NOTICE DATE: September 11, 2026

NOTICE TYPE: M-A091126-01 Education/Training

SHORT DESCRIPTION: ERCOT Reliability Monitor Stakeholder Training

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: October 13, 2026 at 1:30 P.M.

LONG DESCRIPTION: On November 3, 2022, the Public Utility Commission of Texas (PUC) in Project No. 54248 directed the Electric Reliability Council of Texas, Inc. (ERCOT) to assume the duties of the Reliability Monitor (ERM) defined in 16 Texas Administrative Code Section25.503(k) and (l). The ERM evaluates both ERCOT and Market Participant compliance with state reliability requirements (i.e., reliability-related requirements of the Public Utility Regulatory Act, ERCOT Protocols, ERCOT Other Binding Documents, and PUC rules).

On October 13, 2026, at 1:30 p.m., the ERM will hold an in-person informational presentation, with a virtual attendance option, to describe the ERM function and processes and what stakeholders can expect from an ERM investigation. The presentation will take place at ERCOT's Austin location (8000 Metropolis, Building E, Suite 100, Austin, TX 78744). Market Participants are encouraged to attend the informational presentation to learn more about the ERM function. This presentation is provided as a refresher to the training presentation that was provided to Market Participants in July 2023.

Questions during the presentations will be welcome; however, Market Participants are encouraged to submit questions in advance by email to: ERM@ercot.com using the subject line: MP Question re ERM Informational Presentation. Questions submitted prior to 5:00 p.m. on September 29, 2026 will be answered during the informational session. The ERM will also post a Q&A log to its webpage below.

ACTION REQUIRED: To have questions answered during the session, submit questions in advance to: ERM@ercot.com using the subject line: MP Question re ERM Informational Presentation by 5:00 p.m. on September 29, 2026.

ADDITIONAL INFORMATION: Visit ERM's webpage for additional information: https://www.ercot.com/about/reliability-monitor.

ERCOT's Meeting Calendar webpage for this event includes the WebEx meeting information for virtual attendance.

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.

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