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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  
05/20/2026 M-A051526-02 Test of ERCOT.com performance and ERCOT's automated emergency notification system
05/20/2026 M-A050126-02 Implementation Details of NPRR1265, Unregistered Distributed Generator
05/19/2026 M-A051926-01 Revised 2024 AML data posted for each LSE - 2026 QTR3
05/18/2026 M-A051826-01 Generation Capacity Information in Lieu of May 2026 Report on Capacity, Demand, and Reserves in the ERCOT Region (CDR)
05/18/2026 M-B051826-01 Proposal to Adjust 2026 Long-Term Load Forecast
05/18/2026 M-A050826-02 Implementation of Market-facing changes for May 27, 2026, and May 28, 2026
05/15/2026 M-A051526-01 Test of ERCOT.com performance and ERCOT's automated emergency notification system
05/14/2026 W-A051426-01 Proposal to Modify the Horse Hollow Generation Tie RAS
05/12/2026 M-A051226-01 Seasonal Variability Change in the Look-Back Period for RTLE of EAL Component
05/12/2026 R-A051226-01 Planned Maintenance Outage - Retail
05/11/2026 M-A051126-01 MOTE Testing - DPC Dashboard - Transmission Operator Testing of DPC Submission Form
05/11/2026 W-A051126-01 2026 Geomagnetic Disturbance Plan has been posted
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