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It's a matter of energy density. Compared to lithium-ion batteries, compressed hydrogen gas stores about 150 times as much energy per kilogram, or twice as much energy per liter. If you're using the energy immediately after generating it, then yes, direct power makes sense. But if you're storing it for later, or need to use it to power something that can't ...


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Try to use electricity and nitrogen to create ammonia for fertilizer production. I'm sure you see the difficulties in that, as electricity is not an element and thus the only element you have is nitrogen. The element hydrogen is missing. Ammonia requires hydrogen and nitrogen. Then, try to use electricity to create hydrogen from water (electrolysis) and use ...


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