U.S. House Oversight Committee investigating operator of Texas' power grid Bryan Mena, The Texas Tribune March 3, 2021 FacebookTwitterEmail Rep. Ro Khanna, D-Calif. will lead an investigation by the House Oversight committee into ERCOT's handling of February's disastrous winter storm in Texas.Bill Clark / CQ-Roll Call Inc. A U.S. House subcommittee is investigating the operator of Texas’ power grid for its role in leaving millions without electricity during the destructive winter storm that hammered the state two weeks ago. U.S. Rep. Ro Khanna, D-California, chairman of the Subcommittee on Environment for the U.S. House Committee on Oversight and Reform wrote in a scathing letter addressed to Bill Magness, the Electric Reliability Council of Texas’ chief executive, that the grid’s failures were “costly” and disproportionately affected low-income and communities of color.