• 18107@aussie.zone
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    2 days ago

    I disagree with the picture of hydrogen cars.
    There is no way you could build enough infrastructure to drive that many cars. Hydrogen is so much less energy dense that you would need 20 hydrogen tankers to match 1 gasoline tanker.

    Actually… If we all shift to hydrogen cars, then everyone will drive less because they’ll all be waiting for fuel. I see this as a complete win!

    • Blemgo@lemmy.world
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      2 days ago

      Also, IIRC, having Hydrogen as a main fuel source would be pretty expensive in most places, as it would need to be produced in factory with high safety standards, and there is little demand for hydrogen, so these factories would live and duebwith the hydrogen car’s useage. There are a few places where it’s actually feasible because there are some factories that produce it, as a byproduct with otherwise little demand, so it’s effectively treated as waste.

    • zaphod@sopuli.xyz
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      1 day ago

      Hydrogen is a gas, you can use pipes to transport it. My city is currently building out hydrogen pipes for industrial users. It’s a little annoying because they put the pipes under the bike lanes and the bike lanes aren’t useable during construction.

      • SkunkWorkz@lemmy.world
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        1 day ago

        But energy density is still an issue for cars. The hydrogen needs to be compressed down to a liquid for a car to have a decent range. But compressing hydrogen costs energy. Plus the fact that making hydrogen costs more energy than the produced hydrogen can give back. You might as well use that energy to charge a battery EV instead and waste less energy.

        Hydrogen for industrial use makes sense for personal vehicles not so much.

        • zaphod@sopuli.xyz
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          1 day ago

          Yeah, but hydrogen cars exist, I’m not defending them, just saying that you don’t need trucks hauling the hydrogen around.