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[–] 26 points 2 years ago (2 children)

A cubic meter of water above your roof has the storing capacity of a AAA cell. That's why you need huge, massive damms to store any significant amount of power. But unfortunately it's not flexible enough (you need mountains nearby) or dense enough.

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  • [–] 3 points 2 years ago (4 children)

    What about storing energy as potential energy using some high density objects. This may work.. Right?? gravitricity Check out their work.

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  • [–] 3 points 2 years ago

    It's slithly better the more dense the material, but that's basically the same thing. You could say that depending on the location, using water is much more practical.

    A much more interesting one I saw was the molten salt ones, where basically you store the energy as heat in a sealed place, and then when you need it, you use that heat to run turbines.

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