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ERCOT Market Update: May 28, 2010

Stay informed with ERCOT's latest updates on antitrust guidelines, environment reports, known issues, and real-time market trials. Get insights on planned outages, market trials roadmap, and standing reports. Participate in the WebEx session for interactive discussions.

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ERCOT Market Update: May 28, 2010

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  1. Market TrialsReal-Time Market / LFC Weekly Update May 28, 2010 http://nodal.ercot.com 1

  2. Antitrust Admonition ANTITRUST ADMONITION ERCOT strictly prohibits Market Participants and their employees who are participating in ERCOT activities from using their participation in ERCOT activities as a forum for engaging in practices or communications that violate the antitrust laws. The ERCOT Board has approved guidelines for members of ERCOT Committees, Subcommittees and Working Groups to be reviewed and followed by each Market Participant attending ERCOT meetings. If you have not received a copy of these Guidelines, copies are available at the Client Relations desk. Please remember your ongoing obligation to comply with all applicable laws, including the antitrust laws. DISCLAIMER All presentations and materials submitted by Market Participants or any other Entity to ERCOT staff for this meeting are received and posted with the acknowledgement that the information will be considered public in accordance with the ERCOT Websites Content Management Operating Procedure. http://nodal.ercot.com 2

  3. Agenda • Antitrust Admonition • Environment Report • Planned / unplanned outages • Known Issues • Standing Reports and Updates • General reminders / updates • RTM / LFC Update • SPP and RTRMPR Calculation Issues • LFC Calendar Update • 2-Hour LFC Test Update • State Estimator Convergence Statistics • Question and Answers / General Discussion ERCOT asks that Market Participants log into the WebEx session using their company name and then their name. This will allow ERCOT to take roll-call offline http://nodal.ercot.com 3

  4. Market Trials 2010 Roadmap http://nodal.ercot.com 4

  5. Environment Report: Planned / Unplanned Nodal Outages • Planned Outages • 05/28 1:30 P.M. – 2:30 P.M. • Software patches are being deployed for the CDR application and may result in slight interruption with report availability during the outage window. • Unplanned Outages • 05/24 8:00 A.M. – Ongoing • Performance degradation with Bidset response notifications occurred during the week. Root cause has been identified as a network I/O block associated with some of the QSE notification listeners, which has resulted in extended latency in the delivery cycles. • 05/24 8:00 A.M. – 3:00 P.M • Load Ratio share data was unavailable via the external web service’s market information interface. • 05/27 1:00 P.M. –2:30 P.M • MIS users experienced display problems with portlet and image alignment on various pages of the Portal. http://nodal.ercot.com 5

  6. Known Issues • SCED Shadow Prices and Binding Constraints Report • Issue: • All prices and constraints per SCED run should be included in the report • The report file on MIS has been posting with only one price/constraint pair for the reporting period (hourly posting) • Cause: • The query that Current Day Reports has been using to pull the data for this report was previously scripted to pull only the data for the interval prior to the query execution • Resolution: • The query has now been re-scripted to include all data for the range of the previous hour • The query updates are scheduled to deploy to Nodal Production on May 28 http://nodal.ercot.com 6

  7. Standing Reports and Updates: General Reminders / Updates • Real-Time Known Issues List • The Updated Real-Time Known Issues List will post overnight to the Readiness Center (http://nodal.ercot.com/readiness/markettrials/rtm/index.html). • Network Model Update • The current system loaded from the model 05/24/10 • Next scheduled load is 06/01/10 • Web Service Release has been Delayed • The web services release, External Interfaces Specification v1.19L, has been delayed. The release date was originally planned for 5/28 and has now been moved to 6/11. The specification is posted at http://nodal.ercot.com/readiness/sandbox/index.html. • Send questions to MarketTrials@ercot.com. http://nodal.ercot.com 7

  8. Standing Reports and Updates: General Reminders / Updates • WGRPP/STWPF values for COP • The forecast value that should currently be used to update the nodal COP is the WGRPP value • Once the ERCOT Board approves NPRR210 to synchronize with PRR841, the STWPF value should be used • The NPRR timeline currently shows NPRR210 to be scheduled for discussion at TAC on June 3 and at the Board on July 20 http://nodal.ercot.com 8

