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Nodal Advisory Task Force

Nodal Advisory Task Force. Update for TAC July 1 st , 2010. TAC Update from Nodal ATF. Met June 23 rd Had significant agenda items sent over from QMWG, WMS, & PRS. Next few meetings scheduled for: Thursday, July 8, 2010 Thursday, July 29, 2010 Monday, August 9, 2010

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Nodal Advisory Task Force

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  1. Nodal Advisory Task Force Update for TAC July 1st, 2010 http://www.ercot.com/committees/board/tac/natf/ 1

  2. TAC Update from Nodal ATF Met June 23rd Had significant agenda items sent over from QMWG, WMS, & PRS. Next few meetings scheduled for: Thursday, July 8, 2010 Thursday, July 29, 2010 Monday, August 9, 2010 Thursday, August 19, 2010 Tuesday, August 31, 2010 Tuesday, September 14, 2010 Tuesday, September 28, 2010 Meetings http://www.ercot.com/committees/board/tac/natf/ 2

  3. TAC Update from Nodal ATF TSP Model Go Live Protocols call for 30 day and 10 day notice. ERCOT management looking for approval from TAC and Board this month – Asking TAC to consider a conditional notice, so can start 30 day, and by 10 day notice, NATF will have met several times. Trying to start 30 day clock soon. Several TSP Participants provided feedback to ERCOT regarding performance issues limiting their ability to get the Network Model updates according to the time line. ERCOT has high priority variances against the NMMS Vendor. ERCOT to provide whitepaper on Interim Updates to the Network Model. QSEs expressed concern that ERCOT compliance incentives for TSPs may negatively impact the quality of the Network Model used for CRRs, DAM, SCED in RT, and EMS. Outage Scheduler Go Live Presented 2 options for how to handle outages in Nodal Market Trials, bring them over from Zonal. A hybrid of the 2 options was recommended by NATF and ERCOT is bringing the write-up back to NATF on July 8th. Agenda Item 4 4. Nodal Go Live Update K. Ragsdale • Review of TSP Model Go Live (Possible Vote) B. Blevins • Review Outage Scheduler Go Live (Possible Vote) http://www.ercot.com/committees/board/tac/natf/ 3

  4. TAC Update from Nodal ATF COP Expectations Whitepaper Whitepaper is posted and ERCOT needs Comments by June 30th (Yesterday). Please provide any feedback you have ASAP. Agenda Item 6 6. COP Expectations Whitepaper K. Ragsdale http://www.ercot.com/committees/board/tac/natf/ 4

  5. TAC Update from Nodal ATF 8-Hour LFC Test Recap http://www.ercot.com/calendar/2010/06/20100623-NATF07. lfc_natf_06232010.ppt Agenda Item 7 7. 8-Hour LFC Test Recap S. Middleton http://www.ercot.com/committees/board/tac/natf/ 5

  6. TAC Update from Nodal ATF NPRR207 - Unit Deselection (formerly “Hour Start Unit Deselection and Half Hour Start Unit RUC Clawback”) – Review of Draft Deselection Procedure (Possible Vote) With two abstentions from the Independent Power Marketer (IPM) and Independent Retail Electric Provider (IREP) Market Segments, NATF voted to endorse the Reliability Unit Commitment (RUC) desk procedure [relating to NPRR207] as revised by language provided by Luminant, Reliant Energy, and Topaz Power. NPRR had been tabled by TAC awaiting the Desk Procedure. NPRR240 - Proxy Energy Offer Curve (Possible Vote) Hearty discussion. IMM Mr Jones promised to make additional comments for WMS consideration. No Motion. NPRR220, Nodal Requirement of Declaring an EEA for Reserves More than 500 MW More discussion, no decision made, WMS will handle. Mr Blevins will facilitate w/ WMS. No motion. NPRR234, Resolution of Alignment Item A32, A147, A155, A159, and A187 - Clarify General Capacity Testing and Net Dependable Capability Withdrawn. Agenda Item 11 11. Other Business from Stakeholder Groups • WMS Meeting – June 16, 2010 • PRS Meeting – June 17, 2010 http://www.ercot.com/committees/board/tac/natf/ 6

  7. TAC Update from Nodal ATF NPRR169 - Clarify the Calculation and Posting of LMPs for the Load Zone and LMPs for each Hub Passed March 2010. Planned Implementation July 23rd. Certificates for non-participant entities. Access via certificate to the Nodal MIS secure area for consultants, universities, consumers, etc. Is the best solution to address the problem an NPRR? added Agenda Items and… Additional Agenda Items • NPRR169 N. Richard • Certificates for Consultants S. Saddiqqi http://www.ercot.com/committees/board/tac/natf/ 7

  8. TAC Update from Nodal ATF FUTURE AGENDA ITEMS: • LFC Tests – Need for more testing Tie DAM & RT test results together Frequency of the tests Additional scenarios not encountered in LFC Explanation of Hub versus Load Zone Pricing Initial Review of TAC Approved Go-Live Items Publication of the Redacted Network Operations Model Interim Updates to the Network Operations Model Ratings (dynamic & static) SPSs & RAPs • Difference between DAM and RT processes DAM vs RT Mitigation Competitive Constraints Penalty Factors • Availability of the MOTE environment running DAM for test submissions • 168-Hour Test Review • Competitive Constraint Test Values • PCAPs Other Business from Stakeholder Groups NATF will adopt a concept of triage to collate multiple questions/issues into categories and assign criticality and through NATF first for assignment. Expected to reduce impact on ERCOT Nodal team. Future Agenda Items http://www.ercot.com/committees/board/tac/natf/ 8

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