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Market Notices concerning Power Operations and related Technical Issues at ERCOT.
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M-A051526-01 Test of ERCOT.com performance and ERCOT's automated emergency notification system
W-A051426-01 Proposal to Modify the Horse Hollow Generation Tie RAS
M-A051226-01 Seasonal Variability Change in the Look-Back Period for RTLE of EAL Component
R-A051226-01 Planned Maintenance Outage - Retail
M-A051126-01 MOTE Testing - DPC Dashboard - Transmission Operator Testing of DPC Submission Form
W-A051126-01 2026 Geomagnetic Disturbance Plan has been posted
R-A043026-04 Completion - Planned Maintenance Outage - Retail
M-A050826-01 Implementation of Market-facing changes for May 27, 2026 and May 28, 2026
R-A043026-03 Planned Maintenance Outage - Retail
R-A043026-02 Planned Maintenance Outage - Retail
M-A042826-03 Planned system maintenance with impacted services
M-C042726-03 Planned system maintenance with impacted services
M-A050526-01 Upcoming training courses
M-A042826-02 Planned system maintenance with impacted services
M-C042726-02 Planned system maintenance with impacted services
M-C050126-01 Notification of Suspension of Operations (NSO) for Brownsville Public Utilities Board (SILASRAY_SILAS_6, SILASRAY_SILAS_9)
W-A050225-02 Reminder - Requirement to submit dynamic models compatible with PSS/E version 36 prior to June 1, 2026
M-A050126-01 Implementation Details of NPRR 1265, Unregistered Distributed Generator
R-A043026-01 Planned Maintenance Outage - Retail
M-A033126-03 Removal of redirected URLs for Legacy Dashboards and/or Displays
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)
M-A040126-02 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM) - REMINDER
M-A040326-03 Implementation of Market-facing changes for April 29, 2026 and April 30, 2026
M-A042826-01 Planned system maintenance with impacted services
M-C042826-01 Notification of Change of Generation Resource Designation (NCGRD) for GEUS (STEAM1A_STEAM_1)
M-C042726-01 Planned system maintenance with impacted services
M-A033126-02 Removal of redirected URLs for Legacy Dashboards and/or Displays
M-A042326-01 Unregistered Distributed Generator (UDG) Workshop
M-A041626-02 Resolved - Digital Certificate Renewal Reminder email notification issue is resolved.
M-A040326-02 Implementation of Market-facing changes for April 30, 2026
M-A041626-01 Digital Certificate Renewal Reminder email notification issues
M-E032526-02 Update - 2026 Annual Constraint Management Plans (CMPs) Review
M-B041526-01 Request for data concerning Demand Response capabilities - Q1 2026
M-A041526-01 Window to submit Declarations of Weather Preparedness (DoWPs) via the ERCOT Weatherization & Inspection (W&I) Market Participant Portal (Portal) is May 1 - June 1, 2026
M-A041426-01 Overview of the ERCOT Weatherization and Inspection (W&I) program, highlighting Declaration of Weather Preparedness (DoWP) submissions and the inspection process
R-A041226-04 Completion - Planned Maintenance Outage - Retail
M-B040326-02 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files - Supplemental files available 04/10/2026
R-A031226-03 Planned Maintenance Outage - Retail
W-A040926-01 Notification of Miscellaneous Invoices for adjustment to March 2025 CRR Auction Revenue Distribution amounts
M-A033026-03 Planned system maintenance with impacted services
M-C033026-03 Planned system maintenance with impacted services
M-A040626-01 Annual Under-Frequency Load Shedding (UFLS) survey of Transmission Operators
M-C033026-02 Planned system maintenance with impacted services
M-A033026-02 Planned system maintenance with impacted services
M-C040326-01 Impacts to SCED due to Market database connectivity issues
M-B040326-01 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files
M-A040326-01 Implementation of Market-facing changes for April 30, 2026
R-A031226-02 Planned Maintenance Outage - Retail
M-B040126-01 Incorrect Reliability Unit Commitment (RUC) Opt- Out Snapshot Logic Issue Identified
M-D040126-01 Upcoming training courses
R-A040126-01 Posting of 2025 Texas Renewable Content Calculator for Reporting in 2026
M-A040126-01 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM)
M-A033126-01 Removal of redirected URLs for Legacy Dashboards and/or Displays
M-C033026-01 Planned system maintenance with impacted services
M-A033026-01 Planned system maintenance with impacted services
W-A033026-01 Update Generic Limits for the Panhandle Generic Transmission Constraint (GTC)
M-B032726-01 Stale Shift Factors and Constraints in SCED
M-A032726-01 Stale values for Generation and Constraint Shift Factor Data used in the Real-Time Market
M-E032526-01 2026 Annual Constraint Management Plans Review
M-A011626-04 Enhancements to the ERCOT Outage Scheduler will be implemented on March 26, 2026.
M-C032526-01 Incorrect Mitigated Offer Curves in the Real-Time Market due to Incorrect Verifiable Cost Data
M-A032526-01 GTC Communication Documents Update - 2026
M-A030626-03 Implementation of Market-facing changes for March 26, 2026
M-A032326-01 Access and familiarization of the Real- Time Operation Communications (RTOC) tool
M-A032326-01 Resource Entity (RE) and Transmission Service Provider (TSP) summer weather preparedness workshop in person or by WebEx
M-A032026-01 Posting of Summer Load Shed Tables
M-D031626-01 Unplanned network outage with impacted service
M-A030626-02 Implementation of Market-facing changes for March 26, 2026
M-A011626-03 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
M-A301326-01 Stakeholder Comments on proposed Large Load Batch Zero Process for discussion at March 24 Workshop
M-B030626-02 60-Day SCED Disclosure Report: Null Basepoint for CLRs within the 60-Day Load Resource Data in SCED output files - Supplemental files available 03/12/2026
R-A031226-01 Planned Maintenance Outage - Retail
M-B031226-01 Integration of City of Caldwell Load into the ERCOT System Complete
R-A022426-04 Completion - Planned Maintenance Outage - Retail
M-B030626-01 60-Day SCED Disclosure Report: Null Basepoint for CLRs within the 60-Day Load Resource Data in SCED output files
M-A030626-01 Implementation of Market-facing changes for March 26, 2026
R-A022426-03 Planned Maintenance Outage - Retail
M-A030526-01 Dashboards and displays affected by beginning of Daylight Saving Time (DST) March 8, 2026
W-A030526-01 2026 Annual Constraint Management Plans Review
M-B030426-01 Upcoming training courses
M-A030426-01 Resource Entity Hot Weather Operating Limits Review and Update
M-091625-03 Registration Closing Soon for ERCOT Innovation Summit
M-A022526-03 Planned system maintenance with impacted services
M-B022326-03 Planned system maintenance with impacted services
M-B030226-01 Stakeholder Feedback on a proposed Large Load Batch Study process
M-A022526-02 Planned system maintenance with impacted services
M-A030226-01 Updates to ADER Pilot Participation Limits
M-B022326-02 Planned system maintenance with impacted services
M-C022726-01 Posting of the 2025 High Impact Transmission Elements (HITE)
R-A022426-02 Planned Maintenance Outage - Retail
M-A021926-02 Implementation Details of NPRR1277, Revisions to EAL Formula
M-A022526-01 Planned system maintenance with impacted services
M-A021826-02 60-Day SCED Disclosure Report: Missing Telemetered Ancillary Service Capability data for RRS - Supplemental files posted 02/23/2026
R-A022426-01 Planned Maintenance Outage - Retail
M-A020326-03 Implementation of Market-facing changes for February 26, 2026
M-A022326-01 Large Load Interconnection Studies update for Far West Texas region
M-B022326-01 Planned system maintenance with impacted services
R-A022026-01 Planned Maintenance Outage - Retail
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.
