System Change Requests (SCRs)
# Title Description Date Posted Sponsor Urgent Protocol Sections Current Status Next Group Next Step
SCR700 Date Changes on Move-Ins

Allow a DTM ( date time reference) segment to be added to the 814_13 that will allow the TDSP to respond to a date change request with a different date than the requested date. The 814_13 will flow from the TDSP to ERCOT and ERCOT will forward the information to the CR.

01/25/2002  Approved
SCR701 814_05 to CR with reject Status

ERCOT will forward 814_04 ASI U (reject status) to the CR in the 814_05 ASI U (reject status)

01/25/2002  Reliant Energy Approved
SCR702 Ad-Hoc Historical Usage Response Flow

ERCOT will stop creating the 814_27 response. The TDSP will create the 814_27 response and forward to ERCOT and ERCOT will forward to the CR.

01/25/2002  Reliant Energy Approved
SCR703 ERCOT Purge of Move-In when permit never received

ERCOT system to recognize an 814_28 notification from the TDSP that a permit is require. If the switch is still pending 20 days later, then use the 814_08 to cancel the move-in. Use the permit not removed notification segment in the 814_08. Track the cancellations for this reason separate from switches that are timed out.

02/04/2002  ERCOT Approved
SCR704 Stacked Move-Ins

Enhance the ERCOT Web Portal to include the viewing of pending move-in and move-out transactions and the future effective dates.

Modify the use of the "Not First In" reject reason on the move-in transactions. Not First In should only be valid on a Move In that is requested earlier than the pending Move In date. If the Requested Move In date is requested for LATER than the pending Move In date, the Move In should be allowed to pass and schedule.

This change allows for sequential stacking of Move Ins.

01/25/2002  Reliant Energy Approved
SCR715 814_25 to CR with reject Status

ERCOT will forward 814_25 ASI U (reject status) to the CR in the 814_25 ASI U (reject status). The ASI is a segment in the EDI transaction. The ASI segment identifies if the transaction is an accept â??WQâ?? or a reject â??Uâ??.

The problem and resolution follows the same logic and methodology as SCR 701. 701 deals with Move Ins, this SCR deals with Move Outs, but has the same functionality.

Basically, there is no way to communicate to the CR if the TDSP rejects the Move Out request (814_24) from ERCOT.

03/15/2002  Reliant Energy Approved
SCR716 MC TDSP Consolidated Billing Option

This SCR would require ERCOT to pass a DTM~649 on an 867_03.

04/04/2002  ERCOT Approved
SCR717 FTP Replacement Project â?? Phase 2

Add GISB EDM (version 1.6) functionality to the existing Message Broker system implemented during phase 1 of the FTP Replacement project.

04/22/2002  ERCOT Approved
SCR718 Real Time Interzonal Congestion Monitoring

New screen on the ERCOT Portal with actual real-time flow, flow limits, and MVARs for all ERCOT-monitored Interzonal elements that comprise the four CSCs and their respective CREs. Further, the screen is to be dynamic so as to allow the ERCOT Operators to indicate the specific element(s) (CSC, CRE, or other) to which the ERCOT Operators are currently constraining. The screen should be updated as often as necessary to provide market participants with relevant data regarding lack of, imminent or actual Interzonal congestion. The data could presumably be culled from the â??Real-Time Transmission Constraints Limits Screenâ?? currently used by ERCOT Operators. All CSCs and their related CREs should be constantly displayed on the new screen, with the element to which ERCOT is constraining identified by a different color. No local congestion data is to be communicated to market participants via the proposed screen.

05/14/2002  Dynegy Power Marketing, Inc., Reliant Energy Inc. Approved
SCR719 Transmission Clearance Times

Add scheduled beginning and ending times to posted proposed and approved transmission clearances. The present postings include only the beginning and ending dates. Clearances are posted at the following two addresses: http://mospublic.ercot.com/ercot/jsp/transmission_outages.jsphttp://mospublic.ercot.com/ercot/jsp/trans_outages_received.jsp

05/24/2002  TXU Energy Trading Approved
SCR720 Forecasted Net Zonal Energy and Actual Zonal Generation

  • Forecasted Net Zonal Energy - information will be available for each 15-minute interval of the upcoming Operating Period, one hour prior to the start of each Operating Period (or on whatever timeline ERCOT runs its short-term load forecasting routine to update its forecasted load). The information should be based on ERCOTâ??s Forecasted Zonal Aggregate Load and ERCOTâ??s trend of aggregate zonal generation. Separately, the Working Group is also requesting that ERCOT make available a written description of the methodology, including distribution factors, used in converting from Load Areas to Zones.
  • Actual Zonal Generation - This information will be available in real-time on the same timeline as other information regarding frequency control that is already being provided by ERCOT (i.e., every few seconds). This information will be based on SCADA data.

