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December 5, 2025

ERCOT Technical Advisory Committee (TAC)

ERCOT
ERCOT Stakeholders Endorse $9.4B 765-kV Build
ERCOT stakeholders endorsed a 1,109-mile, single-circuit 765-kV backbone project that is projected to cost nearly $9.4 billion in capital costs, making it the largest initiative in decades.
ERCOT
Large Loads Slow to Interconnect in ERCOT
ERCOT's Technical Advisory Committee discussed the grid operator's approach to large loads, as staff said they are tracking over 200 GW in large-load interconnection requests.
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ERCOT Stakeholders Endorse 2026 AS Methodology
ERCOT stakeholders, while raising concerns over the grid operator’s use of conservative operations, have endorsed staff’s recommendations for computing minimum ancillary service quantities for 2026.
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ERCOT TAC Approves Tabled Curtailable Load NPRR

ERCOT stakeholders approved a protocol change that would register loads that can be curtailed under certain system conditions.

ERCOT
ERCOT’s TAC Extends Duration of Ancillary Services

ERCOT stakeholders advanced a protocol change that provides longer-duration ancillary services and state-of-charge parameters, among several other voting items, during their last TAC meeting.

ERCOT
ERCOT’s TAC Endorses Congestion Management Plan
ERCOT stakeholders endorsed a protocol change that creates a process to compensate market participants when a constrained management plan or switching instruction trips a generator that otherwise would have stayed online.
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ERCOT Technical Advisory Committee Briefs: March 26, 2025
ERCOT stakeholders have endorsed several protocol changes related to the ISO’s real-time co-optimization project, keeping on track a project seen as a cornerstone for future market improvements.
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ERCOT Technical Advisory Committee Briefs: Nov. 20, 2024
ERCOT stakeholders have approved a pair of protocol changes related to transmission planning as the Texas grid operator continues to grapple with connecting incoming load to its system.
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ERCOT Technical Advisory Committee Briefs: Sept. 19, 2024
ERCOT stakeholders have endorsed changes to the grid operator's ancillary services methodology as part of the annual process to determine the minimum amount of products that will be procured in 2025.
ERCOT
ERCOT Technical Advisory Committee Briefs: Aug. 28, 2024
ERCOT says it may move up the real-time co-optimization project’s go-live date from its previous September 2026 target, welcome news about a mechanism that will be integral to the future market design.

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