Ambrosia Energy begins work on 10-gwh Texas battery factory. The 150,000-square-foot facility near Austin is expected to reach full production in two to three years as the startup develops power plants for data centers. Published Oct 14, 2026, 3:54 PM EDT Ambrosia Energy has begun work on a battery factory near Austin, Texas, with planned annual capacity of 10 gigawatt-hours, supporting its effort to build power plants for data centers. The factory will span 150,000 square feet and is expected to reach full production in two to three years. Co-founder and CEO Ben Longmier said its output could support about 300 megawatts of power-plant capacity annually. Ambrosia plans to begin work later this year on its first commercial power plant in West Texas. The project is designed to combine 300 megawatts of solar panels with 660 megawatt-hours of batteries, supplying 30 megawatts of continuous power with a target uptime of 99.3%. The company's system uses solar panels to power a data center during daylight hours and charge batteries. Those batteries are intended to supply power at night and on cloudy days, keeping the facility running around the clock. Longmier has said Ambrosia aims to provide power at $100 per megawatt-hour. Ambrosia's pilot plant can generate 200 kilowatts continuously, and sections have operated for more than 100 days, Longmier said. Longmier and co-founder Sara Spangelo previously founded Swarm, a satellite company later sold to SpaceX. Simon Yoon. Simon Yoon reports on blockchain technology for TokenPost. Send corrections or tips to [email protected].

Ambrosia Energy has begun work on a 10 gigawatt-hour battery factory near Austin, Texas, co-founder and chief executive officer Ben Longmier said at TechCrunch Disrupt in San Francisco on Tuesday. The 150,000-square-foot plant should reach full production in two to three years. The startup builds off-grid solar-plus-battery power plants for data centers at a cost of $100 per megawatt-hour. Longmier said the factory will allow it to build about 300 megawatts of capacity a year. Ambrosia will also start work on its first commercial plant in West Texas later this year. It will pair 300 megawatts of solar panels with 660 megawatt-hours of batteries to deliver 30 megawatts of continuous power, aiming for 99.3% uptime. Longmier said a pilot plant has run continuously for more than 100 days. Ambrosia buys cells and makes its own packs, which it says cuts costs to about 1.3x the bare cell price.