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Texas Nodal EDS Market Trials Approach Wednesday, November 29, 2006

Texas Nodal EDS Market Trials Approach Wednesday, November 29, 2006. Agenda. Market Trials Objectives High Level Schedule EDS Phases EDS Timeline / Detailed Drill Down EDS Detailed Planning Define Transition Plan Traceability Matrix Detail Market Trial Phases and Test Areas

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Texas Nodal EDS Market Trials Approach Wednesday, November 29, 2006

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  1. Texas NodalEDS Market Trials ApproachWednesday, November 29, 2006 http://nodal.ercot.com 1

  2. Agenda • Market Trials Objectives • High Level Schedule • EDS Phases • EDS Timeline / Detailed Drill Down • EDS Detailed Planning • Define Transition Plan Traceability Matrix • Detail Market Trial Phases and Test Areas • Create Entrance / Exit Criteria Checklists • Define Test Cycles, MP Segmentation, and Test Calendars • Outline Market Trials reporting requirements • Next Steps • Market Trials Approach comments and approval • Detail out specific sections and review with TPTF • Tentative Schedule http://nodal.ercot.com 2

  3. Objective of market trials The objective of market trials is to confirm through a series of structured and unstructured tests that: “stable and accurate operations of the SCADA, Network Security Analysis, Transmission Constraint Management, SCED, LFC, DAM, RUC, and real time settlement system can be declared” as outlined in the Nodal Transition Plan. http://nodal.ercot.com 3

  4. Approach aligns with the Nodal Timeline http://nodal.ercot.com 4

  5. Market Trials Phases • EDS 1 – Data and Telemetry • EDS 2 – State Estimator, Network Security Analysis • EDS 3 – Real Time Market Operations • EDS 4 – Day Ahead Market Operations http://nodal.ercot.com 5

  6. EDS - Market Trials Timeline Jul 07 Aug 07 Sep 07 May 07 Jun 07 Nov 07 Dec 08 Oct 07 Dec 07 Jan 08 Feb 08 Mar 08 Apr 08 May 08 Jun 08 Jul 08 Aug 08 Sep 08 Oct 08 Nov 08 Market Trials Start ICCP / Telemetry Validation EDS 1 SE Validation EDS 2 Resource Registration AS Qualification Market Operations Functional Testing LMP Market Readiness Criteria MET 3/31/08 Single Entry Model GO LIVE All QSEs – Real Time Parallel Operations Cycle 1 LMP w Controls Market Operations Sandbox & ERCOT UAT EDS 3 SCED testing cycles, voluntary per QSE scripted for 30 days Thereafter all QSEs participate in real time parallel operations Reasonable LMPs 24x7 support All available MPs Reasonableness criteria met 6 months Limited 24x7 support Full 24x7 support 1 hr EECP ACE Compliance Comment Period ACE – 2 weeks (5.4.8 (2) Compare existing with new ACE results DR Testing Market Operations Sandbox & ERCOT UAT EDS 4 - Day Ahead Operations EDS 4 168 hour test complete 12/01/08 Realtime Markets GO LIVE Feedback 168 hour trial Go-Live & Transition 168 Hour Test – 4 weeks to complete; 4 week feedback-fix 12/08/08 Forward Markets GO LIVE Zonal Markets Shutdown GO/NO GO ` http://nodal.ercot.com 6

  7. Market Trials Timeline and the detailed Market Trials Plan http://nodal.ercot.com 7

  8. EDS Detailed Planning Overview • Define Transition Plan Traceability Matrix • Detail Market Trial Phases and Test Areas • Create Entrance / Exit Criteria Checklists • Define test cycles, MP segmentation, and test calendar • Additional Areas http://nodal.ercot.com 8

  9. EDS Detailed Planning Define Transition Plan Traceability Matrix Example http://nodal.ercot.com 9

  10. Transition Plan Traceability Matrix Example Transition Plan Detail: 5.4.1(2a) ERCOT shall develop procedures for setup and data implementation requirements applicable to TSPs and QSEs. ERCOT shall with the assistance of TSPs and QSEs: Verify that all data and telemetry requirements specified in the nodal Protocols Section 3.10, Network Operations Modeling and Telemetry, have been met and that all data submittals are complete and represent an accurate model of the ERCOT System http://nodal.ercot.com 10

  11. Transition Plan Traceability Matrix Example (cont.) Requirement: ERCOT shall verify that all data and telemetry requirements have been met and that all data submittals are complete and represent an accurate model of the ERCOT System ERCOT Tasks: • Define data and telemetry verification plan based on NP 3.10 • Verify that all submittals are complete and represent an accurate model of the ERCOT system MP Tasks: • Review data and telemetry verification section of Market Trials Handbook • TSPs and QSEs assist ERCOT with data and telemetry verification Comments: • NP-Section 3.10, Network Operations Modeling and Telemetry • Requires NMMS to complete ITEST and in pre-production • Issue an EDS 1 RFP to verify that NMMS systems and processes meet section 3.10 of the ERCOT protocols > Each requirement will be further detailed in the EDS Detailed Market Trials Test Plan http://nodal.ercot.com 11

  12. EDS Detailed Planning Detail Market Trial Phases and Test Areas • Define the set of functionality for each EDS phase based on the transition plan, business requirements, SoSA documentation, etc. • Identify EDS phase for all functionality based on comprehensive release plan and project schedule. • Define testing scenarios and test plan outlines http://nodal.ercot.com 12

  13. EDS Detailed Planning Create Entrance / Exit Criteria Checklists http://nodal.ercot.com 13

  14. EDS Detailed Planning Define test cycles, MP segmentation, and test calendar • Testing cycles will be used to optimize the trials schedule and reduce resource conflicts by focusing on specific market areas with a reduced number of participants. • Participants will be logically segmented into appropriate cycles. • A weekly test calendar will be used to focus weekly activities. Multiple cycles may be scheduled in a single week or over multiple weeks. http://nodal.ercot.com 14

  15. EDS Detailed Planning Additional Areas • Outline Market Trials reporting requirements • Define Market Trials data requirements • Finalize Market Trial Phase critical inputs • Interface documentation • Requirements signoff • Design signoff • Market Operations Sandbox timelines http://nodal.ercot.com 15

  16. Next Steps • Request comments on Market Trials Approach by 12/6/06 • Return for approval in January • Begin EDS detailed planning providing opportunities for comments as follows: • Review Transition Plan Traceability Matrix TBD • EDS 1 to 4 Detailed Plan – Drafts for comment TBD • EDS 1 Detailed Plan – Final Signoff TBD • EDS 2 Detailed Plan – Final Signoff TBD • EDS 3 Detailed Plan – Final Signoff 3/30/2007 • EDS 3 Market Trials Handbook – Final Signoff 6/29/2007 • EDS 4 Detailed Plan – Final Signoff 9/28/2007 • EDS 4 Market Trials Handbook – Final Signoff 12/31/2007 http://nodal.ercot.com 16

  17. Questions? http://nodal.ercot.com 17

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

  19. SCADA Telemetry Schematic Analog RTU Status Accumulator Quality codes posted by TSP ERCOT Quality codes ERCOT EDS scope G H I J K D F TSP & QSE EMS SCADA ERCOT SCADA Equipment Statuses Phone Lines ICCP Link A CT ICCP ICCP Scaling Transducer (kWh) L E C PT B M N One-line Displays Mapping to network model QSE/TSP data accuracy assurance points by PE seal ERCOT data accuracy assurance points by PE seal http://nodal.ercot.com 19

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