Hanging Out With Sun

Hanging out with the sun has many solar benefits; yep you can whip up a concept design that harnesses the solar energy and then juices up your gadgets. How does this Sunbox work then? It plays on this theory that on your way out to work, you hang out the device on your clothesline and when you get back in the evening, it’s all charged up. Latch it on to your TV, Music System, hairdryer; basically stuff that you use only when you’re back home!

Designer: Jinsik Kim

Sunbox Solar Charger by Jinsic Kim

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45 Comments

  • Gunnar Tveiten says:

    Can we -please- get some elementary-school physics into these “designers” ? This ain’t design, it’s fantasy.

    This little gem is around 5×5 cm (2×2 inches) or around 1/400th of a square-meter. The sunlight falling on a square-meter is around 400W, so this thing will be hit by 1W.

    But it gets better. Current solar-cells are at most 20% efficient, and no battery in existence has a cycle that wastes less than around 30% of the energy as heat, thus in an hour in sunglight, this thing could conceivably succeed in capturing around 0.17wh worth of electric energy.

    It also seems to have cirtuitry to convert the stored battery-energy to high-voltage AC, which will also not be 100% efficient, and which adds to cost, but let’s be generous and ignore that.

    Conclusion ? Yeah, you can plug in your hairdrier when you come home.

    After 10 hours in the full sun, oriented perfectly towards the sun NOT hanging vertically like this) you’ll have connected 1.5 watt-hours. Since the hairdrier draws around 750W, that means you can power it for a single minute.

    This is in an ideal world, offcourse. In the real world, you’d be lucky to get a fraction of a minute out of it.

    In short: the thing couldn’t actually WORK as advertised, not when you consider the physics of it, nevermind the engineering.

  • nomadman01 says:

    this looks like a great idea, but I don’t think you’d be able to fit a 220v converter in there.
    would it be possible to go with a usb?

  • mif991 says:

    Thanks Gunnar, well said. Most products here are fantasy driven with the hope of future engineering innovations or breakthroughs. Hopefully designers will start thinking things through and researching before they post their work…but that is wishful thinking as well.

  • Gunnar Tveiten says:

    Engineering is one thing. If you design a product, and say: This product will only work if solar-cells can somehow be made 50% efficient, while current ones are at best half that. Then okay.

    But if you design a product, and reality is that for the product to work at all, you’d need the sun to shine 100 times brigther, batteries to improve in density by a factor of 100, inverters for a kilowatt to fit in a single cubic cm of space, solar-cells to stop caring if they’re actually pointed at the sun or not, etc etc etc

    You’re no longer talking modest engineering-improvements, you’re talking about a product that fundamentally can not work in the universe we actually live in.

    At that point, it’s just fantasy.

  • Tim says:

    Wait – it looks like it has solar cells on *both* sides! So you should be able to watch TV for at least 30 seconds…

    Appliances of the future will have multiple power cords in parallel so you can plug into several of these things at once. The inverters will talk to each other wirelessly to synchronise their AC waveforms. Then you can make it through an entire commercial break! 🙂

    • Gunnar Tveiten says:

      After you orient it so that the sun shine on both sides of it simultaneously ?

      Wait, maybe you’re supposed to put up a MIRROR reflecting sun towards the other side 😀

  • Marilena says:

    Dear Jinsun Kim
    We are a designagency in berlin who publish a trendbook this year and we would love to includ your project sunbox with a image. Unfortanetly I cant find a contact, so I just take a screenshot, if I dont hear anything. Please take this comment as a officiall request.
    Thank you so much!
    All the best
    Marilena

  • Marilena says:

    Dear Jinsun Kim
    We are a designagency in berlin who publish a trendbook this year and we would love to includ your project sunbox with a image. Unfortanetly I cant find a contact, so I just take a screenshot, if I dont hear anything. Please take this comment as a officiall request.
    Thank you so much!
    All the best
    Marilena

  • Jeffindabox says:

    The idea is great, the design is fine, the actual realisation might not be easy to concretize today, considering today's technologies and all the blabla mentionned here, but the vision in itself is a welcome step towards our future. Many thanks for that, Kim.
    Never forget that Yankodesign.com is a designers website that put "form beyond function", and not a engineer website…

  • Jeffindabox says:

    The idea is great, the design is fine, the actual realisation might not be easy to concretize today, considering today's technologies and all the blabla mentionned here, but the vision in itself is a welcome step towards our future. Many thanks for that, Kim.
    Never forget that Yankodesign.com is a designers website that put “form beyond function”, and not a engineer website…

  • Will says:

    Possibly the most ill-concieved thing I’ve ever seen on this site. I’ve got a car design that takes 4 people, runs on grass cuttings and is the size of a bean can, the pictures sure look pretty though.

  • Grammar Nazi says:

    Holy crap. I can’t believe how many infographics I have seen lately where the author couldn’t construct a proper sentence in English. It is PAINFUL.
    I also echo what Gunnar said: too many “designers” too high off their ass to stop and think about the reality of constructing their ideas.

  • dwindle says:

    No, this is form BEFORE function. It will be a hundred years before something like this will be useable. This cute device could power a phone or tablet, but only for a few hours at 100% charge.

  • dwindle says:

    Actually, there’s no way the battery cold give out much more than 75 watts at today’s technology, assuming you’re using the best batteries on the market.

Comments are closed.