M-B021926-01 ERCOT's External Web Services Secure Sockets Layer certificate renewal
M-A021926-01 Implementation Details of NPRR1277, Revisions to EAL Formula
M-A021826-01 60-Day SCED Disclosure Report: Missing Telemetered Ancillary Service Capability data for RRS
M-A122325-05 Large Load Batch Study Process Workshop #3 on February 26, 2026
W-B020226-02 2025 Generation Information Reporting Requirement for Renewable and Green Energy Verification
M-A020326-02 Implementation of Market-facing changes for February 26, 2026
M-B021326-01 Impacts to Generic Transmission Constraint Limits in the Day-Ahead Market due to a software issue.
M-A021326-01 Back-up control plans due by March 15, 2026
M-B021226-01 Notice of PUCT Electric Service Emergency Operations Plan (EOP) filings and related documents under 16 TAC 25.53
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
M-B021126-01 ERCOT RFI for Load Forecast Information Regarding Medium and Large Loads
M-A021126-01 Potential Price Correction - Incorrect consideration of Reliability Must Run Units for Reliability Deployment Price Adder
M-B021026-01 Notice of ERCOT Reliability Monitor (ERM) Compliance Audit
R-A011626-04 Completion - Planned Maintenance Outage
M-B020626-01 60-Day SCED Disclosure Report corrections for 02/03/2026 and 02/04/2026 postings
M-A020526-01 Potential Price Correction - SCED Incorrectly Determined Qualifying Facility Output Schedules
R-A011626-03 Planned Maintenance Outage - Retail
M-A020426-01 ERCOT MOTE will be open for DST testing
M-A012626-03 Planned system maintenance with impacted services
M-C012626-03 Planned system maintenance with impacted services
M-A122325-04 Stakeholder Feedback on a proposed Large Load Batch Study process framework
M-A020326-01 Implementation of Market-facing changes for February 26, 2026
M-B020226-01 Upcoming training courses
M-C012626-02 Planned system maintenance with impacted services
M-A012626-02 Planned system maintenance with impacted services
W-A020226-01 Reminder - Upcoming reporting deadline for annual NOIE unregistered DG report
M-A020226-01 Retirement of Pre-Real-Time Co-Optimization (RTC) System Operations Test Enviroment (SOTE) and Updated Citrix Shortcuts to access RTC+B SOTE
M-A013126-01 Optional, Final Ad Hoc Interim Voltage Ride-Through Assessment for Large Loads Requesting Initial Energization Before July 1, 2026
M-A122325-03 Workshop update regarding development of a proposed Batch Study process framework as part of ERCOT's Large Load interconnection process stakeholder engagement plan
M-A013026-01 Enhancements to the ERCOT Outage Scheduler in MOTE
M-C013026-01 Education/Training
M-C011626-03 Implementation of Market-facing changes for January 29, 2026
M-A012826-01 All Market Participants (User Security Administrators (USAs), Resource Entities, TDSPs)
W-A012726-01 Update Generic Limit guidelines for the Greater Valley Area (Valley Export, NelsonSharpe_RioHondo & NorthEd_lobo) Generic Transmission Constraints (GTCs)
M-D012626-01 Notice of updated Exhibit B to ERCOT-SPP Coordination Plan
M-C012626-01 Planned system maintenance with impacted services
M-B111425-02 Reminder - RFP for Black Start Services for 2027 through 2029
M-A012626-01 Planned system maintenance with impacted services
M-B012526-01 Notice of U.S. Department of Energy Section 202(c) Order Affecting the ERCOT Region
M-A012526-01 Notice of U.S. Department of Energy Section 202(c) Order Affecting Certain Customers with Backup Generation Facilities in the ERCOT Region
M-D012326-01 Investigation of Incorrect Projected Non-Binding Prices, Base Points and Awards
M-A011426-02 Reminder: Workshop to Discuss the Standard Form Agreement (SFA) Revisions Proposed in NPRR 1312 on January 28, 2026
M-C011626-02 Implementation of Market-facing changes for January 29, 2026
M-A012326-01 Planned Transmission Outage Restrictions for Summer 2026
R-A011626-02 Planned Maintenance Outage - Retail
M-B012326-01 TCEQ Enforcement Discretion Beginning at 12 p.m. (Noon) on January 23, 2026 and Ending at 12 p.m. (Noon) on January 27, 2026
M-A012226-02 ERCOT Credit Department Receiving Emails
M-A012226-01 ERCOT Credit Department Not Receiving Email
M-B012126-01 Planned system maintenance with impacted services
M-C012126-01 Implementation details of NPRR 1285, Improve Self-Commitment within RUC Opt Out Window
M-D011626-01 Implementation Details of PGRR131, Requirements for Interconnection Cost Reporting for Transmission-Connected Generators
M-A122325-02 Workshop for ERCOT Large Load interconnection process stakeholder engagement regarding development of a proposed Batch Study process framework
M-A011626-01 Enhancements to the ERCOT Outage Scheduler
R-A011626-01 Outage Retail/Wholesale
M-A012026-01 Weatherization Inspection Invoice Correction
M-C011626-01 Implementation of Market-facing changes for January 29, 2026
M-A060525-09 Notification of Miscellaneous Invoices (True-Up Settlement) for the Service Agreement with Life Cycle Power
M-B121825-03 Reminder: Upgrade to the email subscription service, LISTSERV. Action required.
M-A120125-02 Updated Standard Generation Interconnection Agreement (SGIA) and Amendments
M-A060525-08 Notification of Miscellaneous Invoices (True-Up Settlement) for the Service Agreement with Life Cycle Power
M-A011426-01 Workshop to Discuss the SFA Revisions Proposed in NPRR 1312 on January 28, 2026
M-A011326-01 Request for data concerning Demand Response capabilities - Q4 2025
R-A123125-04 Completion - Planned Maintenance Outage
M-A121225-05 Real Time Market (RTM) Resettlement for Operating Days (ODs) December 5 and 6, 2025
M-A010926-01 Notification to Submit Transmission Operator Emergency Operations Plans
R-A123125-03 Planned Maintenance Outage - Retail
M-A121225-04 Update: Software Issue Identified Impacting Ancillary Service Trades
M-A123025-03 Planned system maintenance with impacted services
M-B122925-03 Planned system maintenance with impacted services
M-B121825-02 Reminder: Upgrade to the email subscription service, LISTSERV. Action required 
R-A123125-02 Planned Maintenance Outage - Retail
M-A123025-02 Planned system maintenance with impacted services
M-B122925-02 Planned system maintenance with impacted services
M-A121225-03 Update: Software Issue Identified Impacting Ancillary Service Trades
W-A010225-01 Update Generic Limits identification process for Real Time Operations
W-A123125-01 Change to maximum shadow prices for constraints previously determined as irresolvable by SCED
R-A123125-01 Planned Maintenance Outage - Retail
M-A123025-01 Planned system maintenance with impacted services
M-B122925-01 Planned system maintenance with impacted services
M-A122325-01 ERCOT Large Load interconnection process stakeholder engagement plan and upcoming milestones regarding development of a proposed Batch Study process framework
W-B122325-01 Update to the Generic Transmission Limits (GTLs) for the Zapata - Starr area (ZAPSTR) Generic Transmission Constraint (GTC)
W-A122325-01 Update Generic Limits identification process for the Kinney County Generic Transmission Constraint (GTC)
M-E110525-04 RTC+B: Corrected Implementation Details of Revision Requests
M-A121925-01 2026 Minimum Monthly Ancillary Service Requirements
M-B121925-01 Partial Implementation Details of NPRR1182, Inclusion of Controllable Load Resources and Energy Storage Resources in the Constraint Competitiveness Test Process
M-C121925-01 Implementation Details of NPRR1283, Modification of SSR Mitigation Timeline
M-B121825-01 Upgrade to the email subscription service, LISTSERV. Action required.
