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Market Notice Archives

ERCOT sends Market Notices to publicly subscribed email distribution lists as required in the protocols and other binding documents for scheduled releases, outages, business process failures, and other general information.

This section contains a three year archive of Market Notices.  Archive searches may be performed by Category, Date Range, and Keywords, or a combination of these criteria. For Market Notices older than three years, select the mailing list you are interested in from Market Notice Email Distribution Lists.

Search Market Notices

Search for Market Notices within the past three years.

Date   Subject  
10/30/2026 M-B103026-01 Dashboards affected by end of Daylight Saving Time (DST) October 31 - November 2, 2026
10/30/2026 M-A093026-03 Implementation Details of NOGRR226, Addition of Supplemental UFLS Stages, and NOGRR247, Change UFLS Stages and Load Relief Amounts
10/30/2026 M-A103026-01 Counter-Party quarterly unaudited financial statements due by November 30, 2026
10/29/2026 M-C100126-02 Reliability analysis determination for Gregory Power Partners LLC (LGE_LGE_GT1, LGE_LGE_GT2, LGE_LGE_STG)
10/28/2026 M-A102826-01 2027.2nd6.AnnualAuction.Seq2
10/28/2026 R-A100826-02 Planned Maintenance Outage - Retail
10/28/2026 M-B101526-02 Implementation Details of NPRR1198, Congestion Mitigation Using Topology Reconfigurations, and related NOGRR258 and PGRR113
10/26/2026 M-A100826-02 ERCOT has elected to opt out of conducting a reliability analysis for HEN Infrastructure LLC (COYOTSPR_ESR1)
10/26/2026 M-B102626-01 Planned system maintenance with impacted services
10/26/2026 M-A102626-01 Planned system maintenance with impacted services
10/26/2026 M-A101226-03 Implementation of Market-facing changes for October 28, 2026, and October 29, 2026
10/23/2026 M-B102326-01 Market Participants (MPs) using shared email addresses for Authorized Representatives (ARs) and Backup ARs must submit a Notice of Change of Information (NCI) before NPRR1302 is implemented.
10/23/2026 M-A102326-01 2026.DEC.Monthly.Auction
10/22/2026 W-A102226-01 New Nueces County 138 kV (NUECES) Generic Transmission Constraint (GTC)
10/21/2026 M-A102126-01 Error Identified in Settlement System for Settlement-Only Generators
10/21/2026 M-B102126-01 Settlement extract posting schedule issues have been resolved and will now adhere to the required delivery timeline.
10/20/2026 M-A093026-02 Implementation Details of NOGRR226, Addition of Supplemental UFLS Stages, and NOGRR247, Change UFLS Stages and Load Relief Amounts
10/20/2026 M-A102026-01 Request for data concerning Demand Response capabilities - Q3 2026
10/19/2026 M-B092126-02 Reliability analysis determination for Blue Summit Storage LLC Battery (BLSUMMIT_ESR1)
10/19/2026 M-A101926-01 Update to Transmission-Voltage Customers Opt-Out List Maintained Pursuant to PURA section 39.653(d)
10/19/2026 M-A101226-02 Implementation of Market-facing changes for October 28, 2026, and October 29, 2026
10/19/2026 W-A101926-01 Resettlement for the ERS Standard Contract Term of December 01, 2025 - March 31, 2026
10/16/2026 M-A101626-02 PUCT hosting Weather Emergency Preparedness and Emergency Operations Plan (EOP) Workshop 12/08/2026
10/16/2026 M-A101626-01 PUCT hosting Weather Emergency Preparedness and Emergency Operations Plan (EOP) Workshop 12/08/2026
10/16/2026 M-D092826-02 Implementation Details of NPRR1281 and NPRR1327 (Settlement-Related)