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Viper_63 t1_j6m4ju3 wrote

The benefits from this are neglegible small. The problem is not purefication of seawater, the problem is the staggering amount of energy needed for electrolysis. Seawater reverse osmosis (SWRO) takes basically no energy compared to splitting water into hydrogen and oxygen.

>As commercial water electrolysis requires a significant amount of energy compared to SWRO, the capital and operating costs of SWRO are found to be negligible. This leads to an insignificant increase in levelized cost of H2 (<0.1 $ per kg H2) and CO2 emissions (<0.1%) from a SWRO-PEM coupled process.

https://pubs.rsc.org/en/content/articlelanding/2021/ee/d1ee00870f

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We_Are_Victorius t1_j6olmbu wrote

It's more efficient to just us the energy in electric vehicles. You also have to re-engineer our infrastructure for Hydrogen. It's not a liquid like gasoline, it's a gas like propane. We are right on the cusp of some major battery changes that will make the electric car an even better option.

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