TotalEnergies SE, which has a bevy of U.S. energy assets, has agreed to pay $635 million to buy three natural gas-fired power plants in Texas to ensure customers have firm power and to bolster integrated power purchase agreements (PPA).

The deal with TexGen Power LLC includes two facilities that serve the Houston area and one that serves the Dallas region. Combined joint capacity is 1.5 GW, and each facility is connected to the state’s grid through the Electric Reliability Council of Texas (ERCOT).

“After the signing of several corporate PPA over the last couple of years and the recent start-up of the utility-scale Myrtle solar plant, this deal is a major milestone for our integrated power strategy in the ERCOT market,” said TotalEnergies’ Stephane Michel, president of...