The operator of Texas’ main power grid has asked residents to conserve power until the end of the week, citing “tight grid conditions” amid potential record demand.
The Electric Reliability Council of Texas said in a statement that the state’s power grid ― which operates separately from the rest of the country ― is facing a number of power plant outages combined with heightened electricity use.
Generator owners have reported about 11,000 megawatts of forced outage for repairs, according to ERCOT. Of that number, about 8,000 megawatts are thermal; the rest are intermittent resources. A typical range of thermal generation outages on hot summer days is about 3,600 megawatts. One megawatt normally powers about 200 homes on a summer day, meaning the offline energy generation is enough to power 2.2 million homes on a hot summer day.
ERCOT’s peak June energy demand record was 69,123 megawatts on June 27, 2018. The peak demand on Monday is expected to exceed 73,000 megawatts.