06/11/2002  Reliant Approved
SCR721 Market Information Notification by XML

  • CSC Shadow Price â?? ERCOT to make available via XML notification (push) at the same time ERCOT determines to deploy zonal balancing energy to mitigate zonal congestion. If more than one CSC is constrained in a 15-minute interval, the shadow price for each constrained CSC will be provided. Currently available on portal and accessible day or so later via spreadsheet download.
  • CSC Zonal Limit (OC1) - This value, for each CSC, will also be available via XML query in real-time, every 15-minutes, for the relevant interval (currently the interval ending 45 minutes later) whether or not the CSC is constrained. This value may not be the same as the CSC Monitored Limit. Currently available on portal and accessible day or so later via spreadsheet download.
  • Forecasted CSC Loading (Sched Impacts) - This information will be available via XML query in real-time, every 15 minutes, for the relevant future interval (currently the interval ending 45 minutes later), whether or not there is, or is forecasted to be, zonal congestion. ERCOT labels this information as â??MW loadingâ??. Actually, the information is better described as â??MW Scheduled Impactsâ?? since it does not reflect the forecasted or actual CSC loading. ERCOT may re-label this item accordingly. Currently available on portal and accessible day or so later via spreadsheet download.
  • Zonal Portfolio BES Deployment Quantities (Both Step 1 and Category 1 Deployments) - Both of these items will be available via XML query in real-time, every 15 minutes, for the relevant future interval (currently the interval ending 45 minutes later), whether or not there is, or forecasted to be, zonal congestion. The Step 1 quantities will correspond to the zonal MCPEs that are currently provided by ERCOT in each 15-minute interval.
  • Scheduled Zonal Generation - Day-Ahead scheduled generation aggregated by zone, and made available at approximately 11am the day prior to the Operating Day and updated hourly throughout the Adjustment Period. This information will be available via XML query.
  • Total System Incremental (up) Regulation Deployments - The 15-minute integral of this information will be available via XML query immediately following each 15-minute interval.
  • Total System Decremental (down) Regulation Deployments - The 15-minute integral of this information will be available via XML query immediately following each 15-minute interval.
  • Forecasted and Historical Load by Load Areas - This information will be available via XML query for each 15-minute interval of the upcoming Operating Period, one hour prior to the start of each Operating Period (or on whatever timeline ERCOT runs its short-term load forecasting routine to update its forecasted load). The forecasted information should be based on ERCOT's own forecast of aggregate zonal loads, irrespective of QSE schedules. This is information in addition to the â??Short Term Load Forecastâ??, by zone.
  • Forecasted Net Zonal Energy â?? This information will be available via XML query for each 15-minute interval of the upcoming Operating Period, one hour prior to the start of each Operating Period (or on whatever timeline ERCOT runs its short-term load forecasting routine to update its forecasted load). The information should be based on ERCOTâ??s Forecasted Zonal Aggregate Load and ERCOTâ??s trend of actual aggregate zonal generation. The Working Group is also requesting that ERCOT make available the methodology, including distribution factors, used in converting from Load Areas to Zones.
  • Actual Zonal Generation - This information will be available via XML query in real-time on the same timeline as other information regarding frequency control that is already being provided by ERCOT (i.e., every few seconds). This information will be based on SCADA data.
  • Zonally Aggregated BES Bid Curves â?? For those 15-minute settlement intervals in which ERCOT is managing CSC congestion (i.e., intervals in which there is at least one non-zero CSC shadow price due to CSC congestion management), ERCOT will make available, via XML query within 15 days after the operating day, zonal aggregates of up balancing energy service (UBES) bid prices and quantities for each settlement interval and zonal aggregates of down balancing energy service (DBES) bid prices and quantities for each settlement interval.

