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A comment on Venetians are pondering raising their entire city. Parent comment

Re:Venetians are pondering raising their entire city by FriedPickles on Sunday May 28, 2023 @11:13AM (#36104714)
Perhaps they could lower the total cost if they recaptured compressed air as seawater reenters the gates during the sinking process.

There are unavoidable losses to heat, but if they did this it wouldn't be too different from "deep sea pumped storage" concepts.

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Re:Venetians are pondering raising their entire city by jaclaz on Monday May 29, 2023 @04:17AM (#36111861)
There would be the need of huge (leakproof) containers for the compressed air recovered, from a back of the envelope calculation, we are talking of 100,000-150,000 cubic meters of compressed air.
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