• MaggiWuerze@feddit.org
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    3 days ago

    Big Oil doesn’t need to. Hydrogen cars are almost as inefficient as ice cars. They make no sense.

    Maybe for trucks or trains, but even there electric is better

    • Bytemeister@lemmy.world
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      2 days ago

      Efficiency wasn’t was the hydrogen car was trying to solve.

      The main goal was to have a carbon-neutral fueled vehicle.

      I remember reading about hydrogen fuel cell cars back in 2000, maybe earlier than that. Battery electric vehicles really weren’t on the public radar at the time. Essentially the fuel cell would take the place of the battery, storing energy to run an electric motor. We can then use just about any electrical source to separate water into hydrogen and oxygen. Even if the efficiency sucked, flexibilty in sourcing fuel made up for it.

      • Nibodhika@lemmy.world
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        3 days ago

        Most hydrogen is made from oil.

        In your country. Countries with green energy use renewable sources, so they use water to split water into hydrogen and oxygen and then they can combine hydrogen with oxygen to generate energy and move cars around, all without generating almost no pollution at all.

    • CalypsoGirl@lemmy.today
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      3 days ago

      I guess you must be right, since they don’t seem to be as popular as the other options. But Wikipedia says they have a 300+ mile range per full tank, so I’m not sure how that could be less efficient than my diesel truck with the same range.

      • PonyOfWar@pawb.social
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        3 days ago

        You need to use a ton of energy to produce the hydrogen fuel, so just using an EV is much more efficient.

        • SaveTheTuaHawk@lemmy.ca
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          3 days ago

          You need to use a ton of energy to produce the hydrogen fuel

          another ton to store it, and another ton to drive it around.

        • MaggiWuerze@feddit.org
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          3 days ago

          Not to forget, that converting it back into water also doesn’t produce that much usable power. You end up with an efficiency of maybe 30-40% compared to an EVs 80-90%

          • Junkers_Klunker@feddit.dk
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            3 days ago

            That too yea. The only thing better than an ev is the fast refueling, but imo that doesn’t matter as you really should take a longish break after 2-300 miles and at that point, just charge your ev while you take a piss or do some stretching.

      • MaggiWuerze@feddit.org
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        3 days ago

        Their main issue with popularity might be options to actually get the fuel. It like in the very beginning of EV cars, only that you can’t even fill it up at home. And h2 cars don’t have the same momentum as EV cars so the chance of that network growing is very slim

        • Nollij@sopuli.xyz
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          3 days ago

          I mean, you could create your own hydrogen at home. Hydrolysis machines exist, and are sometimes sold as medical devices to create pure oxygen from water. The other half of the output is hydrogen, which would need to be captured in a way that you can put it into your car.

          It’s an extremely inefficient way to power a car, though. Converting electricity to hydrogen and back to electricity (as most hydrogen fuel cell cars do) is a ton of loss. It’s also a bunch of complexity, both mechanical and on the operator.

          ETA: fixed typo

          • SaveTheTuaHawk@lemmy.ca
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            3 days ago

            I mean, you could create your own hydrogen at home.

            using electricity. or, just use electricity to power your car.

          • MaggiWuerze@feddit.org
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            3 days ago

            I mean, technically nothing is stopping you from making your own gasoline either :D But yeah you’d be better advised to just put the power in a battery