06/17/2002  Reliant Approved
SCR722 Aggregate Zonal Unit-Specific Incremental (up) Deployments by Category, including zonal aggregate OOM Deployments, and Aggregate Zonal Unit-Specific Decremental (down) Deployments by Category, including zonal aggregate OOM Deployments.

  • Aggregate Zonal Unit-Specific Incremental (up) Deployments by Category, including zonal aggregate OOM deployments. This information will be available in real-time via portal posting and XML query, every 15 minutes, for the relevant future interval (currently the interval ending 35 minutes later), whether or not there is, or forecasted to be, zonal or local congestion.
  • Aggregate Zonal Unit-Specific Decremental (down) Deployments by Category, including zonal aggregate OOM deployments. This information will be provided in real-time via portal posting and XML query, every 15 minutes, for the relevant future interval (currently the interval ending 35 minutes later), whether or not there is, or forecasted to be, zonal or local congestion.

06/17/2002  Reliant Approved
SCR723 Remote Access to ERCOT Network Applications

Add hardware, software, and required license to enable Transmission Operators to access the ERCOT network analysis software remotely through the ERCOT WAN. Implement secure access to the network applications that will insure that only authorized Transmission Operators will have access.

08/23/2002  Oncor Approved
SCR724 Left-In-Hot CSV Process

Modify the existing Affiliate REP (AREP) process to meet the needs of the â??LEFT-IN-HOTâ?? process.

  1. TDSP submits a CSV file to ERCOT.
  2. ERCOT performs validation against data in Siebel/Lodestar
  3. Rejections are returned to the TDSP with specific error remarks
  4. Valid submissions change the ESI ID to active with the Affiliate REP

09/16/2002  ERCOT Yes Approved
SCR725 ERCOT Settlement Estimation Transparency

With each Settlement Statement, ERCOT must provide information regarding the Load estimation required because of missing metered volumes. Information for ERCOT-wide estimation, represented REPs estimation, and their specific QSEs estimation.

09/17/2002  TXU Approved
SCR726 Schedule Mismatch Notification and Query Usability

Modify Mismatch Notification XML message and â??Query for Schedule Mismatch Messagesâ?? to include three additional fields:

  • Resource / Obligation (flag to represent type)
  • Zone
  • MW
11/14/2002  TXU Approved
SCR727 ESI-ID Service History & Usage Extracts

Service History Extract
Within a REPs ESI ID Service History Extract, ERCOT would provide information regarding all the ESI IDs assigned to that REP, their service history with the current REP, their Load Profile and other characteristics necessary for the REP to be able to estimate load for settlement. This extract would also allow the TDSPs to validate the EDI documentation previously sent to ERCOT. The following is an example of the data elements that are required:

ESI-ID INFORMATION (IDR & Non-IDR customers)
CUSTOMER_ID
ELECTRIC_SERVICE_IDENTIFIER
START_TIME
STOP_TIME
TRANSACTION_DATE

ESIID_SERVICE_HISTORY (IDR & Non-IDR customers)
CUSTOMER__ID DISPATCHFL
SERVICECODE METER_READER_CODE
START_TIME T_AND_D_PROVIDER_CODE
STOP_TIME REGIONCODE
RETAIL_PROVIDER_CODE DISPATCHASSETCODE
STATION_CODE STATUS
PROFILE_CLASS_CODE ZIP
LOSS_CODE POWER_GENERATOR_CODE
TRANSACTION_DATE DISPATCH_TYPE

Usage Extracts
ERCOT will make available ESI ID Usage Extracts to provide REPs and TDSPs information to validate the actual usage ERCOT has received from TDSPs and uses for settlement. Within an Initial ESI-ID Usage Extract for a REP, ERCOT must provide all usage information loaded into ERCOTâ??s Settlement system for ESI IDs assigned to the REP from the date of the request through the earliest Trade Date requiring True-Up Settlement. A daily REP ESI ID Usage Extract would provide the usage information received by ERCOT and loaded into its Settlement system for a day. This extract would be used by the REP or TDSP to append to the REP Initial Usage Extract in order to compile a complete record of usage data existing in ERCOTâ??s Settlement system. The following is an example of the data elements that are required:

ESIID_USAGE (Non-IDR Meter Information)
CUSTOMER_ID TOTAL
START_TIME ON_PEAK
STOP_TIME OFF_PEAK
BILLING_MONTH MDPK
METER_READ_STATUS SPK
USAGE_DAILY_AVERAGE GLOBPROCID
TRANSACTION_DATE TIMESTAMP
METER_TYPE

