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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.
One other point I see I left out was physical size of panel as related to efficiency of converting light to electricity and the reason that 2024's 22% efficiency is so important over 1992's 12%. The 2024 100w panel will be about half the size of the 1992 100w panel. This is important because space to put panels (and cost per panel) are large factors in being able to install solar. So you'd be able to install many more 2024 100w panels in the same space as 1992 100w panels.