• Aniki@feddit.org
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      2 天前

      oh that yeah of course i saw it :D

      but that’s not why i said it. I did my own calculations here:

      Biodiesel takes much more area because the efficiency is much lower because plants metabolism isn’t so efficient, like iirc sth like 0.3% of sunlight energy end up in the fruits of the plants, compared to 20% efficiency for solar panels.

      • Gonzako@lemmy.world
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        2 天前

        Is it me or does it look genuinely possible when most rooftop space is not being actively used?

        • Aniki@feddit.org
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          2 天前

          i’m personally also against rooftop solar, partially for aesthetic reasons but more importantly for financial reasons:

          flat-area solar parks are significantly cheaper than rooftop solar (source 1, source 2), and they also don’t require a lot of land area (see comments above).

          “utility scale” and “PV frei” means flat-area ground-based solar parks, while “PV klein” and “PV groß” mean rooftop solar (small/big). “Stromgestehungskosten” means levelized cost of energy.