Antora raises $550 million to scale US thermal battery deployment

The financing was co-led by G2 Venture Partners and Eclipse, with participation from Ribbit Capital, Salesforce Ventures, Activate Capital, John Doerr, the Westly Group, StepStone Group and Liberty Mutual Strategic Ventures. Antora’s systems store heat in solid carbon blocks at up to 2,400 C and can also use thermophotovoltaic technology to convert stored heat back into electricity. The round follows the company’s 5 GWh Big Stone deployment in South Dakota and reflects rising demand for fast, reliable clean power from industrial loads and data centers.