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Entropy? Never heard of it.
(lemmy.dbzer0.com)
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this post was submitted on 16 Feb 2025
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Just checked the numbers, for those interested.
A gas power plant produces around. 200-300kWh per tonne of CO2.
Capture costs 300-900kWh per tonne captured.
So this is basically non viable using fossil fuel as the power. If you aren't, then storage of that power is likely a lot better.
It's also worth noting that it is still CO2 gas. Long term containment of a gas is far harder than a liquid or solid.
Co2 is liquified before storage.
And how do you plan to keep it liquefied, on a large scale, for 100s of years? It's currently done using pressure vessels amd chillers, that require maintenance etc.