Comment on Negative electricity prices registered in nearly all European energy markets

• prettybunnys@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

  Or desalinate

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  • callcc@lemmy.world ⁨7⁩ ⁨months⁩ ago

    Apparently dealing with the brine is a big issue though. Source: heresay

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    • threelonmusketeers@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

      Evaporate to dryness and sprinkle on roads and/or fried potatoes?

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      • callcc@lemmy.world ⁨7⁩ ⁨months⁩ ago

        I’m afraid that’s not how it works. You’ll have enormous amounts of really salty water that you need to get rid of. Usually you’ll just put back from where you took it thereby increasing salinity which is not good™ for ecosystems.https://wired.com/…/desalination-is-bo…

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• naeap@sopuli.xyz ⁨7⁩ ⁨months⁩ ago

  And as oil is cheap, we can use that to generate the needed energy!

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  • drunkosaurus@kbin.social ⁨7⁩ ⁨months⁩ ago

    ....wait.

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• taladar@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

  Collecting water from the air is not really viable in the parts of the world where lack of water is an issue since humidity is not very high there. You would need to filter huge amounts of air even just to theoretically get enough water, never mind practical concerns like efficiencies of less than 100%.

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  • bitfucker@programming.dev ⁨7⁩ ⁨months⁩ ago

    Dude, even heaters cannot get to 100% efficiency.

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    • taladar@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

      The point is that even with 100% efficiency you couldn’t get enough water out of the air because the dry air simply doesn’t hold that much water.

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      • alberttcone@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

        That’s 17g or 17cc per cubic metre, not 17 litres!

        In dry countries the relative humidity can be low - sub 40% is common. That said, the absolute water carrying capacity increases rapidly with temperature, so at 40C, the saturation mass is more like 50g/m3 and at 40%RH it still carries more water than 100%RH air at 20C.

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    • faultyproboscus@sh.itjust.works ⁨7⁩ ⁨months⁩ ago

      …heaters are the one thing that’s 100% efficient. And if you want to go even further, look up heat pumps.

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      • bitfucker@programming.dev ⁨7⁩ ⁨months⁩ ago

        I mean, kinda? What sort of heater are we talking about and how do we measure its efficiency? But, if the definition is just converting energy to heat, without specifying where the heat needs to be, then sure. Every heater has 100% efficiency. Otherwise, there will always be a loss at transport and others.

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