this post was submitted on 23 Sep 2023
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I don't understand how hydrogen didn't win the race. Transports and explodes just like gasoline. Make car go fast. Doesn't degrade like lithium. Can be "mined" by throwing electricity at water during times of excess generation by renewables. When you burn it, it turns into water. Has none of the national security concerns of distribution of lithium mining and production in other countries.
Hydrogen for cars is a nonsense. It is so inefficient. Unless you are making it from oil, which why the oil companies are pushing it, you lose loads of energy making it. Then it has to storages and transported, which is hard. Then the car use of it is inefficient too.
So ignoring the oil industries' "blue hydrogen", and looking only at "green hydrogen", you are looking at about 22% of the energy generated ending up pushing the car forward! With an EV it is about 73%. So hydrogen car are over 3 times more expensive to run.
Plus you can just plug in an EV anywhere. With an EV, if need be, you can charge, slowly, off a normal home socket. Of course, normally, you fit faster charging at home.
Hydrogen cars is lie pushed by big oil.
What about hydrogen fuel cells? They got 79% efficiency and can replace batteries of EVs right?
Yes, but turning electricity into hydrogen doesn't have 100% efficiency, during transport, storage and filling the car with hydrogen you lose some of it and only then you get to the fuel cell, which isn't very efficient in itself. And then you lose a bit more (although very little) in the electric motor. All this amounts to the 22% of the guy above (didn't check the number btw, but it sounds plausible)