Posted on 10/24/2020 4:14:07 AM PDT by Kaslin
True indeed.
“ Depends on the panels. I have a panel from 2004 still going strong. Cheapo panels will derate faster, and some may fail.”
Lots are cheapo’s from China. Some get damaged by wind, hail & debris. Some are covered in ice all winter and that creeping freezing/thawing water messes ‘em up.
And sometimes you get lucky!
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