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
02/24/2021 M-A021921-02 Exceptional Fuel Costs submitted for multiple Resources between February 17 and 20, 2021
02/24/2021 M-A022421-01 CRR 2023.2nd6.AnnualAuction.Seq6 CRR Auction
02/24/2021 M-B022421-01 ERCOT 2021 DST testing Information
02/24/2021 M-C022421-01 IDR Meter Settlements
02/24/2021 W-A022421-01 Short payments for failure to make Invoice payments by Market Participants
02/23/2021 M-A022221-02 ERCOT has ended its temporary deviation from Protocol deadlines and timing related to settlements, collateral obligations, and invoice payments
02/23/2021 M-A022321-01 ERCOT Discretion to Resolve Financial Obligations
02/23/2021 M-C021221-03 Update: TCEQ Notice of Enforcement Discretion
02/23/2021 W-A021921-02 Payout due to ERCOT’s receipt of outstanding payments
02/22/2021 M-A011121-04 Decommission of the Market Information System Portlet Site date changed to February 24, 2021
02/22/2021 M-A022221-01 ERCOT is temporarily deviating from Protocol deadlines and timing related to settlements, collateral obligations, and Invoice payments
02/22/2021 M-B022221-01 Authorization to Disclose Certain Resource-Specific Outage Information
02/19/2021 M-A020121-02 Update: Cancellation of Implementation Workshop for NPRR902, ERCOT Critical Energy Infrastructure Information
02/19/2021 M-A021921-01 Exceptional Fuel Costs submitted for multiple Resources between February 12 and 16, 2021
02/19/2021 M-B021921-01 Collateral Adjustments and Invoice Payments
02/19/2021 M-C021221-02 TCEQ Notice of Enforcement Discretion for Extreme Cold Weather System Event – REMAINS IN EFFECT
02/19/2021 M-C021521-05 Update: ERCOT Expectations Regarding Exiting EEA3 and Public Utility Commission Emergency Orders Affecting ERCOT Market Prices
02/19/2021 W-A021921-01 Short payment for failure to make Invoice payment by Market Participants
02/19/2021 W-B021921-01 Implementation of maximum Shadow Price for an irresolvable constraint in SCED
02/19/2021 W-B021921-02 Re-evaluation of maximum Shadow Price for an irresolvable constraint in SCED
02/18/2021 M-A021821-01 Exceptional Fuel Costs submitted for nine Resources on 2/11/2021
02/18/2021 M-C021521-04 Update: ERCOT Expectations Regarding Exiting EEA3 and Public Utility Commission Emergency Orders Affecting ERCOT Market Prices
02/17/2021 M-A021721-01 Proposal to Retire Culberson Loop RAS
02/17/2021 M-C021521-03 Update: Public Utility Commission Emergency Orders Affecting ERCOT Market Prices
02/16/2021 M-C021521-02 Update: Public Utility Commission Emergency Orders Affecting ERCOT Market Prices
02/16/2021 W-A021620-01 Implementation of maximum Shadow Price for an irresolvable constraint in SCED
02/15/2021 M-A021521-01 The February 17, 2021 Network Operations Model Production Database Load has been canceled
02/15/2021 M-B021521-01 ERCOT will accept Financial Security until 8:30 am CPT on Tuesday, February 16, 2021, for the Day Ahead Market for Operating Day February 17, 2021
02/15/2021 M-C021521-01 Emergency Order of the Public Utility Commission Affecting ERCOT Market Prices
02/15/2021 W-A021521-01 New Culberson (CULBSN) Generic Transmission Constraint (GTC)
02/15/2021 W-A090120-06 Date Change - Resource Integration and Ongoing Operations-Resource Services (RIOO-RS) February Release
02/15/2021 W-B021521-01 Back-up control plans due by March 15, 2021
02/14/2021 M-A021421-01 Notice of U.S. Department of Energy Section 202(c) Order affecting the ERCOT Region
