Yes. Again, location, location etc.. We find that there is a difference between soiling from dust, freeway exhaust and smog, salt water and agricultural areas. In areas near freeways in urban areas where there is a lot of traffic can produce an oily film on the panels in addition to normal dirt. Airport area can […]

Yes. What it is often overlooked by studies is that solar panels mounted at less than five degrees (almost dead flat) have a problem. When panels are mounted like this, the metal frame around the panel prevents water from running off of the panel. This is because the aluminum frame extends up approximately 1/8th inch […]