NOTICE DATE: April 29, 2022

NOTICE TYPE: M-A042922-01 Operations

SHORT DESCRIPTION: Updated data specifications and mapping document for NERC Reliability Standards IRO-010-3 and TOP-003-4

INTENDED AUDIENCE: NERC registered Generator Owners, Generator Operators, Transmission Operators, Transmission Owners, and Distribution Providers

DAYS AFFECTED: April 29, 2022

LONG DESCRIPTION: ERCOT maintains a mapping document for its data specifications necessary to perform its Operational Planning Analysis, Real-Time Monitoring, and Real-Time Assessments pursuant to North American Electric Reliability Corporation (NERC) Reliability Standards IRO-010-3 and TOP-003-4. ERCOT revised its NERC IRO 010 and TOP 003 Mapping Document as of April 29, 2022. Changes from the prior version of the mapping document were discussed at the Texas RE NERC Standards Review Forum (NSRF) meeting on April 28, 2022.

ADDITIONAL INFORMATION: The NERC IRO 010 and TOP 003 Mapping Document is posted under Key Documents on the Compliance page of the ERCOT website. As of April 29, 2022, the current version is v.10.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

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