Google paid startup Form Energy $1B for its massive 100-hour battery

Google has invested approximately $1 billion in Form Energy, a startup developing a groundbreaking iron-air battery capable of delivering 300 megawatts of continuous power for 100 hours. This battery technology operates by rusting iron through oxygen intake, releasing electrons to provide long-duration energy storage. The system is designed to complement renewable energy sources, smoothing the output from 1.4 gigawatts of wind power and 200 megawatts of solar power. Form Energy has been developing this technology for several years and recently established a production facility in West Virginia. The deal with Google marks the startup’s first major customer commitment, which has catalyzed further fundraising efforts, including a $500 million round currently underway. To date, Form Energy has raised $1.4 billion and plans to go public next year, positioning itself as a key player in large-scale, long-duration energy storage solutions.