Solar panels last longer than expected -- after 30+ years some panels still generate 80% of their original power.

Solar panels last longer than expected -- after 30+ years some panels still generate 80% of their original power. At least in the study area (which was Switzerland) panels made in the 80s and 90s had a degradation rate of about 0.25%/year, which is frankly not all that much.

Solar panels. They're just a really good energy investment.

https://pubs.rsc.org/en/content/articlelanding/2025/el/d4el00040d