To effectively polish solar panels, follow these steps: 1) Ensure safety by using appropriate gear, 2) Gather materials such as a soft microfiber cloth, distilled water, and a gentle soap solution, 3) Carefully remove dirt and debris using a soft brush, 4) Wipe down the panels. To effectively polish solar panels, follow these steps: 1) Ensure safety by using appropriate gear, 2) Gather materials such as a soft microfiber cloth, distilled water, and a gentle soap solution, 3) Carefully remove dirt and debris using a soft brush, 4) Wipe down the panels. To effectively polish the surface of aged solar photovoltaic panels, there are several essential steps to follow. Begin by ensuring safety, as these panels typically are installed on rooftops or in elevated locations, necessitating appropriate gear and precautions. Utilize the appropriate. On a less regular basis you could lightly polish the surface of the solar panel. Fall out from cars, boat engine exhaust, city soot, salt build up, dust and dirt will land on your panel. The modules are often mounted on roofs at a steep angle of 45 degrees, so take measures to ensure operator safety. When should I clean photovoltaic panels? You should clean solar systems using the right. Concerned that cleaning might damage your PV panels or pose safety risks? Follow these simple guidelines for safe and effective cleaning: When to Clean: Avoid cleaning during peak sunlight hours; early morning or late afternoon are ideal to prevent water spots from rapid evaporation.