this post was submitted on 09 Apr 2024
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[–] jol@discuss.tchncs.de 3 points 7 months 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.