What what your time vs degradation? I see quite a few solar panels in my area showing up on Facebook Marketplace and other online classifieds that seem to be about 10 years old being sold for a "bigger system". But I'm curious if the real story is that straight forward? Are they significantly degraded? Did the controls or inverters fail, and the owner decided it wasn't worth the hastle? I don't know. The headline price seems attractive, but if they're only putting out 10% of name plate, not worth the effort to install.