IDR_USAGE_HEADER (IDR Meter Information)
INTERVAL_DATA_ID DSTPARTICIPANT
CUSTOMER_ID ORIGIN (Indicates Meter or Profiled)
RECORDER ACCEPTREJECTSTATUS
MARKET_INTERVAL DESCRIPTOR
START_TIME TIMESTAMP
STOP_TIME COUNT
SECONDS_PER_INTERVAL TRANSACTION_DATE
MEASUREMENT_UNITS_CODE

IDR_USAGE_DATA (IDR Meter Information)
INTERVAL_DATA_ID
TRANSACTION_DATE
TRADE_DATE
15 MINUTE INTERVAL READ VALUE
(Meter Read value would show estimated and actual values)

12/13/2002  Reliant Energy Approved
SCR728 Display ERCOT Deployments

Display ERCOT Total Aggregated Balancing Energy Deployment, Total Aggregated Responsive Deployment, Total Aggregated Non-Spin Deployment, ERCOT SCE and ERCOT Responsive Reserve on the ERCOT Real-Time public web.

03/04/2003  TXU Energy Approved
SCR729 Generating Unit Information

New screen should be made available on the ERCOT Portal, which indicates current and projected unit generation information. This should include Economic generation, as well as Out Of Merit (OOM) and any other non-economic generation, scheduled for the current and next dayâ??s operations. In addition, this information should also be made available in ASCII format for downloading into transmission application study programs.

03/18/2003  Oncor - Transmission Grid Management Approved
SCR730 Market Operations Test Environment for Wholesale Market Participants

The Market Operations Test Environment will enable interface and business testing for the market. This system change will allow both ERCOT and Market Participants to run simulations concurrently.

07/10/2003  TXU Yes Approved
SCR731 Automate the Implementation of MCSM

Automate the process for adjusting the Market Clearing Price of Energy as directed in Section 6.9.5.1, Balancing Energy Clearing Price, item (2) and subject the adjusted clearing price to the same requirements as any unadjusted clearing price (i.e. post the adjusted price pursuant to Section 4.6, Operating Period Process, item (5) and Section 6.7.1.1, Creation of the Balancing Energy Bid Stack, item (5))

11/17/2003  Reliant Resources Approved
SCR732 Enhancements to FasTrak Process

FasTrak is the retail transaction issue resolution tool. However, the system currently in place does not include the capability to track issues by variables such as ESI ID or TDSP, and does not allow determination of issue aging. In addition, the tool cannot be queried and interfacing with the tool is somewhat cumbersome. The FasTrak tool needs to be made more user friendly and enhanced with features that will allow issues to be better tracked and manipulated by Market Participants for purposes of better managing the retail transaction issue resolution process.

11/25/2003  Green Mountain Energy Company Approved
SCR733 Zonal Instructed Deviation (ZID) and Offline calculations

  1. Modify ERCOTâ??s Settlements and Billing Extract to keep the integrity of a QSEâ??s Real Time operational data such as deployments to the QSE from ERCOT.
  2. Include bill determinants that are used in calculating offline adjustments.

03/01/2004  CenterPoint Energy Approved
SCR734 CSA Report for CRs

Allow CRâ??s the ability to request an extract of CSA information for their DUNS. Output the following fields:

  • ESI ID
  • CR DUNS Number
  • TDSP DUNS Number
  • Relationship Type (CSA)
  • Status
  • Service Begin Date
  • Service End Date
  • Created
  • Last Updated
  • Comments

Incorporate the following attributes:

  • Ability to request on-demand from the Portal
  • Limit output to the DUNS of the requestor (as defined by their digital certificate)
  • Post output file in CSV format to market participant folder in Report Explorer

Require requestor to input the following parameters:

  • Start and Stop dates
  • â??Activeâ??, â??Inactiveâ?? or all Status values

05/03/2004  TXU Energy Approved
SCR735 RRS Calculation for Hydro Units in Synchronous Condenser Mode

The ERCOT market clearing engine, which performs Resource Plan Validation and the Hour-Ahead Study, and clears the Real Time Balancing Energy Market, should be modified to allocate Responsive Reserve Service according to the ERCOT Operating Guides to hydro units operating in synchronous condenser mode.