M-A121725-01 Dashboard Requests Form Now Available
M-A121625-01 RIOO - SCR828 DUNS Limit Increase Release
M-A121225-02 Software Issue Identified Impacting Ancillary Service Trades
M-B121525-01 RCOT has posted new documents to facilitate the Large Load Interconnection process defined in Section 9 of the Planning Guide.
M-A121525-01 Upcoming training courses
M-A121225-01 Software Issue Identified Impacting Ancillary Service Trades
M-A110725-02 Request for comments in response to November 21st Cost of New Entry (CONE) Workshop
M-B121225-01 Confirm Market Participants' Affiliates and Lone Star Infrastructure Protection Act (LSIPA) Attestation by January 30, 2026, for LSIPA Compliance Purposes
M-A120925-02 Revised date for final CDR release - December 19, 2025; Pre-release draft version of the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) is available for review
M-A120925-01 Pre-release draft version of the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) is available for review
M-B120525-01 Real-Time Market Price Correction - Generic Transmission Constraint incorrectly considered in SCED
M-F110525-04 RTC+B: Implementation Go-Live Complete for Operating Day December 5, 2025
M-C110625-03 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
W-A120325-01 Reminder - ACTION REQUIRED - PUN output capacity changes
M-F110525-03 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
M-E110525-03 RTC+B: Implementation Details of Revision Requests
M-C110525-03 RTC+B: Implementation Details of Settlement-Related NPRRs
M-B110525-03 RTC+B: Implementation of Market-facing changes for December 05, 2025
M-A110525-03 RTC+B: Implementation of credit provisions of NPRR1013
W-A120225-01 2026 Winter and Spring Seasonal Voltage Profiles
M-A120125-01 Updated Standard Generation Interconnection Agreement (SGIA) effective beginning January 1, 2026
M-A112625-01 Non-Spin Ancillary Service Plan November-to-December Transition
M-A052125-02 Partial Implementation Details of NPRR1234/PGRR115, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater
M-B112525-01 GTC Communication Documents Update - Far West Texas IROLs
M-C110625-02 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
M-F110525-02 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
M-E110525-02 RTC+B: Implementation Details of Revision Requests
M-C110525-02 RTC+B: Implementation Details of Settlement-Related NPRRs
M-B110525-02 RTC+B: Implementation of Market-facing changes for December 05, 2025
M-A110525-02 RTC+B: Implementation of credit provisions of NPRR1013
M-091625-02 Registration is Open - 2026 ERCOT Innovation Summit
M-A111925-01 Non-Spin Ancillary Service Plan November-to-December Transition
M-A111725-01 Potential Price Correction - Incorrect Generation to be Dispatched Values Used in SCED
M-B111725-01 RTC+B: ERCOT Market Operations Testing Environment (MOTE) transition to RTC+B on December 1, 2025
M-C111425-01 Upcoming training courses
M-A111425-01 Updates to the Aggregated Distributed Energy Resource (ADER) Webpage
M-B111325-01 RTC+B: ERCOT API/XML Interface Listener Setup for QSEs without Resources
R-111225-01 Planned Maintenance Outage - Retail
M-B111125-01 Workshop on Aurora Energy Research Report Analyzing Resource Adequacy and Market Design Including DRRS
R-A102925-04 Completion - Planned Maintenance Outage
M-A110725-01 Cost of New Entry (CONE) Workshop on November 21, 2025
R-A102925-03 Planned Maintenance Outage - Retail
M-C110625-01 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
M-B110625-01 RTC+B: Acknowledgment from QSEs without Resources of RTC+B impacts
M-A110625-01 2025 Winter Load Shed Training Exercise
M-E110525-01 RTC+B: Implementation Details of Revision Requests
M-B110525-01 RTC+B: Implementation of Market-facing changes for December 05, 2025
M-C110525-01 RTC+B: Implementation Details of Settlement-Related NPRRs
M-A110525-01 RTC+B: Implementation of credit provisions of NPRR1013
M-F110525-01 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
M-B102725-03 Planned system maintenance with impacted services
M-A102825-03 Planned system maintenance with impacted services
R-A102925-02 Planned Maintenance Outage - Retail
M-A102825-02 Planned system maintenance with impacted services
M-B102725-02 Planned system maintenance with impacted services
M-D103125-01 Dashboards affected by end of Daylight Saving Time (DST) November 1 - 3, 2025
M-A103125-01 Window to submit Declarations of Weather Preparedness (DoWP) via the ERCOT Weatherization & Inspection Market Participant Portal (Portal) is November 1 - December 1, 2025
M-A103025-01 RIOO NOGRR245 Release to Production
R-A102925-01 Planned Maintenance Outage - Retail
M-A100925-02 Live production two-hour test for RTC+B closed-loop frequency control on October 30, 2025 between 10:00 am-13:00 pm
M-A102825-01 Planned system maintenance with impacted services
M-B102725-01 Planned system maintenance with impacted services
M-A102425-01 Aggregate Distributed Energy Resource (ADER) Pilot Project: Adjustments to Limits of Participation
M-A102325-01 Joint RTCBTF/TWG Workshop for RTC+B Closed-Loop LFC Testing, October 27, 2025 1:00 - 3:00 PM (WebEx only)

M-A051526-01 Test of ERCOT.com performance and ERCOT's automated emergency notification system
ERCOT Client Services
Fri, 15 May 2026 15:23:39 -0500
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W-A051426-01 Proposal to Modify the Horse Hollow Generation Tie RAS
ERCOT Client Services
Thu, 14 May 2026 12:25:12 -0500
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M-A051226-01 Seasonal Variability Change in the Look-Back Period for RTLE of EAL Component
ERCOT Client Services
Tue, 12 May 2026 15:33:01 -0500
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R-A051226-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Tue, 12 May 2026 09:03:32 -0500
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M-A051126-01 MOTE Testing - DPC Dashboard - Transmission Operator Testing of DPC Submission Form
ERCOT Client Services
Mon, 11 May 2026 17:32:35 -0500
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W-A051126-01 2026 Geomagnetic Disturbance Plan has been posted
ERCOT Client Services
Mon, 11 May 2026 09:08:10 -0500
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R-A043026-04 Completion - Planned Maintenance Outage - Retail
ERCOT Client Services
Sun, 10 May 2026 12:15:27 -0500
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M-A050826-01 Implementation of Market-facing changes for May 27, 2026 and May 28, 2026
ERCOT Client Services
Fri, 8 May 2026 15:38:26 -0500
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R-A043026-03 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 8 May 2026 12:01:56 -0500
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R-A043026-02 Planned Maintenance Outage - Retail
ERCOT Client Services
Wed, 6 May 2026 12:02:09 -0500
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M-A042826-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 6 May 2026 12:01:55 -0500
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M-C042726-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 6 May 2026 09:03:13 -0500
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M-A050526-01 Upcoming training courses
ERCOT Client Services
Tue, 5 May 2026 16:33:12 -0500
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M-A042826-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 4 May 2026 14:01:43 -0500
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M-C042726-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 4 May 2026 09:12:59 -0500
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M-C050126-01 Notification of Suspension of Operations (NSO) for Brownsville Public Utilities Board (SILASRAY_SILAS_6, SILASRAY_SILAS_9)
ERCOT Client Services
Fri, 1 May 2026 16:36:21 -0500
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W-A050225-02 Reminder - Requirement to submit dynamic models compatible with PSS/E version 36 prior to June 1, 2026