  9. Real Time Market / LFC Update 12/19/2019 http://nodal.ercot.com 9

  10. Real Time Market / LFC Update • SCED Week 17 • 5/25 15:30-17:15; 5/26 15:30-16:50 ran out of EOC • Unconstrained intervals between $14 - $57 • Thursday • 10:15 - 15:05 Garrott - Midtown 138 kV • 11:05 - 16:10 Bellaire 345/138 Transformer • Friday • 10:10 -10:30 North to Houston • 12:25 - 17:45 PH Robinson 345/138 Transformer • 12:25 - 17:10 Garrott - Midtown 138kV • 15:50 - 17:10 Bellaire 345/138 Transformer • 20:50 - 23:40 West to North stability • 20:50 - 23:40 North to Houston OC1 Saturday 6:25 - 17:25 Matador - Paducah 69KV 6:35 - 8:50 Leon Switch to Flat Creek 138 kV 9:25 - 13:50 Jewett - Singleton 345KV 12:45 - 14:30 PH Robinson 345/138 Transformer Monday 9:55 - 14:00 PH Robinson 345/138 Transformer 9:55 - 19:40 Garrott to Midtown 138 kV 20:15 - 21:00 West to North stability limit Tuesday 08:25 - 22:30 Garrott to Midtown 138 kV 10:00 - 14:00 Leon Switch to Flat Creek 138 kV Wednesday 13:20 - 21:00 Garrott to Midtown 138 kV http://nodal.ercot.com 10

  11. Missed MIS LMP Reports • BLACK - Database performance trigger to be fixed in next MMS patch • RED – due to site failover test • BLUE – due to JBOSS crash (did not send completion message) • GREEN – network issues http://nodal.ercot.com 11

  12. ONTEST Status • When a resource telemeters ‘ONTEST’, SCED sets the resource dispatch limits equal to the current telemetered MW of the resource prior to running. This forces SCED to dispatch the resource to its current telemetered MW http://nodal.ercot.com 12

  13. Settlement Point Price (SPP) and Real-Time Resource Meter Price (RTRMPR) Calculation Issues http://nodal.ercot.com 13

  14. SPP Calculation Issues SPP Calculation Issues • There have been a few issues with some of the SPP calculations and a few defects are still open • Some of the past prices have been incorrect • Until the remaining defects are closed there will still be some incorrect calculations • These issues will be posted on the Readiness Center for tracking purposes at http://nodal.ercot.com/readiness/markettrials/rtm/index.html • SPP issues and status are described on the next slides http://nodal.ercot.com 14

  15. SPP Calculation Issues SPP Calculation Issues (continued) http://nodal.ercot.com 15

  16. SPP Calculation Issues SPP Calculation Issues (continued) http://nodal.ercot.com 16

  17. RTRMP Calculation Issues RTRMP Calculation Issues • There have been a few issues with some of the RTRMP calculations and a few defects are still open • Some of the past prices have been incorrect • Until the remaining defects are closed there will still be some incorrect calculations • These issues will be posted on the Readiness Center for tracking purposes at http://nodal.ercot.com/readiness/markettrials/rtm/index.html • RTRMP issues and status are described on the next slides http://nodal.ercot.com 17

  18. RTRMP Calculation Issues RTRMP Calculation Issues (continued) http://nodal.ercot.com 18

  19. RTRMP Calculation Issues RTRMP Calculation Issues (continued) http://nodal.ercot.com 19

  20. RTRMP Calculation Issues RTRMP Calculation Issues (continued) http://nodal.ercot.com 20

  21. RTRMP Calculation Issues RTRMP Calculation Issues (continued) http://nodal.ercot.com 21

  22. LFC Calendar Update http://nodal.ercot.com 22

  23. LFC Calendar Update LFC Calendar (MT4) (No Updates to report since the May 21 Real-Time Call) • 76 QSEs/Sub-QSEs were targeted for Individual QSE tests • 73 scheduled a test window (99.15% of Generation) • 3 were unable to test due to modeling issues • 70 QSEs/Sub-QSEs completed all testing or an attestation (96.86% of Generation) • 6 QSE/Sub-QSEs (2.78% of Generation) are working with ERCOT to resolve remaining issues, including: • Modeling issues • ICCP issues • Additional testing needed • The updated LFC Calendar will deploy overnight to the Readiness Center at http://nodal.ercot.com/readiness/markettrials/rtm/index.html • Submit questions regarding the LFC Calendar to markettrials@ercot.com http://nodal.ercot.com 23

