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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.
Oh yeah, how about coal? Does that get any less efficient over time? Exactly. I've been burning the same lump of coal for easily the same amount of time and it remains 100% efficient, that's the beauty of combustible fuel.
Photo?
That is a very neat bow 😄