02/14/2021 M-B021421 ERCOT is temporarily accepting financial guarantees in excess of $50 million
02/14/2021 M-C021421-01 Revisions to Total Potential Exposure (TPE)
02/14/2021 M-D021421-01 High DAM Responsive Reserve Service Market Clearing Prices for Capacity for Operating Day February 15, 2021
02/13/2021 M-A021321-01 Notice of Railroad Commission of Texas Action on Operation of Gas Utility Systems
02/13/2021 M-B021321-01 Revisions to Forward Adjustment Factors
02/13/2021 M-B021321-02 Revisions to RTLF Adjustment Factor
02/12/2021 M-A021121-01 Upcoming training courses
02/11/2021 M-A020121-03 Update - Suspension of Market Management and Outage Scheduler Systems/Applications Technical Refresh
02/11/2021 M-A021121-01 Inquiries concerning the SolarWinds Orion Software Security Breach
02/11/2021 M-C021221-01 TCEQ Notice of Enforcement Discretion for Extreme Cold Weather System Event
02/11/2021 W-A090120-05 Resource Integration and Ongoing Operations-Resource Services (RIOO-RS) February Release
02/10/2021 M-A021021-01 Informational details related to NPRR 902 - ERCOT Critical Energy Infrastructure Information
02/10/2021 W-A021021-01 Removal of the Pig Creek to Solstice (PIGSOL) Generic Transmission Constraint (GTC)
02/09/2021 M-A011121-03 Reminder - ERCOT to decommission old Market Information System (MIS) Portlet Site
02/09/2021 M-A020121-02 Market Management and Outage Scheduler (MMS/OS) Systems/Applications Outage during MMS/OS Tech Refresh Project Production Cutover
02/08/2021 W-A021720-02 Reminder - Upcoming reporting deadline for annual NOIE unregistered DG report
02/07/2021 M-A020321-02 Planned Maintenance Outage - Completion
02/05/2021 M-A011421-03 Reminder - ERCOT’s External Web Services Secure Sockets Layer certificate renewal update
02/05/2021 W-A121520-02 Reminder - RFP for Black Start Services for 2022 through 2023
02/04/2021 M-B020221-02 Update - Issue Identified for Futures Prices used in Forward Adjustment Factors
02/04/2021 M-B020421-01 Planned system maintenance with impacted services
02/03/2021 M-A020321-01 Retail Release February 2021
02/02/2021 M-A020221-01 Delayed processing of 814_20 transactions
02/02/2021 M-B020221-01 Issue Identified for Futures Prices used in Forward Adjustment Factors
02/01/2021 M-A020121-01 Implementation Workshop for NPRR902, ERCOT Critical Energy Infrastructure Information
02/01/2021 M-A020121-01 Market Management and Outage Scheduler Systems/Applications Technical Refresh
01/29/2021 M-A010521-03 Implementation of Market-facing changes for February 2021
01/29/2021 M-A011121-02 Reminder - ERCOT to decommission old Market Information System (MIS) Portlet Site
01/29/2021 M-A012921-01 Renewable Energy Credits and Compliance Premiums of 2018 vintage scheduled to expire
01/29/2021 M-B012921-01 2021.MAR.Monthly.Auction
01/29/2021 R-A012921-01 Administration of PUC Substantive Rule 25.476, Renewable and Green Energy Verification
01/29/2021 W-A012221-02 Updates to the Generation Interconnection Status (GIS) Report
01/29/2021 W-A012921-01 Generation Information Needed for Renewable and Green Energy Verification (Labeling of Electricity)
01/27/2021 M-A012721-01 2023.1st6.AnnualAuction.Seq5 CRR Auction
01/27/2021 W-A012721-01 Notification of Suspension of Operations (NSO) for Petra Nova Power I LLC (PNPI_GT2)
01/26/2021 M-A012621-01 Planned Transmission Outage Restrictions for Summer