• Shawdow194
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    3911 months ago

    Argh I hate how they never show installation costs upfront…

    • @dom@lemmy.ca
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      3311 months ago

      People think the cost of the panel is the most expensive, but it’s actually the 151 million km copper cable

      • FZDC
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        1611 months ago

        Why can’t we just wirelessly transmit the power, maybe have it hit a collection device that can harness about 4 kwh/m^2/day

        • @dom@lemmy.ca
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          11 months ago

          Hey that’s not a bad idea. We could install these receivers on people’s roofs or in big parking lots

      • @jarfil@beehaw.org
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        1311 months ago

        Copper wouldn’t cut it, too much resistance. You need a superconductor… only problem is how to keep it cold enough at below 1000C.

        • @redcalcium
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          1011 months ago

          Easy, just cool it with some sort of space refrigerator. Solar powered of course.

          Net electricity arrived on earth after cooling cost: 1kwh/day

  • @redcalcium
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    511 months ago

    Is it true that you can get 4kwh per day per square meter? My average electricity consumption is ~15kwh/day, so if I can potentially offset most of my grid usage with just 4 square meters of solar panel, that seems very attractive. I live in a tropical country btw.

    • @Cenzorrll@beehaw.org
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      1211 months ago

      No, 4kwh is about the daily amount of sun hitting 1 square meter. Solar panels can capture about 20% of that

    • @ukcreation@feddit.uk
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      311 months ago

      Each of my panels has a theoretical capacity of 390 Watts per hour. So 4kwh in a day seems very feasible. My panels are certainly not the cutting edge of technology!

      • MxM111
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        11 months ago

        Your 390W is if the sun is in the zenith and hitting your panel at right angle. Also, are you sure your panel is 1m^2?