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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
SMOGRR027 Move OBD to Settlement Metering Operating Guide – EPS Metering Design Proposal
SMOGRR028 Add Series Reactor Compensation Factors
SMOGRR030 Move OBD to Settlement Metering Operating Guide – EPS Metering Facility Temporary Exemption Request Application Form
RRGRR036 Related to NPRR1191, Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater
VCMRR039 Related to NPRR1216, Implementation of Emergency Pricing Program
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
LPGRR074 Align Definitions of IDRRQ, LRG, and LRGDG
PGRR105 Deliverability Criteria for DC Tie Imports
PGRR106 Clarify Projects Included in Transmission Project Information and Tracking (TPIT) Report
PGRR107 Related to NPRR1180, Inclusion of Forecasted Load in Planning Analyses
PGRR109 Dynamic Model Review Process Improvement for Inverter-Based Resource (IBR) Modification
PGRR111 Related to NPRR1191, Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater
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
RMGRR177 Switch Hold Removal Clarification
RMGRR179 TDSP Temporary Emergency Electric Energy Facility (TEEEF) Deployment Transactional Processing
RMGRR180 Administrative Change for Retail Market Guide – Update LP&L After-Hour RNP Email Addresses
NOGRR245 Inverter-Based Resource (IBR) Ride-Through Requirements
NOGRR255 High Resolution Data Requirements
NOGRR256 Related to NPRR1191, Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater
NOGRR258 Related to NPRR1198, Congestion Mitigation Using Topology Reconfigurations
NOGRR261 Move OBD to Section 8 – Procedure for Calculating RRS Limits for Individual Resources
SCR825 ERCOT Voice Communications Aggregation
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
NPRR1162 Single Agent Designation for a QSE and its Sub-QSEs for Voice Communications over the ERCOT WAN
NPRR1170 Submission of Gas Supply Disruption
NPRR1179 Fuel Purchase Requirements for Resources Submitting RUC Fuel Costs
NPRR1180 Inclusion of Forecasted Load in Planning Analyses
NPRR1186 Improvements Prior to the RTC+B Project for Better ESR State of Charge Awareness, Accounting, and Monitoring
NPRR1188 Implement Nodal Dispatch and Energy Settlement for Controllable Load Resources
NPRR1190 High Dispatch Limit Override Provision for Increased NOIE Load Costs
NPRR1191 Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater
NPRR1193 Related to SMOGRR027, Move OBD to Settlement Metering Operating Guide – EPS Metering Design Proposal
NPRR1195 Resource Entity Metering Facilities Maintenance
NPRR1197 Optional Exclusion of Load from Netting at ERCOT-Polled Settlement (EPS) Metering Facilities which Include Resources
NPRR1198 Congestion Mitigation Using Topology Reconfigurations
NPRR1199 Implementation of Lone Star Infrastructure Protection Act (LSIPA) Requirements
NPRR1200 Utilization of Calculated Values for Non-WSL for ESRs
NPRR1202 Refundable Deposits for Large Load Interconnection Studies
NPRR1205 Revisions to Credit Qualification Requirements of Banks and Insurance Companies
NPRR1206 Revisions to QSE Operations and Termination Requirements, and Elimination of Providing Certain Market Participant Principal Information
NPRR1207 Incidental Disclosure of Protected Information and ECEII During ERCOT Control Room Tours
NPRR1208 Creation of Invoice Report
NPRR1210 Next Start Resource Test and Load-Carrying Test Frequency
NPRR1211 Move OBD to Section 22 – Methodology for Setting Maximum Shadow Prices for Network and Power Balance Constraints
NPRR1212 Clarification of Distribution Service Provider’s Obligation to Provide an ESI ID
NPRR1213 Allow DGRs and DESRs on Circuits Subject to Load Shed to Provide ECRS and Clarify Language Regarding DGRs and DESRs Providing Non-Spin
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)