Houston heat: ERCOT surpasses all-time grid demand record

It's official as the all-time record demand high for the ERCOT grid has been surpassed. 

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The old record of 80,148 MW was passed with a new record of 80,251 MW. 

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Another record high could be set tonight or during the day on Wednesday. 

FOX 26 is continuing to monitor the latest on the Texas power grid. We'll keep you up-to-date with the latest as it occurs.