SpaceX plans a gas-fired power plant and large battery array for the Texas Terafab semiconductor facility.

SpaceX plans to construct dedicated power infrastructure for Terafab, the large semiconductor manufacturing facility being developed with Tesla in Grimes County, Texas. Riley Trettel, who oversees SpaceX energy and data-center development, said the project would be self-sufficient.

The planned infrastructure includes a gas-fired power plant and what Trettel described as a very large battery array for energy storage. The source does not provide the generating capacity, storage capacity, equipment suppliers or construction timetable.

Tesla already produces utility-scale Megapack battery systems and operates a Megapack factory west of Houston. Elon Musk separately gave a rough estimate that approximately 25% of Terafab’s AI-compute output would serve Tesla Optimus and about 75% would support AI spacecraft, explicitly characterizing that allocation as approximate.