3 ms·
Flywheels and molten salt both have pretty gnarly failure modes too. Not Chernobyl bad, but still no fun.
by User23 4y ago
Flywheels and molten salt both have pretty gnarly failure modes too. Not Chernobyl bad, but still no fun.
- ncmncm 4y agoUnderground flywheels are perfectly safe, and more easily kept evacuated. But they won't be used much at utility scale, because they are expensive per Wh stored. Maximum storage is dictated by tensile strength of the wheel material, and each wheel needs its own motor / generator.