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Solar modules deployed in France in 1992 still provide 75.9% of original output power
(www.pv-magazine.com)
This is a most excellent place for technology news and articles.
That one doesn't seem like it's worth it at the regular price though, seeing as it's only 175W. You can get a 400W QCell Q.Peak panel for the same price or cheaper. I guess it's useful if your use case needs smaller panels.