Market Information System Grid and Market Conditions

Nodal Operating Guide

The Nodal Operating Guides, which supplement the Protocols, describe the working relationship between ERCOT and the entities within the ERCOT Region that interact with ERCOT on a minute-to-minute basis to ensure the reliability and security of the ERCOT System.

Specific practices described in the Nodal Operating Guides for the ERCOT System are consistent with the North American Electric Reliability Corporation Reliability Standards and the Protocols.  Nodal Operating Guide Revision Submission Request

Section 1.3 of the Operating Guides outlines the change control process established to announce, develop, revise, and approve the Nodal Operating Guides.  Templates for Nodal Operating Guide Revision Requests (NOGRRs) and other related forms are listed below.  For guidelines on submitting revision requests or comments, please refer to the Revision Request and Comment Submission Guidelines. Completed forms should be submitted to