FILE - In this Feb. 21, 2021 file photo, water trickles from a fire hydrant while City of Austin Water Utility workers repair a broken water main in Austin, Texas, due to severe winter weather. The winter storm nightmare knocked out power to more than 4 million customers across the state. On Thursday, Feb. 25 managers of Texas' power grid are expected to receive a verbal lashing in the first public hearings about the crisis at the state Capitol. (Jay Janner/Austin American-Statesman via AP, File)