And how do they keep all those panels clean? Robots, like these from Ecoppia: https://www.ecoppia.com/wp-content/uploads/2016/08/Product_Datasheet_130314.pdf

And how do they keep all those panels clean? Robots, like these from Ecoppia: https://www.ecoppia.com/wp-content/uploads/2016/08/Product_Datasheet_130314.pdf https://www.ecoppia.com/wp-content/uploads/2016/08/Product_D... https://www.youtube.com/watch?v=VIH-C29N82o https://www.youtube.com/watch?v=VIH-C29N82o