05/27/2004  Lower Colorado River Authority Approved
SCR736 TML â??  ESIID TXN Portal Flag

Append a data Flag of â??Pâ?? to the Transaction Type number to indicate when a displayed transaction was generated and transmitted through the Texas Market Link portal by Market Participants, rather than being generated by Market Participantâ??s system and transmitted in the Market via GISB.

07/08/2004  TXU Portfolio Management Approved
SCR737 Estimated Meter Read Data

Create a calendar month, summary report to be presented at RMS that will provide Market Participants with estimated meter reading information broken-down by TDSP territory and indicating customer class. This report will also indicate the degree to which meter reads occur consecutively across two or more months and the degree to which estimates may straddle Move-Ins and Move-In/Forced Outs.

This report will be run on the first day of each month and will include the following summary level detail:

  • TDSP Duns
  • Premise Type (Residential, Small Non-Residential)
  • Load Profile
  • Number of Consecutive Months â?? Interval of 3 or more and 6 or more months
  • By Business Process Type (All MVIs and MVI/Forced Outs)
  • Count Total per Business Process Type
  • Summarized Total for All

Italicized items above are secondary requirements and could be removed if too costly.

08/02/2004  TXU Electric Delivery Approved
SCR738 Enhancements to FasTrak Tools

FasTrak is the retail transaction issue resolution tool. However, the system currently in place does not include the capability to track issues by variables such as ESI ID or TDSP, and does not allow determination of issue aging. In addition, the tool cannot be queried and interfacing with the tool is somewhat cumbersome. The FasTrak tool needs to be made more user friendly and enhanced with features that will allow issues to be better tracked and manipulated by Market Participants for purposes of better managing the retail transaction issue resolution process.

08/10/2004  TXU Energy Approved
SCR739 Pending Load Loss Report for CRs

Output the following fields:

  • ESI ID
  • CR DUNS Number
  • TDSP DUNS Number
  • Status Reason
  • Service Period End Date

Incorporate the following attributes:

  • Limit output to the DUNS of the losing CR (where the gaining CR is not the losing CR)
  • Post output file in CSV format to market participant folder in Report Explorer

08/13/2004  TXU Energy Approved
SCR740 Enhancements to SCR727 Extracts

Suggested modifications include, but are not limited to:

  • Providing usage to CRs for backdated LSE Relationship Changes
  • Including a file name or number in order to identify the order in which SCR727 files should be loaded by the MP
  • Auditing capabilities to allow MPs the function to confirm the accuracy of their extracts
  • Ability to link a dB change back to the source of the change (i.e. FasTrak issue, batch processing)
08/13/2004  Direct Energy Approved
SCR741 Multi-Day Scheduling Capability

The essence of the request is for ERCOT to set up a data repository that can receive balanced schedules for future operating days for which a market has not yet been opened. As ERCOT opens markets each day the relevant data from the repository would be pulled into ERCOT’s EMMS system.

Basic requirements:

  • Allow submission of balanced schedules up to 7 days prior to operating day
  • Clearing should remain limited to the next operating day (as we do currently), unless ERCOT needs to clear a two Day Ahead market for reliability reasons.
  • The expectation is that this data is not validated until it is pulled from the repository into the EMMS system.
08/20/2004  Entergy Solutions No Rejected
SCR742 Automated Retail Transaction Verification

A list of functional requirements has been developed by the Texas Test Plan Team (TTPT) for tools that support the market in testing retail transactions in an automated fashion. These requirements have been broken into 3 functional groups.

  • Transaction Validation
  • File Transfer Protocol Requirements
  • Transaction Samples
03/01/2005  Approved
SCR743 QSE Dispute Extract QSE Dispute Extract:
  1. Dispute ID
  2. Trade Date
  3. Statement ID (Stmt ID 1 â?? 12)
  4. Transaction Date & Time Stamp (Published Date of Extract)
  5. QSE Name
  6. QSE Contact Name
  7. QSE Submission Date (Transaction Date, Time Stamp)
  8. Dispute Status (Not Started, Open, Closed, Withdrawn, Rejected)
  9. Dispute Status Assignment Date
  10. Dispute Resolution (Granted, Granted w/ Exceptions, Denied)
  11. Dispute Resolution Assignment Date
  12. Dispute Type
  13. Dispute Sub Type
  14. Dispute Charge Type
  15. Start Interval
  16. End Interval
  17. Dispute Amount
  18. Resolution Amount
  19. Short Description
  20. Long Description
  21. Attachment Submitted (Y/N)
  22. ERCOT Resolution Comment
05/02/2005  TXU Energy Approved
SCR744 Outage Scheduler View Only Access

