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SCED Constraint Competitiveness Test ( CCT) Update Review of (8/1/2013 to 10/8/2013)

SCED Constraint Competitiveness Test ( CCT) Update Review of (8/1/2013 to 10/8/2013). Market Analysis ERCOT. Background of NPRR 520 (SCED CCT). Why Change? SCED over-mitigation issues What Changed? No Monthly and Daily Constraint Competitiveness Test (CCT)

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SCED Constraint Competitiveness Test ( CCT) Update Review of (8/1/2013 to 10/8/2013)

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  1. SCED Constraint Competitiveness Test (CCT) Update Review of (8/1/2013 to 10/8/2013) Market Analysis ERCOT

  2. Background of NPRR 520 (SCED CCT) • Why Change? • SCED over-mitigation issues • What Changed? • No Monthly and Daily Constraint Competitiveness Test (CCT) • SCED CCT runs every 5 minutes (or whenever SCED is executed) • Less set of Resources get mitigated • Minimizing unnecessary Base Point oscillations/QSGR dispatch CMWG

  3. System Lambda Increase (8/1-10/8) CMWG

  4. Mitigation Ratio CMWG

  5. Increased Peaker Net Margin (PNM) CMWG

  6. Pivotal Players For Each Active Constraint (8/1-10/8) CMWG

  7. Pivotal Players For Each Active Constraint (8/1-10/8) (continued) CMWG

  8. Top 10 Non-Competitive Constraints Based on Frequency (8/1-10/8) CMWG

  9. Top 10 Non-Competitive Constraints Based on Frequency (8/1-10/8) CMWG

  10. Top 10 Non-Competitive Constraints Based on Frequency (1) From Station: ODESA (138kV) To Station: ODNTH (138kV) Load Zone: LZ_WEST Weather Zone: WZ_FAR_WEST CMWG

  11. Top 10 Non-Competitive Constraints Based on Frequency (2) From Station: MGSES (1kV) To Station: MGSES (138kV) Load Zone: LZ_WEST Weather Zone: WZ_WEST CMWG

  12. Top 10 Non-Competitive Constraints Based on Frequency (3) From Station: CAGNON (1kV) To Station: CAGNON (138kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTH_CENTRAL CMWG

  13. Top 10 Non-Competitive Constraints Based on Frequency (4) From Station: SEGUIN (138kV) To Station: SEGUWE (138kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTH_CENTRAL CMWG

  14. Top 10 Non-Competitive Constraints Based on Frequency (5) From Station: ODEHV (138kV) To Station: BTHOT (138kV) Load Zone: LZ_WEST Weather Zone: WZ_FAR_WEST CMWG

  15. Top 10 Non-Competitive Constraints Based on Frequency (6) From Station: SNG (345kV) To Station: ZEN (345kV) Load Zone: LZ_HOUSTON Weather Zone: WZ_EAST/WZ_COAST CMWG

  16. Top 10 Non-Competitive Constraints Based on Frequency (7) From Station: TOKSW (345kV) To Station: JK_CK (345kV) Load Zone: LZ_NORTH Weather Zone: WZ_EAST CMWG

  17. Top 10 Non-Competitive Constraints Based on Frequency (8) From Station: JEWET (345kV) To Station: SNG (345kV) Load Zone: LZ_NORTH Weather Zone: WZ_EAST CMWG

  18. Top 10 Non-Competitive Constraints Based on Frequency (9) From Station: LION_HILL (69kV) To Station: SMITH (69kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTHERN CMWG

  19. Top 10 Non-Competitive Constraints Based on Frequency (10) From Station: CAGNON (345kV) To Station: CAGNON (1kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTH_CENTRAL CMWG

  20. Top 10 Non-Competitive Constraints Based on Congestion Impact (ShadowPrice*Limit*BindingHours) (8/1-10/8) CMWG

  21. Top 10 Non-Competitive Constraints Based on Congestion Impact(1) From Station: ODESA (138kV) To Station: ODNTH (138kV) Load Zone: LZ_WEST Weather Zone: WZ_FAR_WEST CMWG

  22. Top 10 Non-Competitive Constraints Based on Congestion Impact(2) From Station: ODEHV (138kV) To Station: BTHOT (138kV) Load Zone: LZ_WEST Weather Zone: WZ_FAR_WEST CMWG

  23. Top 10 Non-Competitive Constraints Based on Congestion Impact(3) From Station: SNG (345kV) To Station: ZEN (345kV) Load Zone: LZ_HOUSTON Weather Zone: WZ_EAST/WZ_COAST CMWG

  24. Top 10 Non-Competitive Constraints Based on Congestion Impact(4) From Station: CAGNON (1kV) To Station: CAGNON (138kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTH_CENTRAL CMWG

  25. Top 10 Non-Competitive Constraints Based on Congestion Impact(5) From Station: MGSES (1kV) To Station: MGSES (138kV) Load Zone: LZ_WEST Weather Zone: WZ_WEST CMWG

  26. Top 10 Non-Competitive Constraints Based on Congestion Impact(6) From Station: SNG (345kV) To Station: ZEN (345kV) Load Zone: LZ_HOUSTON Weather Zone: WZ_EAST/WZ_COAST CMWG

  27. Top 10 Non-Competitive Constraints Based on Congestion Impact(7) From Station: TOKSW (345kV) To Station: JK_CK (345kV) Load Zone: LZ_NORTH Weather Zone: WZ_EAST CMWG

  28. Top 10 Non-Competitive Constraints Based on Congestion Impact(8) From Station: CGRSW (138kV) To Station: BCKSW (138kV) Load Zone: LZ_WEST Weather Zone: WZ_EAST CMWG

  29. Top 10 Non-Competitive Constraints Based on Congestion Impact(9) From Station: LON_HILL (69kV) To Station: ROB_CPL (69kV) Load Zone: LZ_SOUTH Weather Zone: WZ_SOUTHERN CMWG

  30. Top 10 Non-Competitive Constraints Based on Congestion Impact(10) From Station: CNRSW (138kV) To Station: GRLRD (138kV) Load Zone: LZ_NORTH Weather Zone: WZ_NORTH_CENTRAL CMWG

  31. Constraints with Both Competitiveness Status (8/1-10/8) CMWG

  32. Summary of Impact of NPRR 520 CMWG

  33. Thanks! CMWG

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