Market Rules 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

There are currently no open issues.
NOGRR086 Clarification of Seasonal Unit Capability Testing Requirements
NOGRR088 Synchronization with NPRR424, Reactive Capability Testing Requirements for IRRs
NOGRR089 Clarification of Responsibilities for Black Start Resources and QSEs
NOGRR091 Criteria for the Selection of Operators
NOGRR092 Synchronization with NPRR451
NOGRR093 Synchronization with NPRR365
NOGRR094 Administrative Changes for June 1, 2012 Nodal Operating Guides
NOGRR095 Type 2 Special Protection System Submissions
NOGRR096 Clarification of RRS Obligation
NPRR190 Clarification of Resource Definitions and Resource Registration of Self-Serve Generators for Reliability Purposes
NPRR340 Introduction and Definition of Duration-Limited Resources (formerly “Unannounced HSL test for Duration-Limited Resources”)
NPRR385 Security Violation Analysis and Reporting and Negative Price Floor
NPRR416 Creation of the RUC Resource Buyback Provision (formerly “Removal of the RUC Clawback Charge for Resources Other than RMR Units”)
NPRR425 Creation of a Wind Resource Group for GREDP and Base Point Deviation Evaluation
NPRR429 HASL Offset Provision
NPRR436 Clarify the Use of the Defined Term Season and Its Derivatives
NPRR438 Additional Minimum Counter-Party Qualification Requirements, Including Risk Management Capability Requirements
NPRR443 Removal of Switchable Generation Resource Plans from Protected Information
NPRR444 Supplemental Reliability Deployments
NPRR445 DC Tie Load Zone Price Clarification
NPRR446 Correction of Non-Spin Ancillary Service Schedule Telemetry for Standing Non-Spin Deployment
NPRR447 Remove Day- Ahead QSE Requested Decommit Language
NPRR452 Clarification of Reactive Power Requirements
NPRR453 Separation of Year 1 and Year 2 of the Annual CRR Auctions by Timing
NPRR454 Removal of Unfunded Project List Language
NPRR455 CRR Shift Factors Report
NPRR456 Clarification of Definition of Electrically Similar Settlement Points and Heuristic Pricing Posting
NPRR457 Daily Update of New ESI IDs and AMS Meter and Switch Hold Indicators Changes (formerly Conditional TDSP ESIID Attribute Information for 814_20 Transactions)
NPRR458 Establishment of ERCOT’s Central Counterparty Role
NPRR459 Better Matching Forward Collateralization with Forward Risk in the Real-Time Market
NPRR460 WGR Ramp Rate Limitations
NPRR461 Energy Storage Settlements Consistent With PUCT Project 39917
NPRR462 Removal of Consumer Benefit Test from the ERCOT Planning Criteria
NPRR463 CRR Auction Structure Enhancements
NPRR464 SASM Procurement Reporting
NPRR465 Transmission Planning Analysis to Minimize the Need for RMR Units
PGRR017 New Planning Guide Section 6.1, Steady-State Model Development
PGRR018 Clarify the Prerequisites for Adding a New Generation Resource to the Planning Models and Capacity Demand and Reserves Report
PGRR019 New Section 1, Overview
PGRR020 Administrative Changes for the June 1, 2012 Planning Guide
There are currently no open issues.
There are currently no open issues.
There are currently no open issues.
There are currently no open issues.
There are currently no open issues.