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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@slrpnk.net to c/energy@slrpnk.net

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[–] mindbleach@sh.itjust.works 0 points 3 months ago (1 children)

... what, just anywhere flat? Pumped hydro should be feasible wherever there's a hill.

If we're building big weird structures, even that is optional. You can put one pool above-ground and another in-ground. Deep and tall presumably beat wide.

[–] silence7@slrpnk.net 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@slrpnk.net 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@slrpnk.net 4 points 3 months ago

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