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by Someone 183 days ago
EV trucks got a head start because we already have extensive electricity networks, though. That makes rolling out charging stations a lot easier than rolling out a hydrogen distribution network (the existing network to distribute gasoline will not work because it’s made for fluids, that of natural gas won’t work either because hydrogen molecules are so small, and the natural gas distribution network often doesn’t have the necessary density)

Because of that, EV trucks might be a local optimum.

Having said that, hydrogen is difficult to handle. To get reasonable power density, you have make it liquid, compress it, or do both. Purely liquid is impractical, given that it happens at 33K at normal room temperature, so you need pressure, lots of it.

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Yes, and the energy required to compressed it to liquid form is immense, leading to high costs.

And until it’s made from something other than methane it won’t be a climate solution. In fact hydrogen production is a major climate problem that should be solved first before we consider wasting any green hydrogen on something that can be done cheaper with electricity.