A presentation given by ERCOT officials on Monday warned that a combination of sustained high electricity demand and a high number of power plants going offline for unplanned maintenance could lead to a Level 1 Energy Emergency.

A day later, Texas’ main grid operator issued just such a warning as record temperatures drove up demand to a new record and some 3,000 megawatts of generation capacity was out of service for unexpected issues.

The presentation was given during a web-based meeting of ERCOT’s Generation Adequacy Task Force, one of several technical groups made up of officials from ERCOT, power plant operators, local utilities and other industry participants.

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