NOTICE DATE: February 10, 2026

NOTICE TYPE: M-B021026-01 General

SHORT DESCRIPTION: Notice of ERCOT Reliability Monitor (ERM) Compliance Audit

INTENDED AUDIENCE: Resource Entities

DAYS AFFECTED: January 1, 2016 through December 31, 2025

LONG DESCRIPTION: Pursuant to the ERM Scope of Work approved by the Public Utility Commission of Texas (PUC), the ERM will conduct an audit of Market Participant compliance with Nodal Operating Guides 2.2.5(2):

              2.2.5    Automatic Voltage Regulators

(2) Resource Entities shall conduct tests for the purpose of model verification on AVRs or verify AVR performance through comparison with operational data a minimum of every ten calendar years.  All new Generation Resources shall conduct an AVR test as prescribed in paragraph (4) of Protocol Section 8.1.1.2.1.4, Voltage Support Service Qualification, within five years of the initial AVR test approved as part of the commissioning process.  All subsequent tests shall be conducted on a ten year cycle.  

(a) Resource Entities will provide the test data or verified dynamic models to ERCOT by submittal to the Net Dependable Capability and Reactive Capability (NDCRC) application located on the MIS Secure Area or by updated its Resource Registration information respectively.

If the ERM needs any information from you in connection with the audit, you will hear directly from ERM staff.

ADDITIONAL INFORMATION: After completing the compliance audit, the ERM will report the results to the PUC.

CONTACT: If you have any questions, please contact the ERM at ERM@ercot.com. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.

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