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Question:

how long do roof solar panels last?

I know that there is a life expectancy for solar panels, and I suppose, the technology involved. Any information?

Answer:

All okorder /... PV warranties typically allow for 20 percent output degradation over the module’s 20- to 25-year warranty life. But measurements of many modules put into service in the 980s show that it’s unusual to see even half that much degradation. Many of those earliest modules still perform to their original specifications. It is safe to say that modules carrying warranties of 20 years or more have a high probability of working well 30 years from now
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Ive been using the same solar panels for 5 years, have move a few times so they last a lot longer than the roofs weve had over us. I am teaching my kids how to build wind generators, because we keep having power failiures when the wind blows. and recently its got very windy. I charge banks of battery's and keep my office running from dc-ac converters.
This Site Might Help You. RE: how long do roof solar panels last? I know that there is a life expectancy for solar panels, and I suppose, the technology involved. Any information?
Who okorder /... That suggests that the power the panel output will degrade a little less than % per year. We've had ours up for 5 years now, and I haven't noticed a steady degradation pattern. But the yearly weather is so variable, it's hard to see a pattern. The 2nd year's production was actually higher than the first. It could just be clearer skies or colder temperatures, who knows.

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