May 18 — The grid operator for most of the Lone Star State, the Electric Reliability Council of Texas (ERCOT), said in a pair of tweets that it set all-time May peak demand records, the last between 5 p.m. and 6 p.m. when demand reached 61.5 GW — more than 2.2 GW higher than the previous May record set last year.

— Utility Dive