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Protocol Revision Subcommittee

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The ERCOT Technical Advisory Committee met on January 8, 2004, to review and recommend action on several Protocol Revision Requests (PRRs). A total of 7 PRRs were recommended for approval, while 2 PRRs require withdrawal affirmation. Key topics addressed include energy procurement, reliability analysis, resettlement notices, competitive metering, and system fuel availability. The potential impacts on ERCOT's business and computer systems were found to be minimal, except for some minor staffing considerations. Changes are effective as of specific dates in early February 2004.

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Protocol Revision Subcommittee
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  1. Protocol Revision Subcommittee Report to the ERCOT Technical Advisory Committee January 8, 2004

  2. Summary • 7 PRRs recommended for approval • 2 PRRs require withdrawal to be affirmed

  3. PRR 404 – Energy Procured from ERCOT • Protocols don’t currently address relaxed balance schedule (RBS) usage by resources • Previous RBS PRR addressed load usage and credit requirements • ERCOT Credit Committee reviewed PRR and recommended changes after PRS recommended approval

  4. PRR 404 – Energy Procured from ERCOT • PRR impact on ERCOT business and computer systems appears to be minimal although common use of RBS could impact the amount of BES available to ERCOT and impact operations • Effective upon ERCOT staffing requirements being filled

  5. PRR 404 – Energy Procured from ERCOT • Credit Committee proposed changes would review a QSE’s estimated net aggregate load and resource variance from schedule to determine RBS use • If net greater than 20%, then additional collateral would be required by ERCOT

  6. PRR 461 – Confidential Exceptions for Reliability Analysis • PRR addresses QSE data to be analyzed following a reliability event • Lists data to be made available not earlier than 10 days following such an event • No business, computer, or operational impacts; minor staffing impacts • Effective February 1, 2004

  7. PRR 467 – Elaboration on the Notice of Resettlement • PRR provides market with more information about resettlements, such as the reason for resettlements and affected dates • Minor business practice impact • Effective February 1, 2004

  8. PRR 469 – Compliance for Competitive Metering & Load Profiling • Conforms Protocols to PUCT rules and rulings • Addresses TDSP, ERCOT and CR responsibilities for sampling, TOU schedules and DLC • Clarification - Minor business practice impact • Effective February 1, 2004

  9. PRR 470 – System Fuel Availability • Adds fuel availability as a factor for consideration in emergency conditions • No business, computer, or staffing; minor operational impacts • Effective February 1, 2004

  10. PRR 471 – NIDR to IDR Default Profile Scaling • PRR scales the IDR default profile based on the last NIDR reading to avoid variances in initial/final settlements • Impacts ERCOT computer systems (minor project) • Effective upon system implementation

  11. PRR 473 – Reactive Standards • TAC previously adopted reactive standards for inclusion into Protocols • PRR includes payment mechanism for induction generators to make a payment in lieu of meeting the standard • Impacts staffing (in ’04 budget) and computer systems • Effective February 1, 2004

  12. PRRs for Withdrawal • PRR 293 – Uncontrollable Renewable Resources • Superceded by PRR 426’s approval • PRR 455 – Liability for QSE Default/Responsibility for ERCOT Admin Fee • Was split into two PRRs for consideration at next PRS meeting

  13. Requested TAC Action • PRRs For Approval • PRR 404 – Resource RBS • PRR 461 – Reliability Analysis Confidentiality • PRR 467 – Resettlement Notice • PRR 469 – Competitive Metering/Load Profiling • PRR 470 – System Fuel Availability • PRR 471 – NIDR to IDR Profile Scaling • PRR 473 – Reactive Standards

  14. Requested TAC Action • PRRs For Withdrawal Affirmation • PRR 293 – Uncontrollable Renewable Resources • PRR 455 – Liability for QSE Default/ERCOT Admin Fee