Thermal Battery Storage Funding
Antora Energy Has Raised $550 Million to Scale Its Manufacturing
Adam Harrie — August 1, 2026
Antora Energy closed $550 million in Series C funding, co-led by G2 Venture Partners and Eclipse, with participation from Salesforce Ventures, John Doerr and Breakthrough Energy Ventures. The capital will accelerate deployment of the company's thermal batteries and support the establishment of a second U.S. manufacturing hub. The round follows Antora's commissioning of a 5 GWh thermal battery project in South Dakota, which moved from construction to energy delivery in under 12 months.
Antora's factory-built modules store low-cost electricity as heat in insulated blocks of solid carbon, delivering it around the clock as heat or power without relying on supply-constrained critical minerals. The technology can serve chemical plants, food producers, steelmakers, data centers and the grid directly, charging when electricity is abundant and discharging when demand rises.
Antora Energy shows how thermal storage technology could provide a faster, mineral-light pathway to affordable, round-the-clock clean energy at industrial scale.
