NOTICE DATE: April 10, 2026

NOTICE TYPE: M-B040326-02 Reports

SHORT DESCRIPTION: 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files - Supplemental files available 04/10/2026

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: Operating Days (OD) December 5, 2025 - February 2, 2026

LONG DESCRIPTION: ERCOT has posted the supplemental files for the issues previously communicated in M-B040326-01, regarding the NP3-965-ER 60-Day Security-Constrained Economic Dispatch (SCED) Disclosure Report (Rpt. ID 13052), to the ERCOT website for OD December 5, 2025 through OD February 2, 2026.

The supplemental file is specific to the impacted ODs for the 60-Day SCED Resource AS Offers output files:

• 60d_SCED_Resource_AS _Offers_02032026_thru_03062026_SUPPLEMENTAL

ADDITIONAL INFORMATION: As of April 4, 2026, all posted files contain the accurate sets of data. The supplemental files created and posted April 10, 2026 were only for the impacted output file type.  All other output files were unaffected.

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 ClientServices@ercot.com.

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