• Kbobabob@lemmy.world
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    2 years ago

    The road-legal car has a top speed of 145 kilometers (90 miles) per hour. On a sunny day, its battery range is around 710 kilometers (441 miles) on roads, and around 550 kilometers (342 miles) off-road, depending on the surface. In cloudy conditions, the team estimates the range could be 50 kilometers less.

    This actually seems pretty good. I suppose those numbers would go down over time and depending on how dirty they are.

    • MooseBoys@lemmy.world
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      2 years ago

      That’s by draining the battery, not by sustaining a charge. If it gets 710km in the sun and 660km in cloudy weather, it probably gets 610 without any solar panels at all.

  • JJROKCZ@lemmy.world
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    2 years ago

    Ugly as sin but I’m down if I can drive it mostly solar and plug in when needed in a more temperate climate

    Edit: I feel like a lot of you are forgetting it just needs to get you to work, where it sits in the sun for 8-12 hours, then home where it can be plugged into homes or left outside for non-homeowners. If it can build enough charge during that work parking lot for me to get home and then top up on the home charger, that’s a huge plus over just plugging in and eating grid energy all the time. I’m not expecting the thing to have no battery and just convert sunlight to movement like magic jfc….

    • Ilovethebomb@lemm.ee
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      2 years ago

      You wouldn’t, there is actually very little energy in solar for an array the size of a vehicle roof, and it would likely take days to recharge.

      • JJROKCZ@lemmy.world
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        2 years ago

        I can’t YET, this is clearly early technology, in a few years who knows. Remember we went from not being able to fly to landing on the moon in a lifetime

        • Ilovethebomb@lemm.ee
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          2 years ago

          The problem is, there just isn’t that much energy in sunlight, so even a perfect solar panel that captured 100% of the sun’s energy wouldn’t get you very far.

        • BassTurd@lemmy.world
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          2 years ago

          I’m not very well versed in solar tech, but what I think I know is that we’ve already approached about the max efficiency out of solar already, so there probably won’t be large gains going forward.

  • ShortN0te@lemmy.ml
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    2 years ago

    There is no actual information on how self sufficient the car actually is. There is only 1 number which states how long the car drives on a sunny day with solar+battery combined.

    The car probably needs to charge for days via the solar panels in order to fill up the battery.

  • Immersive_Matthew@sh.itjust.works
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    2 years ago

    How on earth can they get that much solar area power on a car? Many others have tried and it has always said there is just not enough space on a car to generate the amount of solar you need less ultra light, impractical cars. Feels like BS especially since there are no details.

  • totallynotarobot@lemmy.world
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    2 years ago

    Misread headline as “world’s worst off-road solar suv” and thought, “it’s nice there’s enough competition in this space for there to be a worst one.”

  • MrSqueezles@lemm.ee
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    2 years ago

    uses “lightweight and robust” composite materials to cut weight

    Pretty great as an experiment. I wonder how this would fare in crash tests, whether there’s a way to make composites work in practical scenarios.

  • nymwit@lemm.ee
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    2 years ago

    This is a neat project…and terrible reporting.

    Did they start out with any charge? How long to charge it fully via solar? How long it took them to do their trip? You could easily read this and think they did it by driving the full range (one of the few stats they give) out every day unless you’re knowledgeable enough to see what they’re not telling you. Is that range at 30mph? People are reading range figures and thinking, “well, gee, the EVs I can buy only do X and this does Y!”, which isn’t comparable at all without how that range is defined. If those figures shouldn’t be compared to regular cars, then say it in the article! This is a 20-30 mile a day charged-by-solar-in-the-desert-near-the-equator vehicle, which isn’t nothing, but not really as presented. Greenwashing (it’s probably not) or whatever this should be called doesn’t help the needed planetary shift away from fossil fuels.

    Looking for other reporting (where are other commenters finding the duration of the trip?):

    Guardian - no mention of time.

    bonus: “We hope this can be an inspiration to car manufacturers such as Land Rover and BMW to make it a more sustainable industry. The car was actually very comfortable in the off-road conditions as it is very light and does not get stuck.”

    Remind me how it was so lightweight again? Does it have LR & BMW level noise damping? It surely had AC and all that right? I don’t know because that info wasn’t provided. You don’t need to convince LR and BMW, you need to convince consumers to go without those.

    Daily Mail - no mention of time

    Designboom - no mention of time

    Jalopnik - no mention of time, which is disappointing for a car specific site

    This is a cool project and it’s cool university students did it, but why leave out such a misleading pieces of information? It’s bandied about as a “showing people it’s possible” thing as in, “you could have a solar car!”, but leave out all the bits that really make it possible, like forgoing AC or the daily miles driven. That none of the reporting on this has this information either means [puts on tinfoil hat] it’s a vast conspiracy to make green stuff look more palatable [tinfoil off], it’s all confluence of interest in making it look more palatable, or the information just wasn’t given out, or they’re all referencing the same source news-wire style. Frustrating.

    Where’s the real information? I feel like we’re in a race against time to move away from fossil fuels so things like this need to not be misleading.

    Edit - I’m stupid, it does say week and a half long…which only proves the point I think in not contextualizing range and such, because that’s a long time

  • zloboslav@lemm.ee
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    2 years ago

    But why do they keep making those eco concept cars look so goofy? Wouldn’t it be better marketing if it looked cool instead? I don’t get it…