Specialists in traditional methods of cleaning. You N View is a husband and wife owner/operator team offering professional window and solar panel cleaning services for residential and commercial properties, rental property move-in/move-outs and house sale prep window cleaning. Dirty solar panels translates to less electricity generated. That loss may range as high as 25% in some areas according to the National Renewable Energy laboratory. Individual dealers have reported losses as high as 30% for some customers who have never cleaned their panels.