  24. LFC Calendar Update LFC Calendar (MT5) – Upcoming Key Dates • May 28 • Publish the 8-Hour LFC Approach document to the Readiness Center • Week of June 1 • ERCOT and Market Participants begin 24x7 telemetry support • June 1 – 11 • Prepare for the 8-Hour LFC Test • June 4 • Report results from the 2-Hour LFC Test on the Real-Time Market Call • The discussion of results may move to the 8-Hour LFC Workshop on June 8 • June 8 • Conduct 8-Hour LFC Workshop • Discuss operational test scenarios that will be conducted during the 8-Hour LFC Test • Week of June 14 • Conduct the 8-Hour LFC Test (June 16 – 18 timeframe) • Publish the 48-Hour LFC operational test scenarios to the Readiness Center http://nodal.ercot.com 24

  25. State Estimator Convergence http://nodal.ercot.com 25

  26. State Estimator Convergence Update * State Estimator was unable to reach a convergence solution based on the data available to it during a six hour period (non-business hours) from Hour Ending (HE) 2100 on May 20th to HE 0300 on May 21st. http://nodal.ercot.com 26

  27. State Estimator Convergence Update http://nodal.ercot.com 27

  28. Q&A Q&A / Open Forum http://nodal.ercot.com 28

  29. Appendix http://nodal.ercot.com 29

  30. Standing Reports and Updates: General Reminders / Updates • Changes to Market Call Schedule: • Beginning May 7, the times the market call schedule will change as follows: • 09:00 AM - 09:30 AM Outage Scheduling • 09:30 AM - 10:00 AM Congestion Revenue Rights • 10:00 AM - 11:00 AM Day Ahead Market / RUC / SASM • 11:00 AM - 12:00 PM Real Time Market / LFC • 12:00 PM - 01:00 PM Break • 01:00 PM - 02:00 PM COMS/Settlements • WebEx Details will be posted at: http://www.ercot.com/committees/nodal/mt/ http://nodal.ercot.com 30

  31. URLS and EMAIL ADDRESS FOR SUPPORT • URLs for access the Nodal Production systems • MIS: https://mis.ercot.com/pps/tibco/mis/ • Market Manager: https://mis.ercot.com/pps/tibco/mis/Click the ‘Applications’ tab in the upper menu. Link is in the ERCOT Applications portlet • CRR: https://mis.ercot.com/pps/tibco/mis/Click the ‘Markets’ Link in the upper menu. Click CRR in the Market sub menu • EWS: https://misapi.ercot.com/2007-08/Nodal/eEDS/EWS • Reminder: Market Trials email address change: ERCOT asks that MPs use the markettrials@ercot.com email address for questions from this point forward • This will begin the phasing out of eds2@ercot.com, eds3@ercot.com and eds4@ercot.com email addresses. • A centralized address will no longer require MPs to “guess” which email address to use for their questions • We have implemented a more effective method of routing and responding to emails using this address • The old eds emails can continue to be used until 2009 hold over efforts are completed (such as telemetry outreach) http://nodal.ercot.com 31

  32. Market Trials Handbooks • Market Trials Handbooks • Available on the Readiness Center at the following links • Real Time Market / LFC covering Phase http://nodal.ercot.com/readiness/markettrials/rtm/index.html • Outage Scheduler covering Phase http://nodal.ercot.com/readiness/markettrials/os/index.html • CRR covering release Phase http://nodal.ercot.com/readiness/markettrials/crr/index.html • Settlements / COMs covering Phase http://nodal.ercot.com/readiness/markettrials/coms/index.html • Day Ahead Market http://nodal.ercot.com/readiness/markettrials/dam/index.html http://nodal.ercot.com 32

  33. 2-Hour LFC Test Update http://nodal.ercot.com 33

  34. 2-Hour LFC Test Update 2-Hour LFC Test Update http://nodal.ercot.com 34

  35. 2-Hour LFC Test Update 2-Hour LFC Test Update (continued) http://nodal.ercot.com 35

  36. 2-Hour LFC Test Update 2-Hour LFC Test Update (continued) http://nodal.ercot.com 36

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