Cleaning solar panels on a regular basis will increase the panels efficiency. Dirty solar panels lose 30% efficiency in producing power. So why hire Big Pane Window Cleaning to clean the panels? Photo-voltaic solar panels are unlike glass, an are a complex fragile array of cells. By having Big Pane use pure water panel cleaning systems solar panels can be free of chemicals cleaning products that can actually cause damage and deteriorate the surface of the panels. Chemicals may also leave residues which typically attract pollutants and dust. Plus, pure water is environmentally safe.