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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  
05/10/2026 R-A043026-04 Completion - Planned Maintenance Outage - Retail
05/08/2026 M-B050826-02 Multiple Settlement Invoices posted for May 7, 2026
05/08/2026 M-A050826-01 Implementation of Market-facing changes for May 27, 2026 and May 28, 2026
05/08/2026 R-A043026-03 Planned Maintenance Outage - Retail
05/08/2026 M-B050826-01 Multiple Settlement Invoices posted for May 7, 2026
05/06/2026 R-A043026-02 Planned Maintenance Outage - Retail
05/06/2026 M-A042826-03 Planned system maintenance with impacted services
05/06/2026 M-C042726-03 Planned system maintenance with impacted services
05/05/2026 M-A050526-01 Upcoming training courses
05/04/2026 M-A042826-02 Planned system maintenance with impacted services
05/04/2026 M-C042726-02 Planned system maintenance with impacted services
05/01/2026 M-C050126-01 Notification of Suspension of Operations (NSO) for Brownsville Public Utilities Board (SILASRAY_SILAS_6, SILASRAY_SILAS_9)
05/01/2026 W-A050225-02 Reminder - Requirement to submit dynamic models compatible with PSS/E version 36 prior to June 1, 2026
05/01/2026 M-A050126-01 Implementation Details of NPRR 1265, Unregistered Distributed Generator
05/01/2026 M-B050126-01 2026.JUN.Monthly.Auction
04/30/2026 M-A043026-01 Counter-Party quarterly unaudited financial statements due by May 29, 2026
04/30/2026 R-A043026-01 Planned Maintenance Outage - Retail
04/29/2026 M-A033126-03 Removal of redirected URLs for Legacy Dashboards and/or Displays
04/29/2026 M-B042926-01 Reminder: Interconnecting TSPs to submit Large Load data for Quarterly Stability Assessment by deadlines specified in Planning Guide 5.3.5(2)
04/29/2026 M-A042926-01 2027.1st6.AnnualAuction.Seq2
04/29/2026 M-A040126-02 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM) - REMINDER
04/29/2026 M-A040326-03 Implementation of Market-facing changes for April 29, 2026 and April 30, 2026
04/29/2026 R-A031826-03 Retail Market Qualification Testing (Flight 0626) begins May 12, 2026, registration deadline of May 6, 2026
04/28/2026 M-A042826-01 Planned system maintenance with impacted services
04/28/2026 M-C042826-01 Notification of Change of Generation Resource Designation (NCGRD) for GEUS (STEAM1A_STEAM_1)