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Luminant Enters Into Revised Voluntary Mitigation Plan

February 6, 2026

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Copyright 2026 EnergyChoiceMatters.com
Reporting by Paul Ring • ring@energychoicematters.com

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Luminant Energy Company LLC and Staff of the Public Utility Commission of Texas have entered into a settlement agreement for a revised voluntary mitigation plan (VMP) for Luminant.

The IMM for ERCOT supports the revised VMP

The VMP includes changes prompted by the implementation of RTC+B

Among other things, the parties agreed to add a defined term, "Opportunity Cost Adder," which allows for an adder to EOCs (Energy Offer Curves) and regulation ancillary service such that the offer reflects the full cost of dispatch of a resource at any given time so that the resource is not dispatched below cost when operations are restricted by factors outside of Luminant Energy’s control. The parties further agree that Luminant Energy will consult with the IMM either before an Opportunity Cost Adder is implemented or as soon as reasonably possible after said implementation.

The parties agreed to adopt offer caps for Non-Spin Reserve Service (NSRS), ERCOT Contingency Reserve Service (ECRS), Responsive Reserve Service (RRS), and Regulation Service offered in real-time from non-battery resources

The parties agreed to amend the VMP to specify that the negotiated terms adopted under the proposed VMP would apply to Luminant Energy’s current fleet of nuclear, coal, and natural gas fired units inclusive of resources subject to a signed SGIA but non-operational as of the date the VMP is approved and for which Luminant or an affiliate has a signed agreement for acquisition as of the date the VMP is approved.

Docket 59328

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