In Arizona dust will limit the output of your solar panels. By not cleaning them, you will lose more on your investment in the long run. As a matter of fact, scientists say that a dirty solar panel can lose as much as 25% of power compared to a clean one. So if you want to get a maximum return on investment on your solar panels, you have to keep your solar panels maintained. The real question is, how frequently?

The cleaning frequency really depends on the area you live in. In the Phoenix, Arizona valley for example, we get a pretty good amount of dust, so you have to clean your panels at least two to three times a year. 

Generally, it is advised to clean your panels every 6 months. 

We use pure water. We do not use tap or hose water since these water sources are filled with minerals that can leave residue and cause your panels to be damaged. Our water is filtered through to remove dissolvable solids found in tap water. The system we use is called the “Water Fed System”, it is a machine with a pole and brush that cleans your systems with pure water leaving your solar panels streak-free. We will rinse and repeat until we get the results we want.