3 ms·
From what I've read, solar panels slowly decrease to 80-85% of their rated output after about 20 years, then stop decreasing. Even 30 year old panels seem fine[
by theandrewbailey 8y ago
From what I've read, solar panels slowly decrease to 80-85% of their rated output after about 20 years, then stop decreasing. Even 30 year old panels seem fine[0].
[0] https://www.greenbuildingadvisor.com/article/testing-a-thirty-year-old-photovoltaic-module https://www.greenbuildingadvisor.com/article/testing-a-thirt...