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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 |
|---|---|
| SMOGRR025 | Modifications to Line Loss Compensation Requirement for EPS Metering |
| VCMRR031 | Clarification Related to Variable Costs in Fuel Adders |
| VCMRR032 | Calculation of Average Running Hours per Start when Determining the Variable O&M for QSGRs |
| OBDRR034 | Related to NPRR1099, Managing Network Operations Model Resource Nodes |
| OBDRR037 | Power Balance Penalty Updates to Align with PUCT Approved High System-Wide Offer Cap |
| OBDRR038 | Minimum Contingency Level Updates to Align with PUCT Order |
| PGRR073 | Related to NPRR956, Designation of Providers of Transmission Additions |
| PGRR095 | Establish Minimum Deliverability Criteria |
| PGRR096 | Achieve Consistent Representation of Distributed Generation in Steady-State Models |
| PGRR098 | Consideration of Load Shed in Transmission Planning Criteria |
| PGRR099 | Revise GIM Process to Ensure Compliance with the Lone Star Infrastructure Protection Act |
| PGRR100 | Steady-State Case Building Timeline Update |
| RMGRR166 | Revising Timing for Switch Hold Extract Availability |
| RMGRR168 | Modify ERCOT Responsibilities During the Mass Transition |
| RMGRR169 | Related to NPRR1095, Texas SET V5.0 Changes |
| NOGRR215 | Limit Use of Remedial Action Schemes |
| NOGRR226 | Revision to 5% Transmission Operator (TO) Load Shedding Relay Set Point |
| NOGRR230 | WAN Participant Security |
| NOGRR234 | Related to NPRR1098, Direct Current Tie (DC Tie) Reactive Power Capability Requirements |
| NOGRR235 | Combining Greyboxes and Other Corrections |
| NOGRR239 | WAN Data Protection Responsibilities |
| SCR816 | CRR Auction Bid Credit Enhancement |
| SCR817 | Related to NPRR1095, MarkeTrak Validation Revisions Aligning with Texas SET V5.0 |
| SCR818 | Changes to Incorporate GIC Modeling Data into Existing Modeling Applications |
| SCR819 | Improving IRR Control to Manage GTC Stability Limits |
| SCR820 | Operator Real-Time Messaging During Emergency |
| 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 |
| NPRR1092 | Reduce RUC Offer Floor and Remove RUC Opt-Out Provision |
| NPRR1095 | Texas SET V5.0 Changes |
| NPRR1096 | Require Sustained Six Hour Capability for ECRS and Non-Spin |
| NPRR1097 | Create Resource Forced Outage Report |
| NPRR1098 | Direct Current Tie (DC Tie) Reactive Power Capability Requirements |
| NPRR1099 | Managing Network Operations Model Resource Nodes |
| NPRR1100 | Emergency Switching Solutions for Energy Storage Resources |
| NPRR1102 | ERCOT Discretion for Adjusting Non-Interval Data Recorder (NIDR) Backcasted Load Profiles |
| NPRR1108 | ERCOT Shall Approve or Deny All Resource Outage Requests |
| NPRR1110 | Black Start Requirements Update |
| NPRR1111 | Related to SCR819, Improving IRR Control to Manage GTC Stability Limits |
| NPRR1112 | Elimination of Unsecured Credit Limits |
| NPRR1113 | Clarification of Regulation-Up Schedule for Controllable Load Resources in Ancillary Service Imbalance |
| NPRR1114 | Securitization – PURA Subchapter N Uplift Charges |
| NPRR1115 | Administrative Changes for February 1, 2022 Nodal Protocols - Update ERCOT Austin Office Address |
| NPRR1116 | Remove Obsolete Reference to Market Information System (MIS) |
| NPRR1117 | Related to SMOGRR025, Modifications to Line Loss Compensation Requirement for EPS Metering |