Formerly u/CanadaPlus101 on Reddit.

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Cake day: June 12th, 2023

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  • I mean, to make e-fuel you still need the e (which stands for electricity). It’s ~guaranteed to have lower round-trip efficiency and higher cost in a car than just a battery. Ditto for green hydrogen. Theoretically blue hydrogen or white hydrogen could be used instead, but it’s not certain how much white hydrogen there is, and blue hydrogen needs carbon capture and storage which will add a lot to the cost.

    Gas generators are pretty much the same as ever, while renewables have gotten much cheaper than them. If your power bill went up, it’s some local issue doing it.

    (Air-breathing aviation is the other application I didn’t mention. Battery planes work but not well, so it’s closer to rockets. I don’t know if anyone has tried hydrogen, but that’s where e-fuel comes up a lot)