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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 |
|---|---|
| SMOGRR028 | Add Series Reactor Compensation Factors |
| VCMRR039 | Related to NPRR1216, Implementation of Emergency Pricing Program |
| VCMRR040 | Methodology for Calculating Fuel Adders for Coal-Fired Resources |
| VCMRR041 | SO2 and NOx Emission Prices Used in Verifiable Cost Calculations |
| OBDRR046 | Related to NPRR1188, Implement Nodal Dispatch and Energy Settlement for Controllable Load Resources |
| OBDRR051 | Related to NPRR1216, Implementation of Emergency Pricing Program |
| PGRR073 | Related to NPRR956, Designation of Providers of Transmission Additions |
| PGRR106 | Clarify Projects Included in Transmission Project Information and Tracking (TPIT) Report |
| PGRR107 | Related to NPRR1180, Inclusion of Forecasted Load in Planning Analyses |
| PGRR112 | Dynamic Data Model and Full Interconnection Study (FIS) Deadline for Quarterly Stability Assessment |
| PGRR113 | Related to NPRR1198, Congestion Mitigation Using Topology Reconfigurations |
| PGRR114 | Related to NPRR1212, Clarification of Distribution Service Provider’s Obligation to Provide an ESI ID |
| PGRR115 | Related to NPRR1234, Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater |
| RMGRR181 | Alignment of Defined Term Usage and Resolution of Inconsistencies |
| NOGRR245 | Inverter-Based Resource (IBR) Ride-Through Requirements |
| NOGRR255 | High Resolution Data Requirements |
| NOGRR258 | Related to NPRR1198, Congestion Mitigation Using Topology Reconfigurations |
| NOGRR262 | Provisions for Operator-Controlled Manual Load Shed |
| NOGRR263 | Clarification of Controllable Load Resource Primary Frequency Response Responsibilities |
| NOGRR264 | Related to NPRR1235, Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service |
| NOGRR265 | Related to NPRR1238, Voluntary Registration of Loads with Curtailable Load Capabilities |
| SCR826 | ERCOT.com Enhancements |
| SCR827 | Grid Conditions Graph Addition for Operating Reserve Demand Curve (ORDC) Level |
| NPRR956 | Designation of Providers of Transmission Additions |
| NPRR1070 | Planning Criteria for GTC Exit Solutions |
| NPRR1180 | Inclusion of Forecasted Load in Planning Analyses |
| NPRR1188 | Implement Nodal Dispatch and Energy Settlement for Controllable Load Resources |
| NPRR1190 | High Dispatch Limit Override Provision for Increased Load Serving Entity Costs |
| NPRR1198 | Congestion Mitigation Using Topology Reconfigurations |
| NPRR1200 | Utilization of Calculated Values for Non-WSL for ESRs |
| NPRR1202 | Refundable Deposits for Large Load Interconnection Studies |
| NPRR1212 | Clarification of Distribution Service Provider’s Obligation to Provide an ESI ID |
| NPRR1214 | Reliability Deployment Price Adder Fix to Provide Locational Price Signals, Reduce Uplift and Risk |
| NPRR1215 | Clarifications to the Day-Ahead Market (DAM) Energy-Only Offer Calculation |
| NPRR1216 | Implementation of Emergency Pricing Program |
| NPRR1217 | Remove Verbal Dispatch Instruction (VDI) Requirement for Deployment and Recall of Load Resources and Emergency Response Service (ERS) Resources |
| NPRR1218 | REC Program Changes Per P.U.C. SUBST. R. 25.173, Renewable Energy Credit Program |
| NPRR1219 | Methodology Revisions and New Definitions for the Report on Capacity, Demand and Reserves in the ERCOT Region (CDR) |
| NPRR1220 | Market Restart Approval Process Modifications |
| NPRR1221 | Related to NOGRR262, Provisions for Operator Controlled Manual Load Shed |
| NPRR1222 | Public Utility Commission of Texas Approval of the Methodology for Determining Ancillary Service Requirements |
| NPRR1223 | Addition of TA Contact Information Into TDSP Application Form |
| NPRR1224 | ECRS Manual Deployment Triggers |
| NPRR1225 | Exclusion of Lubbock Load from Securitization Charges |
| NPRR1226 | Demand Response Monitor |
| NPRR1227 | Related to RMGRR181, Alignment of Defined Term Usage and Resolution of Inconsistencies |
| NPRR1228 | Continued One-Winter Procurements for Firm Fuel Supply Service (FFSS) |
| NPRR1229 | Real-Time Constraint Management Plan Energy Payment |
| NPRR1230 | Methodology for Setting Transmission Shadow Price Caps for an IROL in SCED |
| NPRR1231 | FFSS Program Communication Improvements and Additional Clarifications |
| NPRR1232 | Standing Deployment of ECRS in the Operating Hour for a Portion of ECRS that is Provided from SCED-Dispatchable Resources |
| NPRR1233 | Modification of Weatherization Inspection Fees on the ERCOT Fee Schedule |
| NPRR1234 | Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater |
| NPRR1235 | Dispatchable Reliability Reserve Service as a Stand-Alone Ancillary Service |
| NPRR1236 | RTC+B Modifications to RUC Capacity Short Calculations |
| NPRR1237 | Retail Market Qualification Testing Requirements |
| NPRR1238 | Voluntary Registration of Loads with Curtailable Load Capabilities |