• lewis6991@lemmy.world
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    1 year ago

    Solar panels aren’t truly renewable since they degrade over time and need to be replaced after around 20-30 years. Yes they can be recycled, but so can (and is) nuclear waste.

    Everything has a cost and you can’t escape entropy.

    • LoveSausage@lemmygrad.ml
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      1 year ago

      Minimum warranty for good solar panels at 90% is 30 years , they will last 60 (no one knows exactly) albeit not as efficient.

      • lewis6991@lemmy.world
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        1 year ago

        I just had some installed. Guaranteed 80% efficiency for 20 years. I heavily doubt they will last 60 years.

        Had energy storage installed as well. Only guaranteed 90% (~4500 cycles) for 10 years.

        EDIT: double checked the data sheet. They are actually 86% for 25 years with a rated 0.5% per year degradation rate.

        • LoveSausage@lemmygrad.ml
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          1 year ago

          Quite sure mine had 30 years at 90 % . But it was the really good mono ones. Storage is a completely different story. But hey even if they are down to 25% I would keep them and just add new ones.

          0.5 would mean 30 for 60 years also…

    • PersnickityPenguin@lemm.ee
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      1 year ago

      This is true; nothing is sustainable at geological time scales. Human technological civilization even less so. Just look at how badly North Africa, the Middle East and China’s environment has been degraded through thousands of years of organic (!) farming. The Middle East used to have enormous cypress forests, and North Africa was full of wetlands where the Qattara Depression now resides.