NOTICE DATE: May 25, 2022

NOTICE TYPE: M-B051822-02 Operations

SHORT DESCRIPTION: Test of ERCOT's automated emergency notification system rescheduled

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: Thursday, June 2, 2022, 8:00 a.m. - 9:00 a.m.

LONG DESCRIPTION: The test of ERCOT's automated emergency notification system planned for Thursday, May 26, 2022, has been rescheduled. The test will now take place on Thursday, June 2, 2022. It will begin at approximately 8:00 a.m. CPT. This test will result in the following:

• Temporary change of the "Normal Conditions" display on the Grid Conditions dashboard on ERCOT.com;
• Test message posted to ERCOT's Twitter account;
• Pop-up alert and notification message on the ERCOT mobile app;
• Test message to the Grid Emergency Alerts email distribution list; and
• Test message on the Operations Messages and Public Notices pages on ERCOT.com.

ACTION REQUIRED: No action is required.

ADDITIONAL INFORMATION: Stay informed with ERCOT messaging by downloading the ERCOT mobile app, subscribing to Grid Emergency Alerts, reviewing ERCOT's Use of Energy Conservation, and viewing the Energy Emergency Alert Communications Matrix.

Please review the ERCOT website for previous Market Notices related to this subject.

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.

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