ERCOT Client Services
Fri, 1 May 2026 15:11:51 -0500
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M-A050126-01 Implementation Details of NPRR 1265, Unregistered Distributed Generator
ERCOT Client Services
Fri, 1 May 2026 13:00:57 -0500
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R-A043026-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Thu, 30 Apr 2026 11:59:28 -0500
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M-A033126-03 Removal of redirected URLs for Legacy Dashboards and/or Displays
ERCOT Client Services
Wed, 29 Apr 2026 15:56:26 -0500
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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)
ERCOT Client Services
Wed, 29 Apr 2026 14:59:07 -0500
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M-A040126-02 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM) - REMINDER
ERCOT Client Services
Wed, 29 Apr 2026 12:38:44 -0500
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M-A040326-03 Implementation of Market-facing changes for April 29, 2026 and April 30, 2026
ERCOT Client Services
Wed, 29 Apr 2026 12:04:54 -0500
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M-A042826-01 Planned system maintenance with impacted services
ERCOT Client Services
Tue, 28 Apr 2026 16:16:04 -0500
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M-C042826-01 Notification of Change of Generation Resource Designation (NCGRD) for GEUS (STEAM1A_STEAM_1)
ERCOT Client Services
Tue, 28 Apr 2026 14:32:58 -0500
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M-C042726-01 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 27 Apr 2026 15:02:26 -0500
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M-A033126-02 Removal of redirected URLs for Legacy Dashboards and/or Displays
ERCOT Client Services
Fri, 24 Apr 2026 08:36:11 -0500
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M-A042326-01 Unregistered Distributed Generator (UDG) Workshop
ERCOT Client Services
Thu, 23 Apr 2026 10:27:42 -0500
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M-A041626-02 Resolved - Digital Certificate Renewal Reminder email notification issue is resolved.
ERCOT Client Services
Mon, 20 Apr 2026 15:52:21 -0500
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M-A040326-02 Implementation of Market-facing changes for April 30, 2026
ERCOT Client Services
Mon, 20 Apr 2026 13:36:23 -0500
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M-A041626-01 Digital Certificate Renewal Reminder email notification issues
ERCOT Client Services
Thu, 16 Apr 2026 17:14:52 -0500
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M-E032526-02 Update - 2026 Annual Constraint Management Plans (CMPs) Review
ERCOT Client Services
Thu, 16 Apr 2026 14:30:29 -0500
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M-B041526-01 Request for data concerning Demand Response capabilities - Q1 2026
ERCOT Client Services
Wed, 15 Apr 2026 11:40:39 -0500
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M-A041526-01 Window to submit Declarations of Weather Preparedness (DoWPs) via the ERCOT Weatherization & Inspection (W&I) Market Participant Portal (Portal) is May 1 - June 1, 2026
ERCOT Client Services
Wed, 15 Apr 2026 09:00:53 -0500
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M-A041426-01 Overview of the ERCOT Weatherization and Inspection (W&I) program, highlighting Declaration of Weather Preparedness (DoWP) submissions and the inspection process
ERCOT Client Services
Tue, 14 Apr 2026 11:37:51 -0500
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R-A041226-04 Completion - Planned Maintenance Outage - Retail
ERCOT Client Services
Sun, 12 Apr 2026 10:12:08 -0500
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M-B040326-02 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files - Supplemental files available 04/10/2026
ERCOT Client Services
Fri, 10 Apr 2026 16:31:01 -0500
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R-A031226-03 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 10 Apr 2026 09:52:24 -0500
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W-A040926-01 Notification of Miscellaneous Invoices for adjustment to March 2025 CRR Auction Revenue Distribution amounts
ERCOT Client Services
Thu, 9 Apr 2026 10:51:00 -0500
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M-A033026-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 8 Apr 2026 09:05:08 -0500
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M-C033026-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 8 Apr 2026 08:46:21 -0500
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M-A040626-01 Annual Under-Frequency Load Shedding (UFLS) survey of Transmission Operators
ERCOT Client Services
Mon, 6 Apr 2026 15:46:14 -0500
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M-C033026-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 6 Apr 2026 09:15:15 -0500
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M-A033026-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 6 Apr 2026 09:14:38 -0500
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M-C040326-01 Impacts to SCED due to Market database connectivity issues
ERCOT Client Services
Fri, 3 Apr 2026 14:16:45 -0500
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M-B040326-01 60-Day SCED Disclosure Report: Nulls converted to Zeros within the 60-Day SCED Resource AS Offers output files
ERCOT Client Services
Fri, 3 Apr 2026 13:31:10 -0500
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M-A040326-01 Implementation of Market-facing changes for April 30, 2026
ERCOT Client Services
Fri, 3 Apr 2026 09:02:37 -0500
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R-A031226-02 Planned Maintenance Outage - Retail
ERCOT Client Services
Thu, 2 Apr 2026 10:32:48 -0500
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M-B040126-01 Incorrect Reliability Unit Commitment (RUC) Opt- Out Snapshot Logic Issue Identified
ERCOT Client Services
Wed, 1 Apr 2026 19:11:12 -0500
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M-D040126-01 Upcoming training courses
ERCOT Client Services
Wed, 1 Apr 2026 17:05:16 -0500
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R-A040126-01 Posting of 2025 Texas Renewable Content Calculator for Reporting in 2026
ERCOT Client Services
Wed, 1 Apr 2026 16:29:18 -0500
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M-A040126-01 Public Website Cipher Security Hardening (MIS.ERCOT.COM, MISAPI.ERCOT.COM, API.WAN.ERCOT.COM)
ERCOT Client Services
Wed, 1 Apr 2026 16:10:16 -0500
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M-A033126-01 Removal of redirected URLs for Legacy Dashboards and/or Displays
ERCOT Client Services
Tue, 31 Mar 2026 08:23:10 -0500
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M-C033026-01 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 30 Mar 2026 16:17:41 -0500
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M-A033026-01 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 30 Mar 2026 09:16:48 -0500
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W-A033026-01 Update Generic Limits for the Panhandle Generic Transmission Constraint (GTC)
ERCOT Client Services
Mon, 30 Mar 2026 09:01:39 -0500
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M-B032726-01 Stale Shift Factors and Constraints in SCED
ERCOT Client Services
Fri, 27 Mar 2026 16:46:07 -0500
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M-A032726-01 Stale values for Generation and Constraint Shift Factor Data used in the Real-Time Market
ERCOT Client Services
Fri, 27 Mar 2026 16:03:25 -0500
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M-E032526-01 2026 Annual Constraint Management Plans Review
ERCOT Client Services
Wed, 25 Mar 2026 17:08:06 -0500
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M-A011626-04 Enhancements to the ERCOT Outage Scheduler will be implemented on March 26, 2026.
