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by baybal2 1991 days ago
Just build water towers. 100m water tower is nowhere near as an extreme engineering as this.
1 comments

a 100m water tower doesn't hold as much energy either does it? It's pretty light compared to concrete, I think.
Less by 2.5 times, but it being 2.5 times more wouldn't make much difference. Power, and energy density would still be very, very bad.