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Originally Posted by Fuzz
A hydrogen tank for a semi is going to weigh a lot less than the batteries for one, though.
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Yep.
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Hydrogen filling stations at truck stops are an easier problem to solve than ones at every corner gas station. You also solve the issue of having tens or hundreds of trucks at a truck stop trying to charge, and the nuclear reactors you would need to power it!
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The energy has to come from somewhere to make the hydrogen, which is a way less efficient method of using electricity to power a motor.
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I think rooftop solar should basically be a requirement for warehouses over a certain size. I'm far from convinced the costs for individual houses makes much sense.
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It's not a great value proposition currently, in 5 years extrapolated it will. In 10 years solar and batteries will likely be 2x cheaper than we have now. At that point every other form of electricity generation will make no financial sense.