PV Magazine: Google to deploy world’s largest iron-air battery for Minnesota data center

A massive 300 MW / 30 GWh iron-air battery system in Minnesota, utilizing technology from Form Energy, is set to become the largest battery system by energy capacity announced globally, providing a blueprint for how Big Tech intends to firm up intermittent renewables to meet the relentless power demands of the AI era....The framework is designed to ensure the 100-hour long-duration energy storage (LDES) system, paired with 1,400 MW of wind and 200 MW of solar, does not impact the rates of its residential customers. Form Energy said its iron-air batteries can store renewables-sourced electricity for 100 hours at system costs competitive with conventional power plants. More DETAILS.