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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 |
| RRGRR033 | Related to NPRR1164, Black Start and Isochronous Control Capable Identification |
| VCMRR034 | Excluding RUC Approved Fuel Costs from Fuel Adders |
| RRGRR035 | Related to NPRR1171, Requirements for DGRs and DESRs on Circuits Subject to Load Shedding |
| RRGRR036 | Related to NPRR1191, Registration, Interconnection, and Operation of Customers with Large Loads; Information Required of Customers with Loads 25 MW or Greater |
| OBDRR045 | Additional Revisions to Demand Response Data Definitions and Technical Specifications |
| OBDRR046 | Related to NPRR1188, Implement Nodal Dispatch and Energy Settlement for Controllable Load Resources |
| OBDRR048 | Implementation of Operating Reserve Demand Curve (ORDC) Multi-Step Price Floor |
| LPGRR070 | Discontinuation of Interval Data Recorder (IDR) Meter Weather Sensitivity Process |
| PGRR073 | Related to NPRR956, Designation of Providers of Transmission Additions |
| PGRR103 | Establish Time Limit for Generator Commissioning Following Approval to Synchronize |
| 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 |
| PGRR108 | Related to NPRR1183, ECEII Definition Clarification and Updates to Posting Rules for Certain Documents without ECEII |
| PGRR109 | Dynamic Model Review Process Improvement for Inverter-Based Resource (IBR) Modification |
| PGRR110 | Revision to Accommodate Steady-State Node-Breaker Modeling |
| 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 |
| RMGRR174 | Related to NPRR1173, Changes Consistent With the Options Available to an MOU and EC Entering Retail Competition in the ERCOT Market |
| NOGRR215 | Limit Use of Remedial Action Schemes |
| NOGRR230 | WAN Participant Security |
| NOGRR245 | Inverter-Based Resource (IBR) Ride-Through Requirements |
| NOGRR247 | Change UFLS Stages and Load Relief Amounts |
| NOGRR249 | Communication of System Operating Limit Exceedances |
| NOGRR250 | Related to NPRR 1171, Requirements for DGRs and DESRs on Circuits Subject to Load Shedding |
| NOGRR251 | Add Cold Weather Conditions to Template for Emergency Operations Plan |
| NOGRR252 | Related to NPRR1176, Update to EEA Trigger Levels |
| 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 |
| NOGRR257 | Removal of Redundant ERS Reporting Requirement |
| NOGRR258 | Related to NPRR1198, Congestion Mitigation Using Topology Reconfigurations |
| SCR824 | Increase File Size and Quantity Limits for RIOO Attachments |
| 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 |
| NPRR1150 | Related to NOGRR230, WAN Participant Security |
| NPRR1162 | Single Agent Designation for a QSE and its Sub-QSEs for Voice Communications over the ERCOT WAN |
| NPRR1163 | Related to LPGRR070, Discontinuation of Interval Data Recorder (IDR) Meter Weather Sensitivity Process |
| NPRR1164 | Black Start and Isochronous Control Capable Identification |
| NPRR1165 | Revisions to Requirements of Providing Audited Financial Statements and Providing Independent Amount |
| NPRR1170 | Capturing Natural Gas Delivery Information for Natural Gas Generation Resources |
| NPRR1171 | Requirements for DGRs and DESRs on Circuits Subject to Load Shedding |
| NPRR1172 | Fuel Adder Definition, Mitigated Offer Caps, and RUC Clawback |
| NPRR1173 | Changes Consistent With the Options Available to an MOU and EC Entering Retail Competition in the ERCOT Market |
| NPRR1174 | Market Participant’s Return of Settlement Funds to ERCOT Following Receipt of Overpayment |
| NPRR1175 | Revisions to Market Entry Financial Qualifications and Continued Participation Requirements |
| NPRR1176 | Update to EEA Trigger Levels |
| NPRR1179 | Fuel Purchase Requirements for Resources Submitting RUC Fuel Costs |
| NPRR1180 | Inclusion of Forecasted Load in Planning Analyses |
| NPRR1181 | Submission of Seasonal Coal and Lignite Inventory Declaration |
| NPRR1182 | Inclusion of Controllable Load Resources and Energy Storage Resources in the Constraint Competitiveness Test Process |
| NPRR1183 | ECEII Definition Clarification and Updates to Posting Rules for Certain Documents without ECEII |
| NPRR1184 | Update to Procedures for Managing Interest on Cash Collateral |
| NPRR1185 | HDL Override Payment Provisions for Verbal Dispatch Instructions |
| 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 |
| NPRR1189 | Updates to Language to Clarify the Allowable Regulation Ancillary Service Trades |
| 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 |
| NPRR1192 | Move OBD to Section 22 – Requirements for Aggregate Load Resource Participation in the ERCOT Markets |
| NPRR1193 | Related to SMOGRR027, Move OBD to Settlement Metering Operating Guide – EPS Metering Design Proposal |
| NPRR1194 | Wholesale Storage Load Auxiliary Netting |
| NPRR1195 | Resource Entity Metering Facilities Maintenance |
| NPRR1196 | Correction of NCLR Ancillary Service Failed Quantity Calculations under NPRR1149 |
| NPRR1197 | Energy Storage Resource (ESR) Non-Charging Load(s) Optional Exclusion from EPS Netting Arrangement |
| 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 |
| NPRR1201 | Limitations on Resettlement Timeline and Default Uplift Exposure Adjustments |
| NPRR1202 | Refundable Deposits for Large Load Interconnection Studies |