Polywater® Solar Panel Wash is specially formulated for spot-free cleaning of all types of solar panels without oxidizing or abrading aluminium rails and mounting apparatus. Many common car-wash soaps and window cleaners contain alkalines that promote oxidation and require a deionized water rinse.

Dust, bird droppings, polluting particles, pollen, tree sap, plant matter among other elements reduce the overall effectiveness power generation of the solar panel.

A 2011 study by the World Academy of Science concluded that "accumulated dust on the surface of photovoltaic solar panels can reduce the system's efficiency by up to 50%." Panels must be cleaned regularly to maximize system performance and longevity.

Just one panel in a string operating at 10% lower than full capacity due to contamination results in the entire string operating at the same 10% performance loss. This is known in the industry as the "Christmas-lights effect". The nominal cost of regular cleaning with Polywater® Solar Panel Wash yields big savings by increasing panel capacity.