Professional Solar Panel Cleaning

Solar panels work by allowing light into the solar cells therefore the more light that hits a panel, the more power it will generate. Due to the upwards angle of solar panels, they are more prone to bird droppings and a build-up of general dust and dirt that does not wash off with just rain. This reduces the amount of light hitting the panel and reduces its output. As the projected energy figures claimed by solar panel manufacturers and installers are based on the optimum performance of clean solar panels, this build-up of dirt can adversely affect the panels ability to meet those projections. Solar Energy Power Association notes that dirty solar panels can lose 20% of their energy output. The National Renewable Energy Laboratory puts that figure even higher, at 25%. Although recent university research has shown that a dirty solar panel can lose 50% of its efficiency compared to a clean solar panel. Bottom line- it is important to regularly have your solar panels clean to maintain the efficiency of your panels and protect your investment.