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Wholesale Market Subcommittee (WMS) Jeremy Carpenter 2016 WMS Chair

Detailed update from the WMS and TAC meetings covering RT price events, SASM frequency, and system changes. Key issues addressed for ERCOT market operation.

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Wholesale Market Subcommittee (WMS) Jeremy Carpenter 2016 WMS Chair

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  1. Wholesale Market Subcommittee (WMS) Jeremy Carpenter 2016 WMS Chair Technical Advisory Committee (TAC) Meeting Report ERCOT Public March 31st, 2016 TAC Meeting

  2. Meeting Schedule • Last WMS meeting • March 2nd, 2016 • Next WMS meeting • April 6th, 2016 March 31st, 2016 TAC Meeting

  3. WMS Votes • 2016 SAWG Leadership • Endorsed (Unanimously) March 31st, 2016 TAC Meeting

  4. TAC Assignment Updates • High RT Price Event – 2/23 • Six active constraints affecting prices • High regulation component affecting GTBD • SCR 788 in process to better incorporate appropriate regulation feedback • High DAM RRS Price Event – 2/18 • RRS = $125/MWh • Energy = $.40/MWh • Lack of online resources offering RRS into DAM • Optimization evaluates cost of starting additional resource versus purchasing from expensive resources • Additional data will be presented at the April WMS meeting March 31st, 2016 TAC Meeting

  5. TAC Assignment Updates (cont’d) • High SASM Frequency and Prices • Majority of SASMs are due to Forced Outages • High prices reflect a lack of SASM offers in RT • Concern with leaving DAM offers active for SASM • Education of QSE Operators as to timeline of notification and submitting offers • ERCOT exploring changing submission timeline • Participation in Reconfiguration SASM • System changes done in the middle of last year to address issues with settlement • Zero participation since the system change • Education of QSE Operators needed about resolution of Initial system/settlement issues March 31st, 2016 TAC Meeting

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