Side-by-side comparison of AI visibility scores, market position, and capabilities
NASA-derived nickel-hydrogen battery company raised $300M Series B extension in Mar 2026 bringing total to $445M; lithium-free batteries rated for 30,000 cycles (10x lithium-ion lifespan) designed for grid-scale and AI data center applications.
EnerVenue is an energy storage company commercializing nickel-hydrogen battery technology originally developed by NASA for satellite power systems. The company raised a $300 million Series B extension in March 2026 led by Full Vision Capital, bringing total funding to $445 million. EnerVenue's batteries are lithium-free and rated for 30,000 charge cycles — roughly 10x the lifespan of standard lithium-ion systems — making them purpose-built for demanding grid-scale and data center applications.
$272M total raised. Commercial-scale thermal battery deployments launching in 2026. DOE-backed cement consortium (1.1M tonne CO2/yr reduction). Heat-as-a-service model.
Antora Energy builds carbon-block thermal batteries that store cheap renewable electricity as ultra-high-temperature heat (up to 1,500°C), then deliver industrial process heat on demand — displacing natural gas in hard-to-abate sectors like cement, steel, and chemicals. The company has raised $272 million in total funding and is launching its first commercial-scale deployments in 2026, integrated into a DOE-backed cement industry consortium targeting 1.1 million tonnes of CO2 reduction per year.
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