this post was submitted on 30 Aug 2023
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[–] [email protected] 14 points 1 year ago (3 children)

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.

[–] [email protected] 1 points 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.

[–] [email protected] 1 points 1 year ago (1 children)

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

[–] [email protected] 0 points 1 year ago* (last edited 1 year ago) (1 children)

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.

[–] [email protected] 2 points 1 year ago* (last edited 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..

[–] [email protected] -1 points 1 year ago* (last edited 1 year ago)

Let's not forget about nuclear fusion, which will be way more efficient and have less waste if we can figure it out!!!😉