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First of its kind 'energy dome' storage project takes another step forward in Wisconsin (www.wpr.org)

submitted 3 months ago by silence7 to c/energy

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[–] silence7 5 points 3 months ago (2 children)

To actually do the volumes that make pumped hydro practical you need not just a hill but a space which can hold a truly huge volume of water.

[–] JacobCoffinWrites 4 points 3 months ago

Yeah pumped hydro needs lakes, not pools, as far as I know. They flood entire mountain valleys, using the surrounding mountains themselves as the storage structure, because they need so much space.

[–] mindbleach@sh.itjust.works 1 points 3 months ago (1 children)

But a warehouse-sized balloon works?

[–] silence7 4 points 3 months ago

Yes, because phase transitions involve absolutely huge amounts of energy.