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See-Through Windows Make Clean Electricity From Raindrops
(cleantechnica.com)
This is a most excellent place for technology news and articles.
Not sure where you got that idea from, but how would that generate a meaningful amount of energy? It seems very unlikely that such a system would ever recover the energy spent on its construction.
I think it’s because you said, “Any system that gains some energy from a passing car,” not that anyone mentioned turbines explicitly.