Market Information System Grid and Market Conditions

News Release

May 26, 2021

ERCOT to test emergency notification system

Grid operator verifying communications channels prior to summer

AUSTIN, TX, May 26, 2021 – As part of ERCOT’s aggressive pre-summer preparation activities, the grid operator will test its automated emergency grid conditions communication system this evening, Wednesday, May 26, beginning at 7 p.m.

No action is required.

What does this mean?

During this time, test messages will be deployed and/or sent to multiple ERCOT communications channels at the beginning and end of the test, including:

  • ERCOT’s Twitter page (@ERCOT_ISO)
  • ERCOT mobile app
  • EmergencyAlerts email distribution list
  • Spotlight on the home page of
  • Operations Messages and Public Notices on

Please see our market notice for more information.

During a potential grid event, ERCOT uses this automated notification system to send timely communications through these channels directly from the control room.



The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to more than 26 million Texas customers -- representing about 90 percent of the state’s electric load. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects more than 46,500 miles of transmission lines and 710+ generation units. It also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for nearly 8 million premises in competitive choice areas.

ERCOT is a membership-based 501(c)(4) nonprofit corporation, governed by a board of directors and subject to oversight by the Public Utility Commission of Texas and the Texas Legislature. Its members include consumers, cooperatives, generators, power marketers, retail electric providers, investor-owned electric utilities, transmission and distribution providers and municipally owned electric utilities.