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PRR 568 – Day 17 to Day 10 Analysis Implementation Recommendation

PRR 568 – Day 17 to Day 10 Analysis Implementation Recommendation. COPS November 2005. PRR 568 Implementation Plan Schedule – from 6/28 COPS mtg. ACTION. PRR 568 Implementation Plan. Original AGREED ACTION.

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PRR 568 – Day 17 to Day 10 Analysis Implementation Recommendation

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  1. PRR 568 – Day 17 to Day 10 Analysis Implementation Recommendation COPS November 2005

  2. PRR 568 Implementation Plan Schedule – from 6/28 COPS mtg ACTION

  3. PRR 568 Implementation Plan Original AGREED ACTION • The following Metrics have been discussed by COPS for setting triggers that would lead to recommendation for TAC to authorize the migration to Day 10 Initial Settlement • Review Market Wide UFE comparing Day 10 to Day 17 results – to understand if there is a material change • No material change in Load or settlement impact of a market participant caused by changing initial settlement to Day 10

  4. All data presented in the body of this presentation are available from the COPS PRR568 Final Report.ppt attached in the appendix. All the reports presented to COPS will also be available on the ERCOT website http://www.ercot.com/Participants/Committees/Documents/cow_comm_materials.html Data Loading IDR 20% @ Day 10 vs 44% @ Day 17 NIDR 19% @ Day 10 vs 42% @ Day 17 Seasonal Load Change analysis Minimal Summer to Fall weather transition was observed Significant weather event was observed Data Analysis Summary

  5. Aggregation Results Generation Changes Minimal changes – approximately (-) 0.01% Non systematic - changes attributable to site specific issues Load Changes QSE – Greater % change in load tend to be smaller QSE’s 48 had 1% (+/-) change 10 had 3% (+/-) change LSE – similar conclusion 122 had 2% (+/-) change 18 had 2 to 5% (+/-) change 3 had 6 to 16% change UFE – no significant difference observed Data Analysis Summary (cont.)

  6. Credit impacts – The anticipated benefit of this PRR (i.e. reduction in collateral required by ERCOT) is contingent on a change in the protocols not originally foreseen by the market. Change in estimated liability of a QSE currently based on 40 days to a number to be determined by the Credit Working Group should follow this recommendation Summary of Analysis

  7. Questions

  8. DRAFT Motion: COPS requests TAC recommend that the ERCOT Board of Directors approve Implementation of PRR568 according to the COPS approved transition plan Recommendation

  9. Appendix

  10. Reminder Slides Agreed PRR568 Implementation Settlement Timeline

  11. PRR 568 Proposed Settlement Statement Calendar ACTION

  12. PRR 568 – Proposed Settlement Statement Calendar(Continued) ACTION

  13. PRR 568 – Proposed Settlement Statement Calendar(Continued) ACTION

  14. PRR 568 – Proposed Settlement Statement Calendar(Continued) ACTION

  15. COPS PRR568 – Final Report.ppt (Final report slides to be appended in TAC material presentation)

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