Add view only access functionality to authority options for the User Security Administrator (USA)

05/02/2005  Reliant Energy Approved
SCR745 Retail Market Outage Evaluation and Resolution

In an effort to promote system reliability for the Retail Market by significantly reducing ERCOT System Outages, a technical resolution is needed. To ensure the technical recommendations in this SCR sufficiently accomplish the intention, ERCOT IT should produced a full evaluation of ERCOT systems, and a full evaluation of internal processes associated with those systems such that Retail Market Participants will be able to select the best cost-based solution able to reduce and/or eliminate ERCOT system outages.

05/12/2005  TXU Electric Delivery Yes Approved
SCR746 Dynamic Rating Data to TSP Using ICCP Link

Provide transmission element dynamic rating data used by ERCOT to the TSP of the facility through the ICCP link.

06/29/2005  City of Garland Approved
SCR747 Removal of Price Administration for Zonal Congestion

Eliminate violation on Commercially Significant Constraints (CSCs) as a trigger for Price Administration in the Real Time Balancing Market Clearing Engine (also known as Scheduling, Pricing and Dispatching (SPD)). Instead of triggering Price Administration when a CSC is violated, SPD should allow the Shadow Price to be equal to the Penalty Factor for OC1 congestion, currently $2,500.

08/01/2005  Constellation Energy Commodities Group No Approved
SCR748 Website Enhancements for ERCOT Outage Notifications To add functionality on the ERCOT website for: Calendar of dates/times for planned outages affecting retail; Location on site indicating outage in progress â?? for unplanned; Log of outages; Ability to contact ERCOT when a MP discovers an ERCOT unplanned outage in progress. 03/16/2006  Texas Data Transport Working Group No Approved
SCR749 MarkeTrakEnhancements

The MarkeTrak tool is a web based database application used to track, manage, and store data utilized by ERCOT and the Market Participants (MPs). This tool is the supported method to track ERCOT Retail market issue management and data discrepancies in the market. 

 

To add functionality on the MarkeTrak Issue Resolution Tool for:

o       Increased usability

o       Improved workflow of MarkeTrak Issues

o       Increased reporting functionality

05/17/2007  Jennifer Garcia on behalf of MMWG No NA Approved
SCR750 Upgrade ERCOT’s Systems so Users Can Upgrade to Internet Explorer 7.0 and Beyond This System Change Request (SCR) proposes an upgrade to ERCOT’s Systems so users are able to use Internet Explorer 7.0 and future versions of Internet Explorer to interact with ERCOT. 09/26/2008  CenterPoint Energy No Not Applicable. Withdrawn RMS
SCR751 Nodal – Power Balance Shadow Price Cap Curve for SCED (formerly titled “Nodal – Shadow Price Cap”) This System Change Request (SCR) will convert the power balance penalty from a fixed value to a curve that is applied on a MW basis. 10/30/2008  Marguerite Wagner on behalf of the Congestion Management Working Group (CMWG) Yes Not Applicable. Approved
SCR752 Nodal: Allow QSEs to Enter Outages for All Assets The ABB security software needs to accommodate a Qualified Scheduling Entity (QSE) security role that allows the QSE to enter Outage information for all of its Transmission Elements.  To enter Outage information for Transmission Elements, the current ABB software would allow the QSE to view all transmission planning information.  This is too broad and violates rules already in place. 11/04/2008  The Transition Plan Task Force (TPTF) No Not applicable. Withdrawn
SCR753 Transmission Outage Notice Detail Enhancements This System Change Request (SCR) proposes to enhance ERCOT’s publishing of transmission Outage detail by requesting the publication of additional data which exists in the ERCOT database. 11/21/2008  Reliant Energy No None. Approved
SCR754 Replace Email Delivery of WGRPP Forecasts (formerly “WGRPP Forecasts Posted on Zonal TML”)

In accordance with Protocol Section 4.4.15, QSE Resource Plans, ERCOT shall produce renewable production potential forecasts for Wind-powered Generation Resources (WGRs) to be used as the planned operating level in the Resource Plan during Replacement Reserve Service (RPRS) procurements.

