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LMP Base Cases Presented to: NEPOOL Markets Committee November 19, 2001 Robert B. Burke

Agenda Item #4 11/19&20/01 MC Mtg. LMP Base Cases Presented to: NEPOOL Markets Committee November 19, 2001 Robert B. Burke. Contents. LMP Publishing Process LMP Overview Static Base Case What was analyzed? How it was analyzed Summary of Results Next Steps. Static Cases. Purpose:

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LMP Base Cases Presented to: NEPOOL Markets Committee November 19, 2001 Robert B. Burke

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  1. Agenda Item #4 11/19&20/01 MC Mtg. LMP Base Cases Presented to: NEPOOL Markets Committee November 19, 2001 Robert B. Burke

  2. Contents • LMP Publishing Process • LMP Overview • Static Base Case • What was analyzed? • How it was analyzed • Summary of Results • Next Steps

  3. Static Cases • Purpose: • Demonstrate software development progress • Provide Participants with samples effects of possible transmission line outage • Test new unit dispatch software (EMP, UDS/SPD)

  4. Future Releases • Purpose: • Provide Participants with snapshot of actual system dispatch with possible LMP values • ISO will try to choose a dispatch cycle from the prior month with congestion • Test changes to new unit dispatch software (EMP, UDS/SPD)

  5. Participant Input • Technical session to review static cases • December 5 - Springfield Sheraton • Register on-line at the ISO web site • Are there additional “static” cases you would like to see? • Email by December 14: cstedu@iso-ne.com • ISO will review suggestions and release results of those cases analyzed

  6. What is LMP? • Locational Marginal Price - cost of supplying the next MW of load • When congestion is present, locational marginal prices may be different by zone

  7. 3 Bus Example - 1 Generator-1 Capacity = 300 MW $10/MW Generator-2 Capacity = 200 MW $15/MW 200 MW Load 1 = 100 MW Market Clearing Price = $20 100 MW 400 MW Generator-3 Capacity = 200 MW $20/MW Load 2 = 499 MW Market Clearing Price = $20 99 MW

  8. 3 Bus Example - 2 Generator-1 Capacity = 300 MW $10/MW Generator-2 Capacity = 200 MW $15/MW 150 MW Thermal limit 150 MW Load 1 = 100 MW LMP = $10 350 MW 100 MW Generator-3 Capacity = 200 MW $20/MW 149 MW Load 2 = 499 MW LMP = $20

  9. What is Presented? • Static base case • Each Analysis Represents a Separate Transmission Line Outage • Resulting LMP values

  10. Static Cases • Started with secure network • Actual system from September 4, 2001 • Hour Ending 15 • Load 18,375 MW

  11. Data • Load • Generation • Tie line flow • Units on-line • Unit bid data • UDS/SPD agreed with Couger

  12. How analysis was run • Transmission Line removed from service • Contingency analysis performed • Contingencies identified • Overload identified (binding constraint)

  13. What’s in & What’s not We included: • Power Flow Model • Unit Bid Model and enforced: • Unit Capacity Limits • Unit Ramp Rate Limits • Generic Constraints We didn’t include: • Transaction Model • Inc/Dec Bid Model • Reserve Model • Market Power Mitigation

  14. Cases Analyzed

  15. Line 1723(E. Springfield - E. Springfield Junction - Piper) PRECONTINGENCY STATE LMP = $39.59

  16. Line 1723(E. Springfield - E. Springfield Junction - Piper) CONTINGENCY STATE

  17. Line 1723(E. Springfield - E. Springfield Junction - Piper) LMP WCMA Zone =$66.62 LMP CT Zone = $39.20 LMP other Zone = $38.25

  18. Line 326(Scobie - Sandy Pond) PRECONTINGENCY STATE LMP = $39.11

  19. Line 326(Scobie - Sandy Pond) CONTINGENCY STATE

  20. Line 326(Scobie - Sandy Pond) LMP ME Zone = $15.50 LMP NH Zone = $31.28 LMP WCMA Zone = $40.41 LMP NEMAB Zone = $41.78 LMP other Zones = $40.11

  21. Future Analyzes • Possible additional studies from this static base case • Release LMP values for a dispatch cycle once a month • Zonal LMP values • Binding Constraints

  22. Need more information? • SMD Overview and Locational Marginal Pricing training session • Sessions last week in November and first week in December • Register on-line • Customer, Seminars and Training

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