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Feb 8, 2024, 5:00 am151 pts
Slashdot
James Felton reports via IFL Science: One of the deepest metal mines in Europe -- the Pyhasalmi Mine in central Finland -- is to be turned into an enormous gravity battery capable of storing 2 megawatts of energy. [...] Despite the cool name, the idea behind gravity batteries is really simple. During times when…
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