ERCOT Client Services
Wed, 25 Mar 2026 15:16:49 -0500
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M-C032526-01 Incorrect Mitigated Offer Curves in the Real-Time Market due to Incorrect Verifiable Cost Data
ERCOT Client Services
Wed, 25 Mar 2026 11:16:17 -0500
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M-A032526-01 GTC Communication Documents Update - 2026
ERCOT Client Services
Wed, 25 Mar 2026 11:14:15 -0500
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M-A030626-03 Implementation of Market-facing changes for March 26, 2026
ERCOT Client Services
Tue, 24 Mar 2026 15:39:46 -0500
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M-A032326-01 Access and familiarization of the Real- Time Operation Communications (RTOC) tool
ERCOT Client Services
Mon, 23 Mar 2026 14:10:32 -0500
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M-A032326-01 Resource Entity (RE) and Transmission Service Provider (TSP) summer weather preparedness workshop in person or by WebEx
ERCOT Client Services
Mon, 23 Mar 2026 13:04:33 -0500
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M-A032026-01 Posting of Summer Load Shed Tables
ERCOT Client Services
Fri, 20 Mar 2026 14:38:23 -0500
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M-D031626-01 Unplanned network outage with impacted service
ERCOT Client Services
Mon, 16 Mar 2026 22:33:20 -0500
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M-A030626-02 Implementation of Market-facing changes for March 26, 2026
ERCOT Client Services
Mon, 16 Mar 2026 13:17:49 -0500
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M-A011626-03 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
ERCOT Client Services
Mon, 16 Mar 2026 13:17:13 -0500
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M-A301326-01 Stakeholder Comments on proposed Large Load Batch Zero Process for discussion at March 24 Workshop
ERCOT Client Services
Fri, 13 Mar 2026 11:22:31 -0500
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M-B030626-02 60-Day SCED Disclosure Report: Null Basepoint for CLRs within the 60-Day Load Resource Data in SCED output files - Supplemental files available 03/12/2026
ERCOT Client Services
Thu, 12 Mar 2026 16:13:31 -0500
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R-A031226-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Thu, 12 Mar 2026 12:08:29 -0500
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M-B031226-01 Integration of City of Caldwell Load into the ERCOT System Complete
ERCOT Client Services
Thu, 12 Mar 2026 10:45:28 -0500
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R-A022426-04 Completion - Planned Maintenance Outage - Retail
ERCOT Client Services
Sun, 8 Mar 2026 11:29:37 -0500
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M-B030626-01 60-Day SCED Disclosure Report: Null Basepoint for CLRs within the 60-Day Load Resource Data in SCED output files
ERCOT Client Services
Fri, 6 Mar 2026 08:57:38 -0600
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M-A030626-01 Implementation of Market-facing changes for March 26, 2026
ERCOT Client Services
Fri, 6 Mar 2026 08:56:33 -0600
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R-A022426-03 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 6 Mar 2026 08:55:50 -0600
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M-A030526-01 Dashboards and displays affected by beginning of Daylight Saving Time (DST) March 8, 2026
ERCOT Client Services
Thu, 5 Mar 2026 16:04:06 -0600
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W-A030526-01 2026 Annual Constraint Management Plans Review
ERCOT Client Services
Thu, 5 Mar 2026 13:29:26 -0600
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M-B030426-01 Upcoming training courses
ERCOT Client Services
Wed, 4 Mar 2026 11:16:29 -0600
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M-A030426-01 Resource Entity Hot Weather Operating Limits Review and Update
ERCOT Client Services
Wed, 4 Mar 2026 10:23:14 -0600
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M-091625-03 Registration Closing Soon for ERCOT Innovation Summit
ERCOT Client Services
Wed, 4 Mar 2026 09:04:03 -0600
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M-A022526-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 4 Mar 2026 08:33:01 -0600
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M-B022326-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 4 Mar 2026 08:31:47 -0600
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M-B030226-01 Stakeholder Feedback on a proposed Large Load Batch Study process
ERCOT Client Services
Mon, 2 Mar 2026 16:04:42 -0600
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M-A022526-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 2 Mar 2026 11:26:53 -0600
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M-A030226-01 Updates to ADER Pilot Participation Limits
ERCOT Client Services
Mon, 2 Mar 2026 11:26:01 -0600
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M-B022326-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 2 Mar 2026 08:58:59 -0600
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M-C022726-01 Posting of the 2025 High Impact Transmission Elements (HITE)
ERCOT Client Services
Fri, 27 Feb 2026 17:09:00 -0600
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R-A022426-02 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 27 Feb 2026 12:53:28 -0600
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M-A021926-02 Implementation Details of NPRR1277, Revisions to EAL Formula
ERCOT Client Services
Thu, 26 Feb 2026 11:16:48 -0600
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M-A022526-01 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 25 Feb 2026 12:25:47 -0600
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M-A021826-02 60-Day SCED Disclosure Report: Missing Telemetered Ancillary Service Capability data for RRS - Supplemental files posted 02/23/2026
ERCOT Client Services
Tue, 24 Feb 2026 16:45:33 -0600
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R-A022426-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Tue, 24 Feb 2026 11:18:31 -0600
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M-A020326-03 Implementation of Market-facing changes for February 26, 2026
ERCOT Client Services
Tue, 24 Feb 2026 10:24:57 -0600
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M-A022326-01 Large Load Interconnection Studies update for Far West Texas region
ERCOT Client Services
Mon, 23 Feb 2026 16:36:43 -0600
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M-B022326-01 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 23 Feb 2026 11:39:14 -0600
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R-A022026-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 20 Feb 2026 12:06:24 -0600
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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.
ERCOT Client Services
Fri, 20 Feb 2026 11:48:06 -0600
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M-B021926-01 ERCOT's External Web Services Secure Sockets Layer certificate renewal
ERCOT Client Services
Thu, 19 Feb 2026 16:59:36 -0600
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M-A021926-01 Implementation Details of NPRR1277, Revisions to EAL Formula
ERCOT Client Services
Thu, 19 Feb 2026 11:46:08 -0600
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M-A021826-01 60-Day SCED Disclosure Report: Missing Telemetered Ancillary Service Capability data for RRS
ERCOT Client Services
Wed, 18 Feb 2026 16:38:36 -0600
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M-A122325-05 Large Load Batch Study Process Workshop #3 on February 26, 2026
ERCOT Client Services
Tue, 17 Feb 2026 11:52:16 -0600
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W-B020226-02 2025 Generation Information Reporting Requirement for Renewable and Green Energy Verification
ERCOT Client Services
Mon, 16 Feb 2026 15:56:49 -0600
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M-A020326-02 Implementation of Market-facing changes for February 26, 2026
ERCOT Client Services
Mon, 16 Feb 2026 13:44:37 -0600
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M-B021326-01 Impacts to Generic Transmission Constraint Limits in the Day-Ahead Market due to a software issue.
