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PLWG Update: Key Activities and Action Items - October 5, 2023

ERCOT and stakeholders are actively engaged in discussions and planning related to new NERC requirements, SOL methodologies, congestion cost savings tests, and dynamic model reviews. Updates include retirement and replacement timelines for key methodologies, proposed consumer benefits test for transmission upgrades, and ongoing actions on various PGRRs and NPRRs. Stakeholders are working towards resolving concerns and submitting comments for further discussion in upcoming meetings.

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PLWG Update: Key Activities and Action Items - October 5, 2023

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  1. Planning Working Group Update To Reliability and Operations Subcommittee Alexandra Miller, PLWG Chair Dylan Preas, PLWG Vice-Chair October 5, 2023

  2. PLWG Activity Update – 9/19/23 • ERCOT New SOL Methodology and NERC FAC-014-3 R7 Requirements • Kiran Nandigam (ERCOT) provided an update. • NERC FAC-010-3 SOL Methodology for the Planning Horizon will be retired on March 31, 2024. • NERC FAC-011-3 SOL Methodology for the Operations Horizon will be replaced with FAC-011-4 on April 1, 2024. • NERC FAC-014-2 Establishing and Communicating SOL and SOL Information will be replaced with FAC-014-3 on April 1, 2024. • NERC FAC-011-4 R7 will require ERCOT and TSPs to communicate certain information about CAPs developed to “address any instability identified in its Planning Assessment of the Near-Term Transmission Planning Horizon”. • ERCOT Congestion Cost Savings Test Discussion – Jack Moore, E3 • PUCT directed ERCOT to create a consumer benefits test for evaluating the economic benefits of a transmission upgrade. This test will complement the existing production cost savings test. • E3 recommends that ERCOT adopt the System-Wide Gross Load Cost Test. This test directly estimates the effect of transmission upgrades on energy costs to ERCOT load by calculating how the upgrade changes wholesale market prices paid at ERCOT load nodes • ERCOT will submit Revision Requests to implement the recommendation.

  3. PLWG Activity Update – 9/19/23 • PGRR 109 – Dynamic Model Review Process Improvement for IBR Modification • Kristin Cook (Southern Power) shared that stakeholders are planning to file comments in the next few weeks. In general, stakeholders hope the proposed changes will resolve stakeholder concerns (e.g., broadness of “any changes” language, data submission and review timelines) while still accomplishing ERCOT objectives. • Group had active discussion of concerns. • Stakeholders plan to file comments with suggested edits and issue was tabled until October meeting.

  4. PLWG – Open Action Items • PGRR107 – (Related to NPRR 1180) – Inclusion of Forecasted Load in Planning Analyses • Issue remains tabled pending ERCOT comments on NPRR 1180. • NPRR1180 – Inclusion of Forecasted Load in Planning Analyses • ERCOT and Oncor plan to submit comments. • Issue remains tabled • NPRR1070 – Planning Criteria for GTC Exit Solutions • Remains tabled as ERCOT expects protocol revision language discussion to resume in October with implementation of E3 study results for congestion cost savings test

  5. Questions?

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