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Commission Issues Order Adopting New §25.508 Reliability Standard Rule
“The Public Utility Commission of Texas (commission) adopts new §25.508, relating to Reliability Standard for the ERCOT Region, with changes to the proposed text as published in the June 28, 2024 issue of the Texas Register (49 TexReg 4678). The rule implements Public Utility Regulatory Act (PURA) §39.159(b)(1) as revised by Section 18 of Senate Bill (S.B.) 3 during the Texas 87th Regular Legislative Session. This rule creates a reliability standard for the Electric Reliability Council of Texas (ERCOT) power region and identifies a process for the commission to review whether the ERCOT system is meeting that standard. This new section is adopted under Project Number 54584.”
The rule will be effective on September 29, 2024.
As background, the commission invited interested parties to address two questions related to including exceedance tolerances in the reliability standard’s metrics.
What are the advantages and disadvantages of enshrining an exceedance tolerance for magnitude and duration in the commission’s rule?
Should the exceedance tolerance be evaluated more frequently than the reliability standard? If so, what is the appropriate frequency?
Order Adopting New §25.508 Reliability Standard Rule
54584 (Opened 09/09/2024)
(Reliability Standard For The ERCOT Market)
