In an experiment, one tube produced 440 microwatts. When the researchers used four tubes at once, they could power 12 LEDs for 20 seconds.

  • awesomesauce309
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    2 months ago

    What’s wrong with getting some more out of its kinetic energy?

    • HikingVet@lemmy.ca
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      2 months ago

      Unless you are harnessing a box store, factory or warehouse roof you aren’t going to have the throughput to generate any really useful amount of energy. Also hydro works best where there is constant flow. So sewers would be a better place if you could solve the solids issue.

      • ilinamorato@lemmy.world
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        2 months ago

        box store, factory or warehouse roof

        But isn’t that exactly the sort of implementation we’re talking about here? Especially if you deploy this in large farms around the watershed. One problem with dams is that they have limited potential energy, since you can’t really build a hydroelectric dam in the sky. Harnessing additional kinetic energy for free on its way to the reservoir, capturing energy that otherwise would’ve just gone into the “plop” sound on the dirt, seems like a reasonably good idea; especially if it’s cheap.

        Of course, there’s no way it’s ever going to rival solar or wind (or true hydroelectric). But I hope we learned our lesson long ago to not put all of our energy eggs in one basket.

        EDIT: Nah, you’re right, on a large scale this is unlikely to be able to pay its own manufacturing costs. Perhaps this is more useful as a small-scale energy source.

        • HikingVet@lemmy.ca
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          2 months ago

          This isn’t a terrible idea, and it could be useful as a source of emergency power in places that have high rainfall (paired with a battery system). From my background, I just don’t see it as viable for general use.

            • HikingVet@lemmy.ca
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              2 months ago

              Somewhere that has lots of drop, sure. But hydro relies on head pressure. Which is why most dams are a resevoir with multiple turbines.

      • Bronzebeard@lemm.ee
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        2 months ago

        Yeah but think of how many LEDs you could light for 20 seconds once a week if you spent thousands filling your roof with these!

      • awesomesauce309
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        2 months ago

        Ok so this plus dams equals more efficient dams. What’s the issue