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PRR 548 UPDATE Settlement for Mismatched Inter-QSE Energy Schedules

PRR 548 UPDATE Settlement for Mismatched Inter-QSE Energy Schedules. Commercial Operations Subcommittee Meeting March 22 nd , 2005. PRR 548 Update. PRR 548 approved in February – Effective upon system implementation Note – No project has been started for implementation at this time

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PRR 548 UPDATE Settlement for Mismatched Inter-QSE Energy Schedules

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  1. PRR 548 UPDATE Settlement for Mismatched Inter-QSE Energy Schedules Commercial Operations Subcommittee Meeting March 22nd, 2005

  2. PRR 548 Update • PRR 548 approved in February – Effective upon system implementation • Note – No project has been started for implementation at this time • No changes to Market Operations • Mismatch notices will continue • Three Scenarios discussed • Mismatch due to no counter-party • Mismatch due to different zones submitted by QSEs • Mismatch due to scheduling different amounts between counter-parties in the same zone • Only Scenario 3 is affected by PRR 548

  3. Settlement changes • Current – Mismatched schedules settled at MCPE with ERCOT • PRR 548 – Only the portion of the schedule which exceeds the corresponding Inter-QSE energy schedule at MCPE • Request from COPS – Both QSEs involved in the mismatch need to receive information on mismatch quantities to facilitate bilateral reconciliation of mismatches

  4. Market Operations – No changes from PRR 548 • Mismatch notifications during the Operating day • TML – Schedule mismatches are shown as red <Notifications> <ScheduleMismatch> <DAY>20010101</DAY> <TIME>1200</TIME> <REASON>Schedule insufficient in ENE obligation</REASON> <SCHEDDAY>20010102</SCHEDDAY> <INTERVAL>1345</INTERVAL> <TYPE>ENE</TYPE> </ScheduleMismatch> </Notifications> • API – XML mismatch notices are sent

  5. Market Operations – No changes from PRR 548 • Mismatch data after the Operating day • Schedules and bids extract • Energy Schedules table

  6. Market Operations – No changes from PRR 548 • Mismatch data after the Operating day • Schedules and bids extract • Energy Schedules table • Matched flag – Indicates schedule entries that are matched with the counterparty's schedule. • 1 – Matched • 2 – Not Matched XML Queries for mismatches also available – No changes from PRR 548

  7. MSBD MSBR MWh Settlement – Current Billing Determinants QSE A QSE B Resource Obligation Resource Obligation 1,000 MW A North 1,000 MW B North 1,200 MW A North 1,200 MW B North MSBR = 1200 MW/4 = 300 MWh MSBD = 1000 MW/4 = 250 MWh

  8. MSBRDELTAINFO MSBRDELTA MWh MSBR Settlement – Solution per PRR 548 QSE A QSE B Resource Obligation MISMATCH Resource Obligation 1,000 MW A North 1,000 MW B North 1,200 MW A North 1,200 MW B North MSBRDELTA = 200 MW / 4 = 50 MWh Settled at MCPE

  9. MSBRDELTAINFO MSBRDELTA MWh MSBR Settlement – COPS Proposed Billing Determinants QSE A QSE B Resource Obligation MISMATCH Resource Obligation 1,000 MW A North 1,000 MW B North 1,200 MW A North 1,200 MW B North MSBRDELTA = 200 MW / 4 = 50 MWh Settled at MCPE MSBRDELTAINFO = 200 MW / 4 = 50 MWh To be provided to QSE-B For information only

  10. MSBDDELTAINFO MSBDDELTA MWh MSBD Settlement – Solution per PRR 548 QSE A QSE B Resource Obligation MISMATCH Resource Obligation 1,000 MW A North 1,200 MW B North 1,000 MW A North 1,200 MW B North MSBDDELTA = 200 MW /4 = 50 MWh Settled at MCPE

  11. MSBDDELTAINFO MSBDDELTA MWh MSBD Settlement – COPS Proposed Billing Determinants QSE A QSE B Resource Obligation MISMATCH Resource Obligation 1,000 MW A North 1,200 MW B North 1,000 MW A North 1,200 MW B North MSBDDELTAINFO = 200 MW / 4 = 50 MWh To be provided to QSE-B For information only MSBDDELTA = 200 MW /4 = 50 MWh Settled at MCPE

  12. Issue with providing Delta Information cut: • Per Protocol section 1.3.1 • 1.3.1 Restrictions on Protected Information • This Section 1.3 shall apply to Protected Information disclosed by a Market Participant to ERCOT or by ERCOT to a Market Participant. ERCOT or any Market Participant (“Receiving Party”) may not Disclose Protected Information received from the other (“Disclosing Party”) to any person, corporation, or any other Entity except as specifically permitted in this Section and in these Protocols. Receiving Party may not use Protected Information except as necessary or appropriate in carrying out responsibilities under these Protocols. To “Disclose” means to, directly or indirectly, disclose, reveal, distribute, report, publish, or transfer Protected Information to any party other than to the Disclosing Party which provided the Protected Information. • Per Protocol section 1.3.1.1 (5) • Energy and Ancillary Service Schedules identifiable to a specific QSE; • Disclosing the Delta cut to the counter-party reveals the schedule of another QSE. • Solution – Change to 4.7.2 (2) (C) of the Protocols to allow ERCOT to disclose mismatched schedule adjustments to QSE and Counterparty

  13. Questions and Answers Questions ?????

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