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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.
Jesus Christ. Look, back in the Stone Age when I went to school the coolest calculator was the TI-36 Solar. It was already that mundane.
Naturally, I used a non-solar Casio, because I wasn't one of the cool nerds.
damn you just reminded me my mom bought a basic calculator with tiny solar panel 25 years ago : it is still working !
And then there are the calculators with fake solar cell windows