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EDS Market Call

EDS Market Call. Bi-Weekly Update. Mar 20, 2009. Antitrust Admonition. ANTITRUST ADMONITION

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EDS Market Call

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  1. EDS Market Call Bi-Weekly Update Mar 20, 2009 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. http://nodal.ercot.com 2

  3. Agenda • Nodal market activity update • Day-to-day operations summary • Planned and Unplanned ERCOT outages of EDS systems • Future dates of any system upgrades • Standing reports and updates • Focused Input Testing • Nodal API sub-group • Reports/Extracts (first meeting of each month) • Q&A / General Discussion • Deep Dive Topic (different topics each meeting as needed) • Review of EWS performance boundaries / policy changes 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. Nodal Market Activity Update:WMS-Approved Date Changes to Nodal Verifiable Cost Submissions • WMS-Approved Date Changes to Nodal Verifiable Cost Submissions(from COMS Nodal Verifiable Cost Implementation Plan V2 White Paperhttp://nodal.ercot.com/readiness/golive/index.html ) Table 1: Verifiable Cost Submissions by Generator Type http://nodal.ercot.com 4

  5. Day-to-day operations summary: Planned / Unplanned Outages of EDS • Planned Outages • Tuesday, March 17, 2009, 10:00AM until 10:00PM Nodal EMS - Upgrade of the Nodal EMS system and database platform. ICCP data was static periodically during the outage (e.g. basepoints not calculated) • Wednesday, March 18, 2009, 12:00PM until 5:00PM Nodal MIS Reports - Routine maintenance on the server which supports the Nodal MIS Report Services, preventing delivery of reports to MIS. • Thursday, March 19, 2009, 12:00PM until 1:00PM Nodal EDS Sandbox - Release to implement the External Interfaces Specification v1.18 to the Nodal EDS Sandbox environment. The Nodal EDS Sandbox environment was unavailable for ~ ½ hour. • Unplanned Outages • 3/7 – present – LMP contour map server was decommissioned and will be replaced. The Next generation of the map will be deployed on top of EIS 1.19 / Last Release of MMS and will be available in August. • 3/13/09 1:30 PM – 5:00 PM – Nodal Outage Scheduler unavailable. Restarting services resolved the issue. • 3/3 – Present – Sandbox notifications throwing errors preventing delivery to MP’s. We are investigating the issue with development. Presently, we have disabled email alerts (to MP’s) for failed notifications. http://nodal.ercot.com 5

  6. Future dates of any system upgrades • Reminders: • EIS version 1.18 is now available at http://nodal.ercot.com/readiness/sandbox/documents/index.html • EIS Version 1.18 EWS deployment (Sandbox only): • Deployment completed as scheduled • All 1.18 features are now available for testing in the sandbox • EIS Version 1.19 current schedule: • Specification to be published on 6/5/09 • Sandbox deployment on 7/7/09 • EDS deployment on 8/10/09 http://nodal.ercot.com 6

  7. Standing reports and updates: Focused Input Testing Update • Next testing will take place 3/24 – 3/26 • Reminder: remaining FIT windows will only review telemetry and state estimator convergence. SCED inputs will be removed from FIT until further notice. http://nodal.ercot.com 7

  8. Focused Input Testing (FIT) III, Week 2 – State Estimator FIT III Assessment reports will be posted at: http://nodal.ercot.com/readiness/eds3/documents/index.html http://nodal.ercot.com 8 Key Numbers 96.07% Test Average Convergence 20 of the 27 Test Hours had 100% convergence TDSP database failure – 44.4% for Hour 2 of March 11 http://nodal.ercot.com 8

  9. Q&A Q&A / Open Forum http://nodal.ercot.com 9

  10. Review of EWS Performance Boundaries / Policy Changes Deep Dive Topic Mar 20, 2009 http://nodal.ercot.com 10

  11. EWS Policy Changes • Utilicast’s findings in Audit Report #9 included an item pertaining to EWS • “The specification for volume limits (message size) and package content (heterogeneous messages) managed by the external web services have not yet been fully defined” • Consequently, there is a risk that transactions submitted by Market Participants may not be processed due to system constraints • In the interest of ensuring reliable market function, ERCOT assessed this situation and determined that changes were required • ERCOT’s approach to address this issue is to set and enforce limits on submittals • Limitations in place for the 2008 market trials (file size and composition) will be formalized and documented in the EIP 1.19 release • Minor changes to both, ERCOT’s XML Schema and WSDL will be made to enforce these limits • The External Interface Specification (EIS) will be modified to explicitly state these limitations • Message composition estimates will be provided to help Market Participants assess the impact of these changes on their Web Service usage http://nodal.ercot.com 11

  12. EWS Policy Changes (Cont.) • The following guidelines introduced during previous market trials will be established as policy • Only Homogeneous BidSets will be supported • BidSets can contain multiple bids, but all bids must be of the same type • e.g. COP, TPO, OS, etc must be submitted in separate messages • ERCOT’s XML Schema will be modified to enforce this restriction • Inbound message sizes will be limited to 3 Mb • Size limits will be subject to ongoing review by ERCOT during the upcoming performance testing and market trials • WSDL will be modified to enforce message size limit • These restrictions exist in the EDS environment today • WSDL and XSD Schema can be used to validate on the client side • At this time, there are no plans to support Heterogeneous BidSets or unlimited request message sizes in the future http://nodal.ercot.com 12

  13. Average Message Size Estimates http://nodal.ercot.com 13

  14. Average Message Size Estimates (continued) http://nodal.ercot.com 14

  15. Average Message Size Estimates (continued) http://nodal.ercot.com 15

  16. Average Message Size Estimates (continued) http://nodal.ercot.com 16

  17. Q&A / OPEN FORUM http://nodal.ercot.com 17

  18. Appendix http://nodal.ercot.com 18

  19. Nodal Market Activity Update:EDS and Market Activities 2009(originally presented on 2/6/09) 2009 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Open loop test Telemetry and SE FIT w/ SCED begins 7x24 ERCOT monitoring Focused Input Testing (Telemetry and SE) Sandbox v1.19 Submission Testing SCED & DAM Publish v1.19 MMS+v1.19+UI+MPIM SCED submissions begin QSEs w/ Res SCED re-qualification All QSEs re-qualify DAM submissions Resource Registration All other RE’s Transmission asset registration PUNS Transmission asset registration Verifiable Costs Submission of Verifiable Costs for Resources (different dates for technologies) Training on NOMCR Network Model SEM Go-Live Milestone TSP model synchronization TSP MOD training COMS Extracts User Guide release “Get Reports” available Reporting NDSML and extract supporting documentation updates ** Final dates are available in the Integrated Project Schedule http://nodal.ercot.com 19

  20. Standing reports and updates: Nodal API sub-group(originally presented on 2/6/09) • TPTF Action – Report, by Transaction, Completion Confidence • Each Transaction will be classified into 3 confidence levels • RED – Confidence low – high risk of change in the 1.18 and/or 1.19 releases • YELLOW – Changes should be limited to non-structural changes (e.g. enumeration changes) • GREEN – Any Changes will be limited to defects. • Note that if there are no changes in 1.18 and significant change in 1.19, a transaction will be marked as RED for both. It will retain that color until all changes are complete. http://nodal.ercot.com 20

  21. Standing reports and updates: Nodal API sub-group(originally presented on 2/6/09) http://nodal.ercot.com 21

  22. Standing reports and updates: Nodal API sub-group(originally presented on 2/6/09) http://nodal.ercot.com 22

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