Leaves, bird poop, and airborne particles (from dirt and pollen) all dirty your solar panel investment. Dirty panels mean power loss -- grime and debris reduce the ability of the solar array to perform at full capacity. 

The potential energy loss depends on the level of filth your solar panels have accumulated. Energy loss could reach 25%, but some reports bring the number as high as 30% for consumers who never clean their systems.

Don't let your dirty solar panels keep you from using them at full capacity!  Mountain Window Cleaning can come out and thoroughly clean your panels.   After cleaning most customers see an increase of 5%-30% in power capacity.