A Battery That Rusts to Store 100 Hours of Power: Form Energy Raises $750M

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    "domain": "formenergy.com"
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  "data": {
    "url": "https://en.wowtale.net/2026/08/14/234713/",
    "title": "A Battery That Rusts to Store 100 Hours of Power: Form Energy Raises $750M - Wowtale",
    "excerpt": "Solar and wind have one crippling weakness: the stretch of days when the wind dies and the sun doesn’t show. Lithium-ion batteries, typically sized for four hours, can’t cover that gap. The answer from Form Energy , based in Weirton, West Virginia, is an iron-air battery that delivers power for more than 100 hours . The mechanism is rust. Iron oxidizes into rust as the battery discharges, and that rust turns back into iron when it charges. No expensive minerals like lithium or cobalt are needed, and there is no risk of thermal runaway. The company says 80% of its battery materials are sourced in the U.S., with the rest coming from Europe and Asia - China is absent from the supply chain. Form Energy announced a $750 million Series G led by T. Rowe Price , which also led its $405 million Series F . Total equity raised now exceeds $2 billion. New investors include Sequoia Capital , Janus Henderson , Franklin Templeton , and PEAK6 Investments. Existing backers returned as well: Prelude Ventures, Engine Ventures, TPG Rise Climate , Capricorn’s Technology Impact Funds, Breakthrough Energy Ventures , Dustin Moskovitz and Cari Tuna, Gigascale Capital, Coatue, Energy Impact Partners, NGP, GE Vernova , Blindspot Ventures, and M&G Catalyst Fund. Morgan Stanley served as sole placement agent. The capital followed the orders. Form Energy’s backlog of iron-air battery projects grew from...",
    "product": "iron-air battery",
    "summary": "Google ordered a 30 GWh iron-air battery installation from Form Energy for a Minnesota data center, a deal estimated at around $1 billion.",
    "location": "Minnesota, USA",
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        "state": "Minnesota",
        "region": "Northern America",
        "country": "United States",
        "continent": "Americas",
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curl -X POST https://signals.autobound.ai/v1/companies/enrich \
  -H "X-API-KEY: $AUTOBOUND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"domain":"formenergy.com","limit":20}'