ERCOT Client Services
Fri, 13 Feb 2026 16:57:56 -0600
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M-A021326-01 Back-up control plans due by March 15, 2026
ERCOT Client Services
Fri, 13 Feb 2026 08:46:42 -0600
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M-B021226-01 Notice of PUCT Electric Service Emergency Operations Plan (EOP) filings and related documents under 16 TAC 25.53
ERCOT Client Services
Thu, 12 Feb 2026 16:47:18 -0600
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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
ERCOT Client Services
Thu, 12 Feb 2026 15:49:44 -0600
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M-B021126-01 ERCOT RFI for Load Forecast Information Regarding Medium and Large Loads
ERCOT Client Services
Wed, 11 Feb 2026 17:13:38 -0600
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M-A021126-01 Potential Price Correction - Incorrect consideration of Reliability Must Run Units for Reliability Deployment Price Adder
ERCOT Client Services
Wed, 11 Feb 2026 14:08:17 -0600
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M-B021026-01 Notice of ERCOT Reliability Monitor (ERM) Compliance Audit
ERCOT Client Services
Tue, 10 Feb 2026 10:41:10 -0600
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R-A011626-04 Completion - Planned Maintenance Outage
ERCOT Client Services
Sun, 8 Feb 2026 14:36:25 -0600
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M-B020626-01 60-Day SCED Disclosure Report corrections for 02/03/2026 and 02/04/2026 postings
ERCOT Client Services
Fri, 6 Feb 2026 14:52:11 -0600
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M-A020526-01 Potential Price Correction - SCED Incorrectly Determined Qualifying Facility Output Schedules
ERCOT Client Services
Thu, 5 Feb 2026 17:14:59 -0600
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R-A011626-03 Planned Maintenance Outage - Retail
ERCOT Client Services
Thu, 5 Feb 2026 09:52:30 -0600
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M-A020426-01 ERCOT MOTE will be open for DST testing
ERCOT Client Services
Wed, 4 Feb 2026 09:51:42 -0600
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M-A012626-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 4 Feb 2026 08:34:06 -0600
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M-C012626-03 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 4 Feb 2026 08:33:23 -0600
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M-A122325-04 Stakeholder Feedback on a proposed Large Load Batch Study process framework
ERCOT Client Services
Tue, 3 Feb 2026 15:00:57 -0600
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M-A020326-01 Implementation of Market-facing changes for February 26, 2026
ERCOT Client Services
Tue, 3 Feb 2026 09:27:15 -0600
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M-B020226-01 Upcoming training courses
ERCOT Client Services
Mon, 2 Feb 2026 16:24:12 -0600
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M-C012626-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 2 Feb 2026 11:19:28 -0600
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M-A012626-02 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 2 Feb 2026 08:29:40 -0600
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W-A020226-01 Reminder - Upcoming reporting deadline for annual NOIE unregistered DG report
ERCOT Client Services
Mon, 2 Feb 2026 08:27:02 -0600
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M-A020226-01 Retirement of Pre-Real-Time Co-Optimization (RTC) System Operations Test Enviroment (SOTE) and Updated Citrix Shortcuts to access RTC+B SOTE
ERCOT Client Services
Mon, 2 Feb 2026 08:24:57 -0600
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M-A013126-01 Optional, Final Ad Hoc Interim Voltage Ride-Through Assessment for Large Loads Requesting Initial Energization Before July 1, 2026
ERCOT Client Services
Sat, 31 Jan 2026 09:53:55 -0600
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M-A122325-03 Workshop update regarding development of a proposed Batch Study process framework as part of ERCOT's Large Load interconnection process stakeholder engagement plan
ERCOT Client Services
Fri, 30 Jan 2026 15:36:56 -0600
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M-A013026-01 Enhancements to the ERCOT Outage Scheduler in MOTE
ERCOT Client Services
Fri, 30 Jan 2026 09:23:13 -0600
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M-C013026-01 Education/Training
ERCOT Client Services
Fri, 30 Jan 2026 08:57:53 -0600
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M-C011626-03 Implementation of Market-facing changes for January 29, 2026
ERCOT Client Services
Wed, 28 Jan 2026 11:16:19 -0600
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M-A012826-01 All Market Participants (User Security Administrators (USAs), Resource Entities, TDSPs)
ERCOT Client Services
Wed, 28 Jan 2026 10:57:01 -0600
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W-A012726-01 Update Generic Limit guidelines for the Greater Valley Area (Valley Export, NelsonSharpe_RioHondo & NorthEd_lobo) Generic Transmission Constraints (GTCs)
ERCOT Client Services
Tue, 27 Jan 2026 09:52:03 -0600
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M-D012626-01 Notice of updated Exhibit B to ERCOT-SPP Coordination Plan
ERCOT Client Services
Mon, 26 Jan 2026 16:50:36 -0600
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M-C012626-01 Planned system maintenance with impacted services
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Mon, 26 Jan 2026 15:17:00 -0600
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M-B111425-02 Reminder - RFP for Black Start Services for 2027 through 2029
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Mon, 26 Jan 2026 13:01:21 -0600
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M-A012626-01 Planned system maintenance with impacted services
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Mon, 26 Jan 2026 11:49:10 -0600
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M-B012526-01 Notice of U.S. Department of Energy Section 202(c) Order Affecting the ERCOT Region
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Mon, 26 Jan 2026 00:08:54 -0600
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M-A012526-01 Notice of U.S. Department of Energy Section 202(c) Order Affecting Certain Customers with Backup Generation Facilities in the ERCOT Region
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Sun, 25 Jan 2026 17:37:09 -0600
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M-D012326-01 Investigation of Incorrect Projected Non-Binding Prices, Base Points and Awards
ERCOT Client Services
Fri, 23 Jan 2026 17:10:43 -0600
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M-A011426-02 Reminder: Workshop to Discuss the Standard Form Agreement (SFA) Revisions Proposed in NPRR 1312 on January 28, 2026
ERCOT Client Services
Fri, 23 Jan 2026 11:38:46 -0600
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M-C011626-02 Implementation of Market-facing changes for January 29, 2026
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Fri, 23 Jan 2026 11:38:13 -0600
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M-A012326-01 Planned Transmission Outage Restrictions for Summer 2026
ERCOT Client Services
Fri, 23 Jan 2026 11:37:27 -0600
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R-A011626-02 Planned Maintenance Outage - Retail
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Fri, 23 Jan 2026 11:37:01 -0600
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M-B012326-01 TCEQ Enforcement Discretion Beginning at 12 p.m. (Noon) on January 23, 2026 and Ending at 12 p.m. (Noon) on January 27, 2026
ERCOT Client Services
Fri, 23 Jan 2026 11:15:33 -0600
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M-A012226-02 ERCOT Credit Department Receiving Emails
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Thu, 22 Jan 2026 22:55:55 -0600
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M-A012226-01 ERCOT Credit Department Not Receiving Email
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Thu, 22 Jan 2026 19:23:49 -0600
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M-B012126-01 Planned system maintenance with impacted services
ERCOT Client Services
Wed, 21 Jan 2026 16:45:27 -0600
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M-C012126-01 Implementation details of NPRR 1285, Improve Self-Commitment within RUC Opt Out Window
ERCOT Client Services
Wed, 21 Jan 2026 14:34:26 -0600
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M-D011626-01 Implementation Details of PGRR131, Requirements for Interconnection Cost Reporting for Transmission-Connected Generators
ERCOT Client Services
Fri, 16 Jan 2026 16:57:30 -0600
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M-A122325-02 Workshop for ERCOT Large Load interconnection process stakeholder engagement regarding development of a proposed Batch Study process framework
ERCOT Client Services
Fri, 16 Jan 2026 16:02:12 -0600
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M-A011626-01 Enhancements to the ERCOT Outage Scheduler
ERCOT Client Services
Fri, 16 Jan 2026 12:58:29 -0600
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R-A011626-01 Outage Retail/Wholesale
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Fri, 16 Jan 2026 12:42:44 -0600
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M-A012026-01 Weatherization Inspection Invoice Correction
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Fri, 16 Jan 2026 12:31:41 -0600
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M-C011626-01 Implementation of Market-facing changes for January 29, 2026
ERCOT Client Services
Fri, 16 Jan 2026 12:09:40 -0600
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M-A060525-09 Notification of Miscellaneous Invoices (True-Up Settlement) for the Service Agreement with Life Cycle Power
ERCOT Client Services
Thu, 15 Jan 2026 10:57:40 -0600
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M-B121825-03 Reminder: Upgrade to the email subscription service, LISTSERV. Action required.
