR1203 Implementation of Dispatchable Reliability Reserve Service This Nodal Protocol Revision Request (NPRR) establishes DRRS within the suite of Ancillary Services procured by ERCOT. DRRS is created in alignment with the requirements of House Bill No. 1500 (HB1500) approved by the 88th Texas Legislature earlier this year. To meet the delivery requirements of DRRS, established in HB1500 with an implementation deadline of December 1, 2024, this NPRR makes DRRS a sub-category of the existing Non-Spinning Reserve (Non-Spin) product. 09/27/2023 ERCOT Yes 2.1, 2.2, 3.9.1, 3.16, 3.17.3,,, 5.5.2,,, 6.7.5,, and Withdrawn
NPRR1209 Board Priority – State Of Charge Ancillary Service Failed Quantity Allocations under NPRR1149 This NPRR makes updates to language introduced by NPRR1149, Implementation of Systematic Ancillary Service Failed Quantity Charges, by providing the equations and the priority order to be used to consider Energy Storage Resource (ESR) Real-Time State of Charge (SOC) data when determining Ancillary Service Failed Quantity Charges for a Qualified Scheduling Entity (QSE) after each Operating Day. Under this NPRR, SOC insufficiencies will be reflected in adjustments to the telemetered Ancillary Service Resource Responsibilities for the ESR. These adjusted values will then be used in Ancillary Service failed quantity calculations for a QSE’s portfolio when performing the after-the-fact analysis. The adjusted Ancillary Service Resource Responsibilities for a QSE’s ESRs due to SOC insufficiency will be calculated separately for ‘Up’ and ‘Down’ Ancillary Services by the Energy Management System (EMS). These calculations will be used by the Market Management System (MMS) to allocate failed quantity charges at the QSE level for individual Ancillary Services. 11/08/2023 ERCOT Yes 6.7.3 Withdrawn