Form Energy Secures $750M Series G Led by T. Rowe Price for Iron-Air Battery Scale-Up - News and Statistics

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  "detected_at": "2026-08-18T12:04:00+00:00",
  "company": {
    "name": "Form Energy",
    "domain": "formenergy.com"
  },
  "data": {
    "url": "https://www.indexbox.io/blog/form-energy-raises-750m-in-series-g-to-scale-iron-air-battery-production/",
    "title": "Form Energy Secures $750M Series G Led by T. Rowe Price for Iron-Air Battery Scale-Up - News and Statistics - IndexBox",
    "excerpt": "US startup Form Energy has raised US$750 million in a Series G financing round, led by global investment management firm T. Rowe Price. The announcement was made on 12 August, with the company stating that the funds will be used to accelerate manufacturing scale-up at its first factory, Form 1, in Weirton, West Virginia, and to advance commercial deployments of its iron-air multi-day battery energy storage systems. According to the source, T. Rowe Price also led Form Energy's previous Series F round. The Series G brings the company's total equity raised to over US$2 billion. New investors in this round include Sequoia Capital , Janus Henderson, Franklin Templeton, and PEAK6 Investments. Existing investors such as 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 also continued their support. Form Energy was initially considered a unique player in the iron-air long-duration energy storage sector, holding extensive patents and IP. However, other iron-air battery startups have emerged. India-based Meine Electric claims to be the first iron-air LDES innovator in the Asia-Pacific region and recently announced a pilot project at the Simhadri Thermal Power Station, owned...",
    "summary": "Form Energy's Series G funding round was completed at a pre-money valuation of US$1.75 billion.",
    "planning": false,
    "image_url": "https://www.indexbox.io/landing/img/blog/telegram-fallback/ec5fe45955a5cee2d13b035d37e3c92f.webp?v=1787054671",
    "confidence": 0.9,
    "published_at": "2026-08-18T12:04:00Z",
    "article_sentence": "Axios reported that the Series G round was completed at a pre-money valuation of US$1.75 billion, down from approximately US$3 billion in the previous fundraising cycle in October 2024, indicating a down round despite strong commercial momentum.",
    "amount_normalized": 1750000000
  }
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