Batteries That Store Energy Using Rusting Iron Could Help Decarbonize the Grid

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  • Form Energy is building batteries using a common element – iron.
  • These batteries can store a lot of energy, so you can keep pulling power out of them for hundreds of hours.
  • The company is building a battery that will cover multi-day intermittencies, including a 100-hour rated duration battery which will last a minimum of four days.

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