> operational solar assets are continuing to experience higher than expected rates of degradation, with annual degradation in the field observed at around 1%.

> operational solar assets are continuing to experience higher than expected rates of degradation, with annual degradation in the field observed at around 1%. So, after 33 years (12,000 days producing, oh, 10kWh per day = 120 MWh), they'll only put out 2/3 of their rated output? ? Without doing the financial math, already sounds like a damn good investment to me. And, I'd guess, we'll get better at making them in that time.