Upon approval of PRR763, Use of WGRPP as Planned Operating Level in Day-Ahead Resource Plan for WGRs, ERCOT implemented the WGR Production Potential (WGRPP) forecast without delay by having the WGRPP forecasting service email forecasts directly to each WGR Qualified Scheduling Entity (QSE).  The email process proved to cause unacceptable delivery delays and errors for QSEs.

This System Change Request (SCR) proposes to provide a secure and programmatic means to supply the WGR QSEs with their forecasts by:

o       Provide WGR QSEs their forecasts through the zonal Extensible Markup Language (XML) Market User Interface (MUI).

o       A WGR QSE can obtain its current forecasts by submitting a query through the zonal XML MUI. 

o       This will be through a query as specified in the "ERCOT Participant Interface:  XML" document.

o       Past forecasts will not be available after each hour.

o       ERCOT may restrict the frequency of these queries to protect system availability.

12/23/2008  ERCOT Yes N/A Approved
SCR755 ERCOT.com Website Enhancements This System Change Request (SCR) requests for ERCOT to apply needed improvements to the ERCOT website identified as a result of ERCOT’s request to the Technical Advisory Committee (TAC) and other Subcommittees to help identify desired improvements to the ERCOT website. 02/25/2009  CCWG No Approved Parking Deck - Impact Analysis and budget review
SCR756 Enhancements to the MarkeTrak Application

The MarkeTrak tool is a web based database application used to track and manage issues identified by Market Participants and ERCOT.  This tool is the supported method to resolve retail transaction problems and data discrepancies.

This System Change Request (SCR) will add functionality to the MarkeTrak Issue Resolution Tool to:

  • Improve and standardize Market Participant administration functions;
  • Implement ERCOT validations requested by the MarkeTrak Task Force (MTTF); and
  • Redesign the workflows to leverage potential vendor upgrades to the MarkeTrak application.
05/06/2009  Monica Jones, Carolyn Reed and Jonathan Landry on behalf of the MarketTrak Task Force No Not applicable. Approved
SCR757 Real-Time Wind Production By Zone On the Real-Time data page, ERCOT should begin posting the amount of wind output by Congestion management zone.  This would be in addition to the total wind output for the entire ERCOT System that is currently being posted. 09/08/2009  AEPEnergy Partners No NA Withdrawn
SCR758 Enhancements to the Proposed Transmission Outage Report This System Change Request (SCR) proposes to continue to enhance ERCOT’s publishing of transmission Outage details as started with SCR753, Transmission Outage Notice Detail Enhancements, by requesting the publication of additional data which exists in the ERCOT database. 12/07/2009  Mark Garrrett on behalf of Direct Energy No Not applicable. Approved
SCR759 acLineSegment Name Length Increase in Information Model Manager This System Change Request (SCR) proposes to increase the allowable character size of the acLineSegment type under the Line Equipment Container from two to 14 in the Information Model Manager. 05/27/2010  SSWG No N/A Approved Parking Deck - Impact Analysis and budget review
SCR760 Recommended Changes Needed for Information Model Manager and Topology Processor for Planning Models This System Change Request (SCR) proposes changes to the Information Model Manager and Topology Processor to fix a number of deficiencies with the proposed Annual Planning Model creation process. 11/04/2010  Wesley Woitt on behalf of the SSWG Yes Changes to the Information Model Manager and Topology Processor Approved
SCR761 Provide Price Republication Notifications via API and Provide Price Corrections via XML

This System Change Request (SCR) requires ERCOT to:

  • Provide Application Programmatic Interface (API) notification of all republished corrected prices; and
  • Always publish all price corrections in Extensible Markup Language (XML) format using the same XML Schema Definition (XSD) that it is using for the regular price publication.
02/23/2011  DTE Energy No Approved
SCR762 Enable a Single Step Cancel/Resubmit of Trades This System Change Request (SCR) modifies the Market Management System (MMS) such that submission of a trade that has already been confirmed causes the confirmed trade to be overwritten by the new submission and marked as unconfirmed. 03/14/2011  ERCOT No NA Approved
SCR763 Modify COP Validation Rule for RRS This System Change Request (SCR) modifies the existing Current Operating Plan (COP) validation to use the highest Emergency Ramp Rate value from the registered Emergency Ramp Rate curve as an input to the COP validation check of Responsive Reserve (RRS) responsibility.     03/14/2011  ERCOT No Approved
SCR764 Public Access to Select MIS Dashboards

