Antora Energy Closes US$550 Million Series C to Scale US Thermal Battery Deployment
The Series C will fund a second factory and new projects as data centers and heavy industry seek cheaper long-duration storage.
- On Thursday, July 30, 2026, San Jose-based Antora Energy closed a $550 million Series C funding round co-led by G2 Venture Partners and Eclipse, bringing total corporate and project financing to around $1 billion.
- Antora will use the new capital to build a second U.S. manufacturing hub and fulfill its "growing pipeline of signed agreements" with major data center operators and industrial companies.
- At a Poet biofuels plant in Big Stone City, South Dakota, the company recently commissioned a 5-gigawatt-hour thermal battery system that converts wind energy into steam for industrial processes.
- CEO Andrew Ponec said "energy is the bottleneck to industrial growth," emphasizing that Antora's modular technology enables facilities to access power faster than traditional natural gas alternatives.
- Demand for grid-scale energy storage has surged as renewable adoption increases, positioning Antora's thermal batteries as a competitive, lower-cost alternative to lithium-ion systems for long-duration applications.
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13 Articles
Antora Energy closes US$550 million Series C to scale US thermal battery deployment
Thermal energy storage (TES) technology provider Antora Energy has closed a US$550 million Series C funding round to accelerate deployment of its thermal battery storage systems for industrial facilities and data centres in the US.
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The US energy storage startup Antora Energy is scaling up with a $550 million assist from leading investors. The post “Hot Blocks” Thermal Energy Storage Startup Nails Down $550 Million More To Chase Fossil Fuels Away appeared first on CleanTechnica.
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