• CalypsoGirl@lemmy.today
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    2 days ago

    Can you please name a make & model? Otherwise afaik Big Oil works really hard to make sure hydrogen powered vehicles never get into the hands of common folk.

    • Cocodapuf@lemmy.world
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      1 day ago

      Hyundai Nexo

      Honda CR-V fuel cell

      Toyota Mirai

      They’re mostly only sold in Japan and California, as that’s where there’s actually hydrogen fueling infrastructure.

      There are other models, they exist, these cars are real.

    • Hapankaali@lemmy.world
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      1 day ago

      The conversion of water to hydrogen using electricity has about 20% efficiency. There is no advantage over electric vehicles ever since batteries have become compact enough to make battery-powered electric vehicles feasible.

      • Nibodhika@lemmy.world
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        21 hours ago

        There are some advantages, batteries require more pollution to be created and have a larger environmental impact if not dealt with properly. A hydrogen car has the potential to be 100% clean. That being said I don’t think it’s that big of an advantage considering some of the difficulties involved in it.

      • CalypsoGirl@lemmy.today
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        1 day ago

        There is no advantage over electric vehicles

        What about batteries’ explosive potential & a lifespan shorter than the metal cage it propels?

        Hydrogen vehicles would be superior to that.

        • Bytemeister@lemmy.world
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          11 hours ago

          Batteries don’t really explode, they combust. The metal cage usually outlives its ICE engine as well.

          Hydrogen fuel cell vehicles either need extreme insulation to keep the fuel cool, otherwise it has to vent some fuel or risk exloding, or extremely strong pressure vessels in the car to maintain the hydrogen in a liquid form. A metal cylinder constantly expanding and contracting while simutaneously seeing extreme temperature changes is going to wear out much faster than the frame of the vehicle.

        • SaveTheTuaHawk@lemmy.ca
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          22 hours ago

          What about batteries’ explosive potential

          The Hindenburg was battery powered, oh, the humanity.

          Guess what element on the periodic table causes batteries to explode? hint: not mentadent.

        • speculate7383@lemmy.today
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          1 day ago

          What about batteries’ explosive potential

          Compared to a literal TANK OF HYDROGEN. Hmmmm…

          a lifespan shorter than the metal cage it propels?

          Yeah, there aren’t any cars in the junkyard that were scrapped because they threw threw a rod or chewed up their transmission…

          Wow. Just, wow.

    • MaggiWuerze@feddit.org
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      1 day 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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        11 hours 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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          21 hours 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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        1 day 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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          1 day 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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            22 hours 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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            1 day 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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              1 day 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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          1 day 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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            20 hours 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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              22 hours 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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              1 day 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

    • safesyrup@feddit.org
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      1 day ago

      It’s quite the contrary, big oil loves hydrogen because it can be produced by oil/methane and currently is the main way we produce hydrogen (though i think most of it is used in industrial processes and not for propelling vehicles).

      This wikipedia article has nice information on current and possible future hydrogen production : https://en.wikipedia.org/wiki/Hydrogen_production