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NOTICE DATE: May 28, 2021

NOTICE TYPE: M-C052821-01 Operations

SHORT DESCRIPTION: Notice of issue with the Short-Term System Adequacy Report postings


DAYS AFFECTED: May 28, 2021

LONG DESCRIPTION: ERCOT has identified an issue in the Short-Term System Adequacy Report (EMIL ID - NP3-763-CD, Report ID 12315) following the 2021-R3 release yesterday, 05/27/2021. The following columns added to implement the changes from NPRR974, Capacity Insufficiency Operating Condition Notice (OCN) Transparency and NPRR978, Alignment with Amendments to PUCT Substantive Rule 25.505 have been identified as having inaccurate data. ERCOT is working on a fix for the identified issues and will provide a follow up Market Notice once these are resolved.

The specific columns affected are as follows:

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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