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Market Rules
Balanced market rules are a basic element in Texas competition. Clear, predictable and well-designed rules help foster a stable electricity market. Electric Reliability Council of Texas (ERCOT) market rules are developed by participants from all aspects of the electricity industry. The rules and amendments are reviewed by the Public Utility Commission of Texas to ensure that they satisfy the public interest.
In this section, you will find the ERCOT protocols, guides, policies and procedures that help steer the Texas market participants.
Pending Revision Requests and Issues
| Issue | Title |
|---|---|
| VCMRR031 | Clarification Related to Variable Costs in Fuel Adders |
| RRGRR032 | Related to NPRR1132, Communicate Operating Limitations during Cold and Hot Weather Conditions |
| OBDRR040 | ORDC Changes Related to NPRR1131, Controllable Load Participation in Non-Spin |
| OBDRR041 | Updates to Requirements for Aggregate Load Participation in the ERCOT Markets |
| PGRR073 | Related to NPRR956, Designation of Providers of Transmission Additions |
| PGRR100 | Steady-State Case Building Timeline Update |
| PGRR101 | Related to NPRR1133, Clarify Responsibilities for Submission of Planning Model Data for DC Ties |
| RMGRR168 | Modify ERCOT's Mass Transition Responsibilities |
| NOGRR215 | Limit Use of Remedial Action Schemes |
| NOGRR226 | Revision to 5% Transmission Operator (TO) Load Shedding Relay Set Point |
| NOGRR230 | WAN Participant Security |
| NOGRR240 | Direct Current Tie (DC Tie) Ride-Through Requirements |
| NOGRR241 | Related to NPRR1127, Clarification of ERCOT Hotline Uses |
| SCR820 | Operator Real-Time Messaging During Emergency |
| SCR821 | Voltage Set Point Target Information for Distribution Generation Resource (DGR) or Distribution Energy Storage Resource (DESR) |
| SCR822 | Create Daily Energy Storage Integration Report and Dashboard |
| NPRR956 | Designation of Providers of Transmission Additions |
| NPRR981 | Day-Ahead Market Price Correction Process |
| NPRR1058 | Resource Offer Modernization for Real-Time Co-Optimization |
| NPRR1067 | Market Entry Qualifications, Continued Participation Requirements, and Credit Risk Assessment |
| NPRR1070 | Planning Criteria for GTC Exit Solutions |
| NPRR1084 | Improvements to Reporting of Resource Outages and Derates |
| NPRR1085 | Ensuring Continuous Validity of Physical Responsive Capability (PRC) and Dispatch through Timely Changes to Resource Telemetry and Current Operating Plans (COPs) |
| NPRR1088 | Applying Forward Adjustment Factors to Forward Market Positions and Un-applying Forward Adjustment Factors to Prior Market Positions |
| NPRR1089 | Requiring Highest-Ranking Representative, Official, or Officer of a Resource Entity to Execute Weatherization and Natural Gas Declarations |
| NPRR1100 | Allow Generation Resources and Energy Storage Resources to Serve Customer Load When the Customer and the Resource are Disconnected from the ERCOT System |
| NPRR1110 | Black Start Requirements Update |
| NPRR1112 | Reduction of Unsecured Credit Limits |
| NPRR1118 | Clarifications to the OSA Process |
| NPRR1119 | Removal of Extraneous Language Pertaining to the Calculation of Weekly Generation and Load Resource Capacity Forecasts |
| NPRR1121 | Add a Posting Requirement to the Exceptional Fuel Cost Submission Process |
| NPRR1126 | Default Uplift Allocation Enhancement |
| NPRR1127 | Clarification of ERCOT Hotline Uses |
| NPRR1128 | Allow FFR Procurement up to FFR Limit Without Proration |
| NPRR1129 | Posting ESI IDs of Transmission-Voltage Customer Opt-Outs |
| NPRR1130 | Weatherization Inspection Fees Sunset Date Extension |
| NPRR1131 | Controllable Load Resource Participation in Non-Spin |
| NPRR1132 | Communicate Operating Limitations during Cold and Hot Weather Conditions |
| NPRR1133 | Clarify Responsibilities for Submission of Planning Model Data for DC Ties |
| NPRR1134 | Related to RMGRR168, Modify ERCOT’s Mass Transition Responsibilities |
| NPRR1135 | Add On-Line Status Check for Resources Telemetering OFFNS for Ancillary Service Imbalance Settlements |
| NPRR1136 | Updates to Language Regarding a QSE Moving Ancillary Service Responsibility Between Resources |