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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  
02/23/2026 M-A022326-01 Large Load Interconnection Studies update for Far West Texas region
02/23/2026 M-B022326-01 Planned system maintenance with impacted services
02/20/2026 R-A022026-01 Planned Maintenance Outage - Retail
02/20/2026 M-A011626-02 NPRR1287, Revision to Outage Coordination, will be implemented on March 26, 2026. Enhancements to the ERCOT Outage Scheduler will be delayed until March 26, 2026.
02/19/2026 M-B021926-01 ERCOT's External Web Services Secure Sockets Layer certificate renewal
02/19/2026 M-A021926-01 Implementation Details of NPRR1277, Revisions to EAL Formula
02/18/2026 M-A021826-01 60-Day SCED Disclosure Report: Missing Telemetered Ancillary Service Capability data for RRS
02/17/2026 M-A021726-01 Implementation Details of NPRR1266, Opt-Out Status Held by a Transmission-Voltage Customer Cannot be Transferred
02/17/2026 M-A122325-05 Large Load Batch Study Process Workshop #3 on February 26, 2026
02/16/2026 M-B012826-02 UPDATE: 2028.1st6.AnnualAuction.Seq5 transaction limits
02/16/2026 W-B020226-02 2025 Generation Information Reporting Requirement for Renewable and Green Energy Verification
02/16/2026 M-A020326-02 Implementation of Market-facing changes for February 26, 2026
02/13/2026 W-A021326-01 Settlement for the ERS Standard Contract Term of October 01, 2025 - November 30, 2025
02/13/2026 M-B021326-01 Impacts to Generic Transmission Constraint Limits in the Day-Ahead Market due to a software issue.
02/13/2026 M-A021326-01 Back-up control plans due by March 15, 2026
02/12/2026 M-B021226-01 Notice of PUCT Electric Service Emergency Operations Plan (EOP) filings and related documents under 16 TAC 25.53
02/12/2026 M-A021226-01 Review of end-use industry classification for Load Points meeting the criteria in paragraphs (15)(c) and (17)(c) of Protocol Section 3.10.7.2, Modeling of Resources and Transmission Loads
02/11/2026 M-B021126-01 ERCOT RFI for Load Forecast Information Regarding Medium and Large Loads
02/11/2026 M-A021126-01 Potential Price Correction - Incorrect consideration of Reliability Must Run Units for Reliability Deployment Price Adder
02/10/2026 M-B021026-01 Notice of ERCOT Reliability Monitor (ERM) Compliance Audit
02/08/2026 R-A011626-04 Completion - Planned Maintenance Outage
02/06/2026 M-B020626-01 60-Day SCED Disclosure Report corrections for 02/03/2026 and 02/04/2026 postings
02/05/2026 M-C020426-02 2027.2nd6.AnnualAuction.Seq4 results posting and credit release
02/05/2026 M-A020526-01 Potential Price Correction - SCED Incorrectly Determined Qualifying Facility Output Schedules
02/05/2026 R-A011626-03 Planned Maintenance Outage - Retail