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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  
10/02/2026 M-C100226-01 RIOO Maintenance Release
10/02/2026 M-B100226-01 2026.NOV.Monthly.Auction
10/02/2026 M-A100226-01 RFP for NWS ERS-30, WS ERS-30, NWS ERS-10 and WS ERS-10 for the SCT of December 1, 2026, through March 31, 2027
10/01/2026 M-C100126-01 Notification of Suspension of Operations (NSO) for Gregory Power Partners LLC (LGE_LGE_GT1, LGE_LGE_GT2, LGE_LGE_STG)
10/01/2026 M-B100126-01 Upcoming training courses
10/01/2026 M-A100126-01 ERCOT System Operator Certification Exam Update
10/01/2026 R-A091026-02 Planned Maintenance Outage -Retail
09/30/2026 M-B093026-01 2027.1st6.AnnualAuction.Seq1
09/30/2026 M-A093026-01 Implementation Details of NOGRR226, Addition of Supplemental UFLS Stages, and NOGRR247, Change UFLS Stages and Load Relief Amounts
09/29/2026 W-A092926-01 Notice of final redistribution of the disgorged funds relating to Tenaska Power Services Co.'s (Tenaska) enforcement proceeding that were returned to Electric Reliability Council of Texas (ERCOT)
09/29/2026 M-A091026-03 Implementation of Market-facing changes for September 30, 2026, and October 01, 2026
09/29/2026 M-A091126-02 ERCOT Reliability Monitor Stakeholder Training
09/28/2026 M-A092826-01 Planned system maintenance with impacted services
09/28/2026 M-D092826-01 Implementation Details of NPRR1281 and NPRR1327 (Settlement-Related)
09/28/2026 M-E092826-01 ERCOT MOTE will be open for DST testing
09/25/2026 M-A092526-01 Notice of Stipulation and Agreed Order Resolving Distribution Amount and Dismissal of Appeal in Entrust Energy, Inc. bankruptcy case and expected ERCOT recovery on its claims.
09/24/2026 M-B091426-02 Voluntary State and Community Impact RFI Option for Newly Substantiated Medium Load Data Center Customers
09/22/2026 M-A092226-01 Resource Entity (RE) and Transmission Service Provider (TSP) winter weather preparedness workshop in person or by WebEx
09/21/2026 M-C092126-01 Batch Zero Verification and Community Impact RFIs: RIOO RFI Tool Update to Restrict Visibility of Other Respondents' Submissions, and Posting of Question Reference Guides on the ERCOT Website
09/21/2026 M-B092126-01 Notification of Suspension of Operations (NSO) for Blue Summit Storage LLC (BLSUMMIT_ESR1)
09/18/2026 M-B090126-02 REMINDER: 2026 MIS Access Audit Attestation (MAAA) Due by October 1, 2026
09/18/2026 M-A091026-02 Implementation of Market-facing changes for September 30, 2026, and October 01, 2026
09/16/2026 M-A091626-01 Resolution of NRG ADR proceeding (ADR No. 2026-NRG-01); Refund to be reflected in RTM True-Up Statements for Operating Day March 23, 2026
09/15/2026 M-D070826-02 Optional Survey for Batch 1+ and Comprehensive Transmission Planning initiative
09/14/2026 M-B091426-01 Issuance of Request for Information Regarding Data Center State and Community Impacts; ERCOT and PUC Partnership with Texas Water Development Board on Questions Related to Water Sources and Consumption