NOTICE DATE: November 5, 2022

NOTICE TYPE: M-A110522-01

SHORT DESCRIPTION: Issue identified with the Day-Ahead Market (DAM) Operating Day (OD) 11/6/2022 Ancillary Service (AS) Awards

INTENDED AUDIENCE: ERCOT QSEs

DAYS AFFECTED: November 6, 2022

LONG DESCRIPTION: ERCOT identified an issue with some published Ancillary Service (AS) Award MW amounts for OD 11/06/2022. The Daylight Saving Time (DST) transition triggered an issue with the DAM AS Awards, due to the repeated hour. ERCOT will republish the AS awards as the original batch has incorrect or missing MW amount values for some hours.  Market participants should review their AS Awards to determine if this issue has impacted their awarded amounts. Market Clearing Prices for Capacity (MCPCs) were not impacted.

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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dsl