this post was submitted on 11 Jun 2024
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Is it really that good of a storage method, though? The round-trip efficiency is quite bad when compared to other methods of storage.
We'll need it anyway to produce existing chemical materials sustainably. It may not be the best energy carrier nor most efficient, but it shines in specific applications. Vehicles are a promising example.
Acording to this paper/article, its better than technologies such as batteries, but the study isn't the most comprehensive and doesn't consider things like pump hydro.
"That good of a storage method" in terms of what, arbitrage? We should be producing hydrogen for the practical and environmental benefits of having emissions-free vehicle fuel (that avoids the problems of battery production and disposal), steel, and fertilizer.
I don't see any good reason why the merits of hydrogen for vehicle fuel would be any better than production and disposal of batteries. The other cases I agree that hydrogen will have a useful niche.