Form Energy Raises $750M for Long-Duration Battery Production

Form Energy has successfully closed a substantial $750 million Series G funding round, signaling a significant boost for its ambitious plans to scale up the manufacturing of its innovative iron-air battery technology. This capital infusion, spearheaded by prominent investment firm T. Rowe Price, saw robust participation from a consortium of leading financial institutions including Sequoia Capital, Janus Henderson, Franklin Templeton, and PEAK6 Investments. The funds are earmarked for expanding the company's production capabilities in West Virginia, a critical step towards meeting the growing demand for grid-scale energy storage.

The company's proprietary iron-air battery system offers a unique value proposition: it can discharge power for up to 100 hours, a duration far exceeding that of many conventional storage solutions. This technology functions by converting iron into rust during discharge and reversing the process during charging, utilizing readily available materials. A key strategic advantage for Form Energy is its commitment to domestic sourcing, with approximately 80% of its materials originating within the U.S., supplemented by supplies from Europe and Asia. This focus on localized supply chains enhances resilience and potentially reduces logistical costs.

The market traction for Form Energy's technology is evident in its growing customer base and project pipeline. Major technology firms like Google are integrating Form Energy's batteries into their infrastructure, with a notable 30-gigawatt-hour deployment planned for a data center in Minnesota. Similarly, Crusoe has committed to acquiring 12 gigawatt-hours of battery capacity. Other significant commitments include those from Xcel Energy and FuturEnergy Ireland. Collectively, these commitments have propelled Form Energy's commercial project backlog to approximately 80 gigawatt-hours, representing a fourfold increase in recent months.

This expansion comes at a pivotal moment for the energy storage sector. U.S. energy storage installations surged to 9.7 gigawatt-hours in the first quarter of 2026, marking a robust 32% year-over-year growth. The increasing electrification of the economy, coupled with the exponential rise in data center energy consumption—projected to quadruple by 2035 and account for roughly 20% of all U.S. electricity—underscores the urgent need for reliable, long-duration energy storage solutions. Form Energy's technology directly addresses this burgeoning demand.

The newly secured capital will facilitate the expansion of Form Energy's West Virginia manufacturing facility, with a target capacity of at least 500 megawatts by 2028. This expansion is crucial for producing the company's large-scale, 100-hour battery systems essential for stabilizing the electrical grid and supporting the integration of intermittent renewable energy sources. The company's ability to secure such significant funding from a diverse group of sophisticated investors highlights the confidence in its technology and its potential to reshape the energy storage market.

The implications of this funding extend beyond Form Energy itself. It validates the market's growing appetite for long-duration energy storage technologies that can provide grid stability and support the transition to a cleaner energy future. As the energy sector navigates the complexities of decarbonization and increasing electricity demand, companies like Form Energy, backed by substantial investment, are positioned to play a critical role in enabling a more resilient and sustainable power infrastructure.