NOTICE DATE: February 23, 2023

NOTICE TYPE: M-A022323-01 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: February 23, 2023

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 February 23, 2023. Changes from the prior version of the mapping document were discussed at the Texas RE NERC Standards Review Forum (NSRF) meeting on February 23, 2023.

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 February 23, 2023, the current version is v.11.

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].

If you are receiving email from a public ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.

dg