ERCOT Client Services
Wed, 14 Jan 2026 16:20:49 -0600
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M-A120125-02 Updated Standard Generation Interconnection Agreement (SGIA) and Amendments
ERCOT Client Services
Wed, 14 Jan 2026 14:48:08 -0600
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M-A060525-08 Notification of Miscellaneous Invoices (True-Up Settlement) for the Service Agreement with Life Cycle Power
ERCOT Client Services
Wed, 14 Jan 2026 13:52:58 -0600
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M-A011426-01 Workshop to Discuss the SFA Revisions Proposed in NPRR 1312 on January 28, 2026
ERCOT Client Services
Wed, 14 Jan 2026 10:44:38 -0600
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M-A011326-01 Request for data concerning Demand Response capabilities - Q4 2025
ERCOT Client Services
Tue, 13 Jan 2026 09:55:12 -0600
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R-A123125-04 Completion - Planned Maintenance Outage
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Sun, 11 Jan 2026 10:15:01 -0600
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M-A121225-05 Real Time Market (RTM) Resettlement for Operating Days (ODs) December 5 and 6, 2025
ERCOT Client Services
Fri, 9 Jan 2026 10:30:20 -0600
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M-A010926-01 Notification to Submit Transmission Operator Emergency Operations Plans
ERCOT Client Services
Fri, 9 Jan 2026 09:50:59 -0600
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R-A123125-03 Planned Maintenance Outage - Retail
ERCOT Client Services
Fri, 9 Jan 2026 09:09:27 -0600
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M-A121225-04 Update: Software Issue Identified Impacting Ancillary Service Trades
ERCOT Client Services
Wed, 7 Jan 2026 09:04:08 -0600
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M-A123025-03 Planned system maintenance with impacted services
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Wed, 7 Jan 2026 08:53:02 -0600
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M-B122925-03 Planned system maintenance with impacted services
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Wed, 7 Jan 2026 08:47:38 -0600
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M-B121825-02 Reminder: Upgrade to the email subscription service, LISTSERV. Action required 
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Tue, 6 Jan 2026 13:41:24 -0600
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R-A123125-02 Planned Maintenance Outage - Retail
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Tue, 6 Jan 2026 10:21:28 -0600
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M-A123025-02 Planned system maintenance with impacted services
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Mon, 5 Jan 2026 10:51:15 -0600
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M-B122925-02 Planned system maintenance with impacted services
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Mon, 5 Jan 2026 08:57:29 -0600
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M-A121225-03 Update: Software Issue Identified Impacting Ancillary Service Trades
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Fri, 2 Jan 2026 15:50:48 -0600
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W-A010225-01 Update Generic Limits identification process for Real Time Operations
ERCOT Client Services
Fri, 2 Jan 2026 09:40:06 -0600
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W-A123125-01 Change to maximum shadow prices for constraints previously determined as irresolvable by SCED
ERCOT Client Services
Wed, 31 Dec 2025 13:09:29 -0600
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R-A123125-01 Planned Maintenance Outage - Retail
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Wed, 31 Dec 2025 08:30:59 -0600
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M-A123025-01 Planned system maintenance with impacted services
ERCOT Client Services
Tue, 30 Dec 2025 11:37:49 -0600
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M-B122925-01 Planned system maintenance with impacted services
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Mon, 29 Dec 2025 10:59:50 -0600
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M-A122325-01 ERCOT Large Load interconnection process stakeholder engagement plan and upcoming milestones regarding development of a proposed Batch Study process framework
ERCOT Client Services
Tue, 23 Dec 2025 16:53:04 -0600
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W-B122325-01 Update to the Generic Transmission Limits (GTLs) for the Zapata - Starr area (ZAPSTR) Generic Transmission Constraint (GTC)
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Tue, 23 Dec 2025 10:35:01 -0600
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W-A122325-01 Update Generic Limits identification process for the Kinney County Generic Transmission Constraint (GTC)
ERCOT Client Services
Tue, 23 Dec 2025 10:28:23 -0600
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M-E110525-04 RTC+B: Corrected Implementation Details of Revision Requests
ERCOT Client Services
Fri, 19 Dec 2025 15:16:16 -0600
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M-A121925-01 2026 Minimum Monthly Ancillary Service Requirements
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Fri, 19 Dec 2025 14:55:25 -0600
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M-B121925-01 Partial Implementation Details of NPRR1182, Inclusion of Controllable Load Resources and Energy Storage Resources in the Constraint Competitiveness Test Process
ERCOT Client Services
Fri, 19 Dec 2025 13:12:28 -0600
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M-C121925-01 Implementation Details of NPRR1283, Modification of SSR Mitigation Timeline
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Fri, 19 Dec 2025 12:07:35 -0600
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M-B121825-01 Upgrade to the email subscription service, LISTSERV. Action required.
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Thu, 18 Dec 2025 15:45:20 -0600
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M-A121725-01 Dashboard Requests Form Now Available
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Wed, 17 Dec 2025 14:22:52 -0600
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M-A121625-01 RIOO - SCR828 DUNS Limit Increase Release
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Tue, 16 Dec 2025 16:04:47 -0600
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M-A121225-02 Software Issue Identified Impacting Ancillary Service Trades
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Mon, 15 Dec 2025 19:33:05 -0600
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M-B121525-01 RCOT has posted new documents to facilitate the Large Load Interconnection process defined in Section 9 of the Planning Guide.
