this post was submitted on 17 Jan 2025
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You're hard pushing hydrogen / oxygen pretty blindly. Do you happen to know what the best efficiency of it is? It's not great. And it gets worse when you have to harvest it (typically electrolysis which is brutally energy intensive.) Worse still when you need to compress it - and don't even start me on energy density. Oh and that compressed gas needs to be kept cold. More energy.
Hydrogen cells have been around for ages and are still functionally worthless until the storage and generation problems are solved.
As I've already explained, we need hydrogen. We need it not for energy storage, but as a useful, important product. Electrolysis of water is pretty much the only way to get it without emitting greenhouse gases. Therefore, the efficiency of it doesn't really matter, especially if the energy to do it would otherwise go to some dangerous, battery based buy low/sell high scheme.