This System Change Request (SCR) proposes system changes to allow public access to a graphical view of non-confidential system conditions and pricing information for the following MIS Dashboards:

  • Load Forecast vs. Actual
  • LMP Contour Map
  • SCED Up/Down
This SCR corresponds to system changes proposed by Nodal Protocol Revision Request (NPRR) 329, Security Classification Changes for Extracts/Reports.
04/07/2011  Jackie Ashbaugh on behalf of the MIS User Group Yes Approved
SCR765 Public Aggregated Wind Dashboard

This SCR proposes the development of a new wind aggregated dashboard available to the public that displays the following on both the system-wide and regional level in graphical form:  

  • Aggregate Wind-powered Generation Resource (WGR) Power Output
  • Aggregate Short-term Wind Power Forecast (STWPF), from both the current and Day-Ahead
  • Aggregate Wind-powered Generation Resource Production Potential (WGRPP), from both the current and Day-Ahead
  •  Aggregate Current Operating Plan (COP) High Sustained Limits (HSLs) for On-line WGRs, from both the current and Day-Ahead

System-wide and regional WGR output data would also be displayed on the dashboard.  These values will update with each Security-Constrained Economic Dispatch (SCED) run and represent a current snapshot of the aggregate WGR output.

04/18/2011  Jackie Ashbaugh on behalf of the MIS Users Group Yes Approved
SCR766 Load Zone and Hub LMPs Distributed by ICCP (formerly “Load Zone Price Distributed by ICCP”)

This System Change Request (SCR) allows the price data to be transferred to the Energy Management System (EMS) for distribution over Inter-Control Center Communications Protocol (ICCP) links, as soon as the five-minute Load Zone and Hub prices are calculated in Real-Time.

04/18/2011  Alice Jackson for the Demand Side Working Group (DSWG) on behalf of WMS No NA Approved
SCR767 Non-Spin Deployment Criteria This System Change Request (SCR) adds the ability to deploy all On-Line Non-Spinning Reserve (Non-Spin). 11/02/2011  ERCOT No Withdrawn
SCR768 Automatic Non-Spin Redeployment and Deployment Based on Resource Availability This System Change Request (SCR) modifies the Market Management System (MMS) Automatic Redeployment function such that it accounts for the delay involved in deployment of Off-Line Non-Spinning Reserve (Non-Spin) Resources. 11/02/2011  ERCOT No Approved
SCR769 CRRAH Digital Certificate New Role for Read Only Access

This System Change Request (SCR) will provide the capability to a read only role in addition to the read and write role for Congestion Revenue Right (CRR) Account Holders.  Currently Digital Certificates for CRR Account Holders provides read and write capabilities to the certificate holder.  Austin Energy (AE) request that ERCOT create a read only role in addition to the read and write role.

11/29/2011  Austin Energy No NA Approved
SCR770 Revision to Outage Scheduler Entry for Resource Maintenance Outage Level Designation This System Change Request (SCR) will make a change to the Outage Scheduler system so that the Qualified Scheduling Entity (QSE) is able to schedule Level I, II and III Maintenance Outages in a way that coincides with the definition of these Maintenance Outages shown in Protocol Section 2.1.  Currently the data entry into the Outage Scheduler allows the user to enter the start of the proposed Outage only and the system infers from that the Maintenance Level of the Outage.  However, there are instances where the start of the Outage can actually be earlier than that required by the designated Maintenance Level.  The system needs to be changed so that the user can enter the requested start date of the Outage separately from the duration of time allowed before the maintenance would prevent a Forced Outage. 01/18/2012  Luminant Energy Company LLC No Not applicable Approved
SCR771 ERCOT System Change Allowing Independent Master QSE to Represent Split Generation Resources This System Change Request (SCR) modifies ERCOT systems to allow owners of Split Generation Resources to contract for service with an independent Master Qualified Scheduling Entity (QSE). 01/24/2012  Joel Buck on behalf of Sandy Creek Services, LLC No Approved