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.

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Recent Market Notices

These notices were sent within the last 30 days.

Date Subject
12/04/2020 R-A120420-01 Informational: Increased volume of 814_24 Move- Out Requests are bypassing valid Continuous Service Agreements (CSAs)
12/03/2020 M-A120320-01 RFP for NWS ERS-30, WS ERS-30, NWS ERS-10 and WS ERS-10 for the SCT of February 1, 2021, through May 31, 2021
12/02/2020 M-A120220-01 Request for known outage(s) with a duration of at least six months to address NERC Reliability Standard TPL-001-4
12/02/2020 M-B120220-01 Notification to Submit Emergency Operations Plans
12/02/2020 M-C120220-01 PST optimization in CRR Auctions
12/01/2020 M-A120120-01 Draft ERCOT report on estimating the Market Equilibrium and Economically Optimal Reserve Margins available for public review and comment
12/01/2020 W-A120120-01 Notification of Suspension of Operations (NSO) for Wharton County Generation, LLC (TGF_TGFGT_1)
11/30/2020 M-A111020-02 Implementation of Market-facing changes for December 2020
11/30/2020 W-A113020-01 2020 Winter and 2021 Spring Seasonal Voltage Profiles
11/30/2020 W-A113020-01 Implementation of maximum Shadow Price for an irresolvable constraint in SCED
11/30/2020 W-B113020-01 Notification of Suspension of Operations (NSO) for Luminant Generation Company LLC (TRSES_UNIT6)
11/25/2020 M-A021920-02 Partial implementation details of NPRR978
11/25/2020 M-A112520-01 Implementation Details of SCR 806
11/25/2020 M-B112520-01 2022.1st6.AnnualAuction.Seq3 CRR Auction
11/25/2020 M-C112520-01 2021.JAN.Monthly.Auction
11/23/2020 M-A112320-01 Market Management and Outage Scheduler Systems/Applications Technical Refresh
11/22/2020 M-A111220-04 Planned Maintenance Outage - Completion
11/20/2020 M-A101620-02 Implementation details of PGRR078
11/20/2020 M-A111220-03 Reminder - Planned Maintenance Outage
11/20/2020 M-A111620-02 Reminder - ERCOT MOTE System Unavailable for Testing Monday, November 23, 2020 from 17:00 through 19:00
11/20/2020 M-A112020-01 Revised 2019 AML data posted for each LSE
11/19/2020 M-A111220-02 Reminder - Planned Maintenance Outage
11/19/2020 M-A111920-01 ERCOT Settlements Timeline for 2020 Holiday Period
11/19/2020 W-A100917-04 Update - Revised Proposal to Modify Mitchell Bend Remedial Action Scheme (RAS)
11/18/2020 R-A111720-02 Final Retail transaction processing issues reported on November 17, 2020 have been resolved.
11/17/2020 M-A102620-02 Update - Total Potential Exposure (TPE) calculations affected by system issues
11/17/2020 R-A111720-01 Retail transaction processing issues
11/17/2020 W-A103020-02 Reminder of Upcoming Submission Period for Declarations of Completion of Generation Resource Weatherization Preparations
11/16/2020 M-A111620-01 ERCOT MOTE System Unavailable for Testing Monday, November 23, 2020 from 17:00 through 19:00
11/16/2020 M-D111220-02 Reminder - Planned system maintenance with impacted services
11/13/2020 M-C111220-02 Reminder - Planned system maintenance with impacted services
11/12/2020 M-A011120-01 Reminder - Planned Maintenance Outage
11/12/2020 M-B111220-01 Goods or services provided to ERCOT employees by Market Participants
11/12/2020 M-C111220-01 Planned system maintenance with impacted services
11/12/2020 M-D111220-01 Reminder - Planned system maintenance with impacted services
11/12/2020 W-A090120-04 Reminder - Resource Integration and On-going Operations-Resource Services (RIOO-RS) November Release
11/12/2020 W-A101920-02 Retirement of Barney Davis Remedial Action Scheme
11/12/2020 W-A111220-01 New Pig Creek - Solstice (PIGSOL) Generic Transmission Constraint (GTC)
11/11/2020 M-A070820-16 Board-Approved Price Correction (Transformer Ratings Issue) - CRR Balancing Account Resettlement for June 2020
11/11/2020 M-A101220-04 The Market Information System (MIS) redesigned site is now live INTENDED AUDIENCE: All Market Participants
11/10/2020 M-A101220-03 Reminder - ERCOT to release the redesigned Market Information System (MIS) to the Production Environment
11/10/2020 M-A111020-01 Implementation of Market-facing changes for December 2020
11/09/2020 W-A110920-01 Security update to https://gateway.ercot.com
11/06/2020 M-A091620-03 Update - Revised Proposal to Retire Morgan Creek Remedial Action Scheme (RAS)
11/05/2020 M-A070820-15 Board-Approved Price Correction (Transformer Ratings Issue) – Real-Time Market (RTM) Resettlement for Operating Day (OD) July 1, 2020
11/05/2020 M-A082720-03 Board-Approved Price Correction (RAS Modeling Issue) - Day-Ahead Market (DAM) Resettlement for Operating Days (ODs) August 20, 21 and 23, 2020
11/04/2020 M-A110420-01 New Zapata - Starr (ZAPSTR) Generic Transmission Constraint (GTC)
11/04/2020 W-A050420-03 Update to the Generic Limits for the Nelson Sharpe - Rio Hondo, Lobo - North Edinburg Generic Transmission Constraint (GTC) and Creation of a new Valley Export GTC and associated Generic Limits.