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Sir I am broke
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this post was submitted on 15 Aug 2023
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The technology is extremely underdeveloped. That's why it's so expensive and impractical right now. Batteries aren't ecological saints either.
Hydrogen is a pain to store and work with. Even on rocket engine that is worth millions it's almost impossible to avoid leaks.
On the other hand gas can be carried in a plastic bottle and electricity is already available everywhere.
I don't see any future where hydrogen car become mainstream.
Hydrogen is such a pain to deal with, the filling stations cost something like a million dollars each.
You can't just use normal materials to contain high pressure hydrogen - the molecules are so small that it seeps through steel and turns it brittle.