ERCOT Congestion Management Updates & Next Meeting Agenda

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Stay informed on the latest developments from the ERCOT Congestion Management Working Group, including discussions on curtailed generation, shadow price caps, and dynamic rating transparency. Explore the upcoming agenda for the May meeting covering topics like constraint management processes and spatial granularity of solar production. Don't miss out on key insights shaping the energy industry.

  • ERCOT
  • Congestion Management
  • Energy Industry
  • Meeting Agenda
  • Generation

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Presentation Transcript


  1. Congestion Management Working Group MAY 5, 2021 KATIE RICH, CHAIR ANDY NGUYEN, VC

  2. TAC Emergency Conditions Item No. 86 o Review constraint management process during EEA3: How much generation was curtailed for congestion including GTCs during EEA3? oERCOT to determine amount of curtailed generation oBetter understand curtailments at the time interrupting firm load oDetermine tie to NERC-EOP-011

  3. OBDRR 026, Change Shadow Price Caps to Curves and Remove Shift Factor Threshold o CMWG focused on three points related to the transmission demand curve: oReview the impact on irresolvable constraints oReview the language on the irresolvable constraint threshold oReview the impact on congestion o At the May meeting, ERCOT will provide data on how often post contingency overloads would exceed $1000 but not exceed 102% o Comments were filed by DC Energy on April 28 stating that: oConstraints under a 102% flow exceedance may become and stay violated when there is a market solution available under the now existing Shadow Price Caps oAs a result, the increase in constraint violations would in turn lead to more frequent triggering of the irresolvable constraint threshold in current Section 3.6.1 of the Methodology for Setting Maximum Shadow Prices for Network and Power Balance Constraints

  4. NPRR 1063, Dynamic Rating Transparency o CMWG discussed the need for language revisions to align the NPRR language with the sample report provided by ERCOT o Following the meeting, DC Energy filed comments on April 21 o ROS endorsed the NPRR with DC Energy s comments on April 29

  5. Next Meeting: May 10 o Item No. 86 - Review constraint management process during EEA3: How much generation was curtailed for congestion including GTCs during EEA3? oRequest at TAC to also understand how load shed may have contributed to congestion limitations o OBDRR 026, Change Shadow Price Caps to Curves and Remove Shift Factor Threshold o Spatial granularity of solar production and forecasts oCurrently at the system-wide level, but there s been a request to breakout by load zone

  6. Questions?

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