ERCOT Client Services
Mon, 15 Dec 2025 17:01:09 -0600
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M-A121525-01 Upcoming training courses
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Mon, 15 Dec 2025 10:34:27 -0600
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M-A121225-01 Software Issue Identified Impacting Ancillary Service Trades
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Fri, 12 Dec 2025 16:57:42 -0600
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M-A110725-02 Request for comments in response to November 21st Cost of New Entry (CONE) Workshop
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Fri, 12 Dec 2025 15:59:51 -0600
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M-B121225-01 Confirm Market Participants' Affiliates and Lone Star Infrastructure Protection Act (LSIPA) Attestation by January 30, 2026, for LSIPA Compliance Purposes
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Fri, 12 Dec 2025 11:17:36 -0600
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M-A120925-02 Revised date for final CDR release - December 19, 2025; Pre-release draft version of the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) is available for review
ERCOT Client Services
Tue, 9 Dec 2025 17:07:11 -0600
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M-A120925-01 Pre-release draft version of the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) is available for review
ERCOT Client Services
Tue, 9 Dec 2025 16:22:07 -0600
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M-B120525-01 Real-Time Market Price Correction - Generic Transmission Constraint incorrectly considered in SCED
ERCOT Client Services
Fri, 5 Dec 2025 10:40:26 -0600
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M-F110525-04 RTC+B: Implementation Go-Live Complete for Operating Day December 5, 2025
ERCOT Client Services
Fri, 5 Dec 2025 09:50:29 -0600
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M-C110625-03 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
ERCOT Client Services
Wed, 3 Dec 2025 13:46:24 -0600
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W-A120325-01 Reminder - ACTION REQUIRED - PUN output capacity changes
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Wed, 3 Dec 2025 12:24:33 -0600
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M-F110525-03 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
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Wed, 3 Dec 2025 12:19:11 -0600
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M-E110525-03 RTC+B: Implementation Details of Revision Requests
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Wed, 3 Dec 2025 12:18:27 -0600
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M-C110525-03 RTC+B: Implementation Details of Settlement-Related NPRRs
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Wed, 3 Dec 2025 12:16:55 -0600
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M-B110525-03 RTC+B: Implementation of Market-facing changes for December 05, 2025
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Wed, 3 Dec 2025 12:16:07 -0600
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M-A110525-03 RTC+B: Implementation of credit provisions of NPRR1013
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Wed, 3 Dec 2025 12:15:18 -0600
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W-A120225-01 2026 Winter and Spring Seasonal Voltage Profiles
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Tue, 2 Dec 2025 17:26:23 -0600
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M-A120125-01 Updated Standard Generation Interconnection Agreement (SGIA) effective beginning January 1, 2026
ERCOT Client Services
Mon, 1 Dec 2025 12:13:37 -0600
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M-A112625-01 Non-Spin Ancillary Service Plan November-to-December Transition
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Wed, 26 Nov 2025 12:43:33 -0600
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M-A052125-02 Partial Implementation Details of NPRR1234/PGRR115, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater
ERCOT Client Services
Tue, 25 Nov 2025 13:14:38 -0600
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M-B112525-01 GTC Communication Documents Update - Far West Texas IROLs
ERCOT Client Services
Tue, 25 Nov 2025 12:04:49 -0600
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M-C110625-02 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
ERCOT Client Services
Fri, 21 Nov 2025 14:17:53 -0600
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M-F110525-02 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
ERCOT Client Services
Fri, 21 Nov 2025 12:04:24 -0600
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M-E110525-02 RTC+B: Implementation Details of Revision Requests
ERCOT Client Services
Fri, 21 Nov 2025 12:03:43 -0600
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M-C110525-02 RTC+B: Implementation Details of Settlement-Related NPRRs
ERCOT Client Services
Fri, 21 Nov 2025 12:03:05 -0600
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M-B110525-02 RTC+B: Implementation of Market-facing changes for December 05, 2025
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Fri, 21 Nov 2025 12:01:57 -0600
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M-A110525-02 RTC+B: Implementation of credit provisions of NPRR1013
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Fri, 21 Nov 2025 12:00:31 -0600
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M-091625-02 Registration is Open - 2026 ERCOT Innovation Summit
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Wed, 19 Nov 2025 15:02:31 -0600
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M-A111925-01 Non-Spin Ancillary Service Plan November-to-December Transition
ERCOT Client Services
Wed, 19 Nov 2025 11:28:09 -0600
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M-A111725-01 Potential Price Correction - Incorrect Generation to be Dispatched Values Used in SCED
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Mon, 17 Nov 2025 15:37:05 -0600
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M-B111725-01 RTC+B: ERCOT Market Operations Testing Environment (MOTE) transition to RTC+B on December 1, 2025
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Mon, 17 Nov 2025 15:34:01 -0600
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M-C111425-01 Upcoming training courses
ERCOT Client Services
Fri, 14 Nov 2025 10:56:51 -0600
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M-A111425-01 Updates to the Aggregated Distributed Energy Resource (ADER) Webpage
ERCOT Client Services
Fri, 14 Nov 2025 09:51:56 -0600
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M-B111325-01 RTC+B: ERCOT API/XML Interface Listener Setup for QSEs without Resources
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Thu, 13 Nov 2025 11:27:17 -0600
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R-111225-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Wed, 12 Nov 2025 14:47:15 -0600
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M-B111125-01 Workshop on Aurora Energy Research Report Analyzing Resource Adequacy and Market Design Including DRRS
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Tue, 11 Nov 2025 11:22:13 -0600
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R-A102925-04 Completion - Planned Maintenance Outage
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Sun, 9 Nov 2025 10:15:48 -0600
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M-A110725-01 Cost of New Entry (CONE) Workshop on November 21, 2025
ERCOT Client Services
Fri, 7 Nov 2025 13:11:24 -0600
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R-A102925-03 Planned Maintenance Outage - Retail
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Fri, 7 Nov 2025 08:23:01 -0600
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M-C110625-01 ERCOT Change to End-Point URL Address for External Web Services API in Production Environment
ERCOT Client Services
Thu, 6 Nov 2025 16:00:23 -0600
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M-B110625-01 RTC+B: Acknowledgment from QSEs without Resources of RTC+B impacts
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Thu, 6 Nov 2025 15:55:50 -0600
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M-A110625-01 2025 Winter Load Shed Training Exercise
ERCOT Client Services
Thu, 6 Nov 2025 15:40:18 -0600
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M-E110525-01 RTC+B: Implementation Details of Revision Requests
ERCOT Client Services
Wed, 5 Nov 2025 16:20:22 -0600
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M-B110525-01 RTC+B: Implementation of Market-facing changes for December 05, 2025
ERCOT Client Services
Wed, 5 Nov 2025 16:20:09 -0600
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M-C110525-01 RTC+B: Implementation Details of Settlement-Related NPRRs
ERCOT Client Services
Wed, 5 Nov 2025 16:19:53 -0600
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M-A110525-01 RTC+B: Implementation of credit provisions of NPRR1013
ERCOT Client Services
Wed, 5 Nov 2025 16:19:35 -0600
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M-F110525-01 RTC+B: Implementation Go-Live Plan for Operating Day December 5, 2025
ERCOT Client Services
Wed, 5 Nov 2025 16:19:17 -0600
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M-B102725-03 Planned system maintenance with impacted services
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Wed, 5 Nov 2025 08:44:56 -0600
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M-A102825-03 Planned system maintenance with impacted services
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Wed, 5 Nov 2025 08:43:53 -0600
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R-A102925-02 Planned Maintenance Outage - Retail
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Tue, 4 Nov 2025 09:27:05 -0600
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M-A102825-02 Planned system maintenance with impacted services
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Mon, 3 Nov 2025 10:00:31 -0600
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M-B102725-02 Planned system maintenance with impacted services
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Mon, 3 Nov 2025 08:47:15 -0600
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M-D103125-01 Dashboards affected by end of Daylight Saving Time (DST) November 1 - 3, 2025
ERCOT Client Services
Fri, 31 Oct 2025 13:55:03 -0500
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M-A103125-01 Window to submit Declarations of Weather Preparedness (DoWP) via the ERCOT Weatherization & Inspection Market Participant Portal (Portal) is November 1 - December 1, 2025
ERCOT Client Services
Fri, 31 Oct 2025 09:02:58 -0500
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M-A103025-01 RIOO NOGRR245 Release to Production
ERCOT Client Services
Thu, 30 Oct 2025 11:00:44 -0500
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R-A102925-01 Planned Maintenance Outage - Retail
ERCOT Client Services
Wed, 29 Oct 2025 11:23:19 -0500
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M-A100925-02 Live production two-hour test for RTC+B closed-loop frequency control on October 30, 2025 between 10:00 am-13:00 pm
ERCOT Client Services
Wed, 29 Oct 2025 08:20:05 -0500
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M-A102825-01 Planned system maintenance with impacted services
ERCOT Client Services
Tue, 28 Oct 2025 11:22:06 -0500
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M-B102725-01 Planned system maintenance with impacted services
ERCOT Client Services
Mon, 27 Oct 2025 10:56:55 -0500
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M-A102425-01 Aggregate Distributed Energy Resource (ADER) Pilot Project: Adjustments to Limits of Participation
ERCOT Client Services
Fri, 24 Oct 2025 10:00:56 -0500
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M-A102325-01 Joint RTCBTF/TWG Workshop for RTC+B Closed-Loop LFC Testing, October 27, 2025 1:00 - 3:00 PM (WebEx only)
ERCOT Client Services
Thu, 23 Oct 2025 15:37:53 -0500
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