26 Oct '12, 3pm

30-Year-Old Solar Module Performing to Factory Specs

for up to 25 years at 80% nominal output. Over the years, all solar panels will degrade somewhat, but crystalline silicon panels have a much slower rate of degradation than thin film. To be considered effective by most manufacturers, a solar panel has to operate at least 80% of its rated peak output. So even when some older modules may not reach that 80% mark of the rated peak output, they can continue to produce smaller amounts of energy for years after their warranties are up.

Full article: http://www.renewableenergyworld.com/rea/blog/post/2012/10...

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