Texas Grid Predicts Record Demand as Heat Rises, Wind Power Sags

Markets Contact us:Provide news feedback or report an error Confidential tip?Send a tip to our reporters Site feedback:Take our Survey By Lauren Rosenthal and Julian Hast August 18, 2026 at 7:14 PM UTC The largest Texas grid is bracing for another bout of searing heat that threatens to topple its all-time power demand record yet again, just as wind generation is predicted to take a dive. The Electric Reliability Council of Texas , or Ercot, is predicting peak demand will exceed the current record of 91.089 gigawatts each day from Aug. 20 through Aug. 24, topping it by nearly 1 gigawatt later in the period. Power use is expected to soar as temperatures climb as high as 99F (37C) in Houston and 105F in Dallas with heat indexes nearing 110F, prompting homes and businesses to crank up air conditioners.