NOTICE DATE: June 3, 2024

NOTICE TYPE: M-A062323-03 General

SHORT DESCRIPTION: Notice of Change of Access to Postings in the Market Information System Secure Area

INTENDED AUDIENCE: User Security Administrators (USAs) and Digital Certificate Holders

DAYS AFFECTED: June 27, 2024, 15:30 - 16:30

LONG DESCRIPTION: The postings on the attached list were classified as ERCOT Critical Energy Infrastructure Information (ECEII) pursuant to Protocol Section 2.1 beginning January 25, 2024, following Market Notice M-A062323-02, issued December 20, 2023. Two postings have been removed from the list: NP6-619-ER, State Estimator 60-Day Delayed Transmission Line Flows and NP6-622-ER, State Estimator 60-Day Delayed Transformer Information.

ADDITIONAL INFORMATION: Beginning June 27, 2024 at approximately 5 p.m., NP6-619-ER, State Estimator 60-Day Delayed Transmission Line Flows and NP6-622-ER, State Estimator 60-Day Delayed Transformer Information will no longer be identified as ECEII on the ERCOT Market Information List (EMIL).

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 ClientServices@ercot.com.

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