What if we could store renewable energy using a process as simple as rust? π
While standard lithium-ion batteries can only store energy for 2 to 4 hours, power grids need ways to keep clean electricity flowing through multi-day storms or calm, cloudy winter weeks.
That is where Form Energy comes in. They have commercialized an innovative iron-air battery that operates on "reversible rusting." When discharging, the battery absorbs oxygen to turn iron into rust and release electricity. When charging, electricity turns the rust back into iron, releasing oxygen.
By using simple, abundant materials, iron, water, and air, these systems can discharge continuously for 100 hours at a fraction of the cost.
And I love to say this isn't just a prototype anymore. Massive multi-gigawatt deals are already underway with Google, Xcel Energy, and Crusoe to power giant AI data centers cleanly and keep power grids reliable for days