A new cleaning method could remove dust on solar installations in water-limited regions, improving overall efficiency

https://techxplore.com/news/2022-03-method-solar-water-limited-regions-efficiency.html

"In practice, at scale, each solar panel could be fitted with railings on each side, with an electrode spanning across the panel. A small electric motor, perhaps using a tiny portion of the output from the panel itself, would drive a belt system to move the electrode... automated or controlled remotely. Alternatively, thin strips of conductive transparent material could be permanently arranged above the panel, eliminating the need for moving parts"

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