The Grid's Missing Piece Has Been Sitting in Your Toolshed the Whole Time
Iron-air batteries store energy through controlled reversible rusting, can discharge for 100 hours, and target a cost below $20 per kWh. Form Energy is shipping commercial units and just announced the largest battery deal in history with Xcel Energy and Google. The renewable grid's intermittency problem may have found its answer in the most abundant metal on Earth.
By Dr. Nadia Osei · 4 min read