NOTICE DATE:  November 5, 2025

NOTICE TYPE:  M-E110525-01 Market Rules

SHORT DESCRIPTION:  RTC+B: Implementation Details of Revision Requests

INTENDED AUDIENCE:  All Market Participants

DAYS AFFECTED:  December 5, 2025

LONG DESCRIPTION:  On December 5, 2025, language associated with the following Revision Requests will be implemented for the Real-Time Co-optimization Plus Batteries (RTC+B) project. Unless otherwise noted, the Revision Request language will be fully implemented:

NOGRR211, RTC - NOG 2 and 9: System Operations and Control Requirements and Monitoring Programs
NOGRR221, Alignment Changes for January 1, 2021 Nodal Operating Guide - NPRRs 1010 and 1039
NOGRR268, Related to NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era

NOGRR276, Alignment Changes for June 1, 2025 Nodal Operating Guide - NPRR1246 and NPRR1270
NOGRR277, Related to NPRR1282, Ancillary Service Duration under Real-Time Co-Optimization
NOGRR278, Related to NPRR1290, Gap Resolutions and Clarifications for the Implementation of RTC+B
NPRR963, Base Point Deviation Settlement and Deployment Performance Metrics for Energy Storage Resources (Combo Model) (Sections 6.6.5.5, 6.6.5.5.1, and 6.6.5.6)
NPRR1000, Elimination of Dynamically Scheduled Resources
NPRR1007, RTC - NP 3: Management Activities for the ERCOT System
NPRR1008, RTC - NP 4: Day-Ahead Operations
NPRR1009, RTC - NP 5: Transmission Security Analysis and Reliability Unit Commitment
NPRR1010, RTC - NP 6: Adjustment Period and Real-Time Operations
NPRR1011, RTC - NP 8: Performance Monitoring
NPRR1012, RTC - NP 9: Settlement and Billing
NPRR1013, RTC - NP 1, 2, 16, and 25: Overview, Definitions and Acronyms, Registration and Qualification of Market Participants, and Market Suspension and Restart
NPRR1014, BESTF-4 Energy Storage Resource Single Model
NPRR1029, BESTF-6 DC-Coupled Resources (Sections 25.5.2, 25.5.5, and 25.5.6)
NPRR1046, Additional Revisions to Remove Dynamically Scheduled Resource (DSR) from the Protocols
NPRR1058, Resource Offer Modernization (Sections 4.4.9.3 and 6.6.9)
NPRR1172, Fuel Adder Definition, Mitigated Offer Caps, and RUC Clawback (Section 5.7.2)
NPRR1204, Considerations of State of Charge with Real-Time Co-Optimization Implementation
NPRR1216, Implementation of Emergency Pricing Program (Phase 1)
NPRR1236, RTC+B Modifications to RUC Capacity Short Calculations
NPRR1245, Additional Clarifying Revisions to Real-Time Co-Optimization
NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era

NPRR1268, RTC - Modification of Ancillary Service Demand Curves 
NPRR1269, RTC+B Three Parameters Policy Issues
NPRR1270, Additional Revisions Required for Implementation of RTC
NPRR1282, Ancillary Service Duration under Real-Time Co-Optimization
NPRR1290, Gap Resolutions and Clarifications for the Implementation of RTC+B
OBDRR020, RTC - Methodology for Setting Maximum Shadow Prices for Network and Power Balance Constraints
OBDRR052, Related to NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era
PGRR118, Related to NPRR1246, Energy Storage Resource Terminology Alignment for the Single-Model Era
VCMRR044, RTC+B - Mitigated Offer Cap for Hydro Generation Resources

ADDITIONAL INFORMATION:  Pursuant to Protocol Section 21.6, Nodal Protocol Revision Implementation, Nodal Operating Guide Section 1.3.5, Nodal Operating Guide Revision Implementation, Planning Guide Section 1.2.5, Planning Guide Revision Implementation, and Verifiable Cost Manual Section 13.6, Verifiable Cost Manual Revision Implementation, ERCOT is required to provide notice as soon as practicable but no later than ten days prior to implementation.  

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.

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