Comment on New fuel cell could enable electric aviation

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Allero@lemmy.today ⁨2⁩ ⁨days⁩ ago

It takes energy to produce fuel. So what?

The point is, the efficiency of the entire process is much smaller compared to battery. Some estimates say that between electrolysis, transportation and fuel cell conversion it’s almost twice as bad in terms of energy efficiency, so you ultimately need double the energy for the same thing.

Sure, the math on planes is somewhat different as you need to account for battery weight. But really, it might still be more efficient to cram those batteries in. And as we know, it is still too bad to be usable.

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