Dirty panels? There are some instances where solar panels might need cleaning, but most of the evidence says solar panels are self-sufficient and low-maintenance. We’ll get to the best way to clean your solar panels in a minute. But first, let’s look at when and why you might need to invest in solar panel cleaning equipment or hire a professional cleaning service.<\/p>\n
Google did a study<\/a><\/u> on the need to clean solar panels. They found that tilted panels don\u2019t require cleaning as much as flat panels. This was confirmed by another study by engineers at the University of California, San Diego<\/a><\/u>, which found that a minimum five-degree angle helped debris to slide off the panels.<\/p>\n