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PUC Opens Project To Review Wholesale Market Power In ERCOT
The Public Utility Commission of Texas (PUCT) has created Project 58379 to review §25.504 – Wholesale Market Power in the ERCOT Region. No further documents have been filed in this newly created project.
As background, among other provisions, §25.504 includes the “small fish swim free” rule.
The small fish swim free rule, at 16 TAC § 25.504(c), provides that a generator that has less than 5% market share is deemed not to have ERCOT-wide market power.
Project 58379 (07/14/2025)
(Review of §25.504 – Wholesale Market Power in the ERCOT Region)

