Latest Antora Energy news, funding rounds and robotics & AI coverage. $550M raised. 1 article tracked by The Robotics Media.
Antora Energy manufactures modular thermal batteries that store low-cost renewable electricity as heat in insulated blocks of solid carbon and dispatch it around the clock as heat or power. The San Jose, California-based company operates one of the largest battery gigafactories in the United States and is scaling a three-building manufacturing campus alongside a second US hub in the wake of surging data center power demand.
In May 2026 Antora and POET commissioned Project Big Stone in South Dakota, a 5 GWh thermal storage system that ranks among the largest battery projects in the world. On July 30, 2026 the company closed a $550 million Series C at a $2.47 billion valuation co-led by G2 Venture Partners and Eclipse, joined by Ribbit Capital, Salesforce Ventures, Activate Capital, John Doerr, Westly Group, StepStone Group and Liberty Mutual Strategic Ventures.