A photograph taken on March 4 by a drone shows the Gambit Energy Storage Park in Angleton, Texas. The utility-scale battery project is owned by a Tesla subsidiary.

A photograph taken on March 4 by a drone shows the Gambit Energy Storage Park in Angleton, Texas. The utility-scale battery project is owned by a Tesla subsidiary.

Photographer: Mark Felix/Bloomberg

Hyperdrive

Tesla Is Plugging a Secret Mega-Battery Into the Texas Grid

The utility-scale battery located outside of Houston will connect to the same grid that faltered in February’s freeze

Elon Musk is getting into the Texas power market, with previously unrevealed construction of a gigantic battery connected to an ailing electric grid that nearly collapsed last month. The move marks Tesla Inc.’s first major foray into the epicenter of the U.S. energy economy.

A Tesla subsidiary registered as Gambit Energy Storage LLC is quietly building a more than 100 megawatt energy storage project in Angleton, Texas, a town roughly 40 miles south of Houston. A battery that size could power about 20,000 homes on a hot summer day. Workers at the site kept equipment under cover and discouraged onlookers, but a Tesla logo could be seen on a worker’s hard hat and public documents helped confirm the company’s role.