The process of cleaning the surface of solar panels includes removing dirt, debris, and other contaminants that can reduce their efficiency. Washing solar panels usually involves using a specialized cleaning solution and tools, such as soft brushes or microfiber cloths, to scrub away the contaminants. It is important to use the proper cleaning techniques and tools to avoid damaging the panels or their coatings. Washing solar panels can help to increase their energy output and extend their lifespan, as well as prevent potential safety hazards, such as fire risks caused by the build-up of debris on the panels.