Do solar panels need cleaning?

There are some instances where solar panels might need cleaning, but most of the evidence says solar panels are self-sufficient and low-maintenance. We’ll get to the best way to clean your solar panels in a minute.

How do you clean solar panels?

The best way to clean solar panels is to use a soft-bristled brush or squeegee specifically designed for solar panels, along with a mild soap or specialized cleaning solution. Avoid abrasive materials, excessive pressure, and cleaning during the hottest part of the day. Rinse thoroughly and dry the panels to prevent water spots.

How much does solar panel cleaning cost?

Companies typically charge $5 to $15 per panel for solar panel cleaning services. Not cleaning your solar panels can lower your solar savings by $79 per year, on average. You can clean solar panels yourself in a few simple steps or seek out a cleaning company that can do it for you.

How do I know if my solar panels need a cleaning?

A drop in energy output can be an indication that your solar panels could use a cleaning. The mySunPower® app gives you complete control over your SunPower solar power system, allowing you to track and monitor your energy production in real-time. With SunPower, you'll always know exactly how well your panels are performing.

What should I do if I need to clean my roof?

As a general rule, stay on the ground. Nobody should get up on your roof without a secure ladder and proper fall protection equipment. We highly recommend hiring a professional if there's a need to go on the roof for panel cleaning. Avoid using hard or mineral-rich water. It may damage panels over time.

Does rain clean solar panels?

Rain, in essence, is nature’s way of washing and cleaning. It does a decent job in removing loose dust and light dirt from the solar panels. If your panels are installed at a steeper angle, the rainwater can more efficiently wash away the surface dust. However, the efficiency of rain as a cleaning agent is dependent on the nature of the dirt.