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Form Energy's iron-air battery is the only credibly scaling multi-day storage technology — the gap that has stalled renewables for a decade — and Jaramillo has it in the ground via utility contracts and a West Virginia factory.
Mateo Jaramillo co-founded Form Energy in 2017 after leading Tesla's stationary battery business, building a 100-hour iron-air battery that fills the multi-day-storage gap renewables can't otherwise solve.
Form opened a West Virginia factory in 2024 and signed multi-state utility contracts that, if delivered, make multi-day batteries a real grid resource.
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