Deep Abandoned Mine In Finland To Be Turned Into a Giant Gravity Battery
James Felton reports via IFL Science: One of the deepest metal mines in Europe โ€“ the Pyhasalmi Mine in central Finland โ€“ is to be turned into an enormous gravity battery capable of storing 2 megawatts of energy. [โ€ฆ] Despite the cool name, the idea behind gravity batteries is really simple. During times when energy sources a โ€ฆ โŒ˜ Read more

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