Form Energy has secured a new $750 million round of funding in its mission to develop iron-air batteries capable of continuous operation for up to 100 hours. This investment brings the company's total funding beyond $2 billion, supporting expanded manufacturing at its Weirton, W. Va. facility and early commercial deployments, including a project with Xcel Energy partnered with Alphabet's Google.

The rise in demand for these long-duration storage solutions stems from surging electricity needs driven by artificial intelligence infrastructure, where conventional lithium-ion batteries fall short due to their limited runtime. Form Energy's technology offers significant advantages over traditional options, providing sustained power for days rather than hours—ideal for utility-scale grid stability during events like winter storms.