NOTICE DATE: May 30, 2023

NOTICE TYPE: M-A051923-03 General

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

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: May 30, 2023, 17:00 - 19:00

LONG DESCRIPTION: Today, May 30, ERCOT will conduct a performance test on as well as a test of its automated emergency notification system. The testing may cause some degradation and slowness for users accessing the site. This test will begin at approximately 5:00 p.m. CPT and will result in the following:

ADDITIONAL INFORMATION: Users may experience minimal impact to performance and functionality during Wednesday's test window, including slower response times. 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.

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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