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Toyota trials hydrogen-powered vehicle on public roads in Australia (japantoday.com)
submitted 2 years ago by to c/technology@lemmy.world
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[–] 10 points 2 years ago* (2 children)

https://insideevs.com/news/332584/efficiency-compared-battery-electric-73-hydrogen-22-ice-13/

according to this website, hydrogen ICEs are very inefficient. same with fuel cell vehicles. the main losses come from converting the hydrogen into and out of electricity. but if said electicity is generated in abundance with renewable energy at a cheap price, this could really be something.

edit: you can't really burn electricity, so as a car enthusiast i really hope hydrogen ICEs become a thing.

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  • [–] 5 points 2 years ago (1 child)

    BEVs are a lot of fun to drive. Car people are nostalgic for burning fuels and roaring engines, but future generations will be far less so. We just need far lighter batteries.

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  • [–] 1 point 2 years ago (1 child)

    Lighter batteries, lower costs, quicker charging and way longer range under load. Hydrogen is the way forward. I don't understand why there is so much push back from the EV crowd. EVs are great for city driving, but are terrible for long range and heavy load equipment.

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  • [–] 0 points 2 years ago

    I was specifically talking about cars that are fun to drive. The one thing I dislike about my BEV is that it's so heavy.

    Personally I don't think hydrogen is the way for most personal vehicle applications. Batteries are improving a lot and becoming quite a bit cheaper too. Also many large car makers have gone the EV route and they are king makers. But who cares, the better technology will probably win out.

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  • [–] 3 points 2 years ago (1 child)

    The issue with this metric is they're talking about energy used to get the power. It completely ignores the fact that hydrogen can already be pulled from the atmosphere using solar plants. There are a few companies out there now that are developing stations that are basically automated.

    The ICE motors Toyota and Hyundai have shown, have very little loss of HP/Tq numbers from their gas counter parts. Unless the battery industry comes up with a super light, quick charging (5 mins) and long lasting battery, EV will be resigned to the city at best and no heavy workloads for it either.

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  • [–] 2 points 2 years ago (1 child)

    Efficiency still matters significantly with hydrogen solar panels, because solar panels aren't free.

    Suppose solar to wheel is 60% efficient in a battery electric vehicle, but 30% efficient in a hydrogen vehicle. You need half as many solar panels to power the battery electric vehicle, and spend at most half as much to charge it. That matters.

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