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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  
04/08/2026 M-A033026-03 Planned system maintenance with impacted services
04/08/2026 M-C033026-03 Planned system maintenance with impacted services
04/08/2026 R-A031826-02 Retail Market Qualification Testing (Flight 0626) begins May 12, 2026, application processing deadline of April 15, 2026, and a registration deadline of May 6, 2026.
04/06/2026 M-A040626-01 Annual Under-Frequency Load Shedding (UFLS) survey of Transmission Operators
04/06/2026 M-C033026-02 Planned system maintenance with impacted services
04/06/2026 M-A033026-02 Planned system maintenance with impacted services
04/03/2026 M-C040326-01 Impacts to SCED due to Market database connectivity issues
04/03/2026 M-B040326-01 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files
04/03/2026 M-A040326-01 Implementation of Market-facing changes for April 30, 2026
04/02/2026 M-A040226-01 RFP for NWS ERS-30, WS ERS-30, NWS ERS-10 and WS ERS-10 for the SCT of June 1, 2026, through September 30, 2026
04/02/2026 R-A031226-02 Planned Maintenance Outage - Retail
04/01/2026 M-B040126-01 Incorrect Reliability Unit Commitment (RUC) Opt- Out Snapshot Logic Issue Identified
04/01/2026 M-D040126-01 Upcoming training courses
04/01/2026 R-A040126-01 Posting of 2025 Texas Renewable Content Calculator for Reporting in 2026
04/01/2026 M-A040126-01 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM)
03/31/2026 M-B033126-01 Counter-Party Annual Audited Financial Statements and Risk Certification due April 30, 2026
03/31/2026 M-A033126-01 Removal of redirected URLs for Legacy Dashboards and/or Displays
03/30/2026 M-C033026-01 Planned system maintenance with impacted services
03/30/2026 M-A033026-01 Planned system maintenance with impacted services
03/30/2026 W-A033026-01 Update Generic Limits for the Panhandle Generic Transmission Constraint (GTC)
03/27/2026 M-B032726-01 Stale Shift Factors and Constraints in SCED
03/27/2026 M-A032726-01 Stale values for Generation and Constraint Shift Factor Data used in the Real-Time Market
03/27/2026 M-C032726-01 2026.MAY.Monthly.Auction
03/25/2026 M-E032526-01 2026 Annual Constraint Management Plans Review
03/25/2026 M-F032526-01 Removal of historical data from the CRR system