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submitted 1 year ago by sv1sjp@lemmy.world to c/world@lemmy.world
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[-] lewis6991@lemmy.world 0 points 1 year ago* (last edited 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 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..

this post was submitted on 30 Aug 2023
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