Most homeowners, with solar systems do not realize that rain alone, won't rinse off the baked dirt that accumulates on their solar panels. Solar panels must be cleaned on a regular basis so they can produce energy at the optimum levels. Phoenix Glass Cleaning offers expert and efficient solar panel cleaning at affordable prices, suitable for every budget. Cleaning your solar panels actually makes you money! Dirty panels can lose up to 30% of their energy production!We use only pure water to clean the panels so that no "hard" water is left behind and your solar panel warranty isn't voided due to the use of detergents.