Alan Ambrose Posted February 8 Share Posted February 8 https://www.iflscience.com/deep-abandoned-mine-in-finland-to-be-turned-into-a-giant-gravity-battery-72835 ...It should be capable of storing 2 megawatts of energy. 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted February 8 Share Posted February 8 2 minutes ago, Alan Ambrose said: megawatts of energy. Mega watt hour. They claim that they don't need any rare earth metals. Indium is a by product of copper mining, so maybe they can use some of the excess energy to process the spoil. Rare earth metals are not scarce, they just tend to be in places then Western world wish they were not. Link to comment Share on other sites More sharing options...
Alan Ambrose Posted February 8 Author Share Posted February 8 >>> Mega watt hour. Good point Link to comment Share on other sites More sharing options...
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