Keeping Solar Panels Clean During Arizona’s Monsoon Season

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The dew point is rising, and it feels downright muggy outside right now – here in the Valley of the Sun. You know what that means – monsoon storms are on their way. And with the humidity and rain comes wind and plenty of dust. Many homeowners who have or are considering rooftop solar panels wonder how all the season’s blowing dust impacts solar production.

It is a fact that dirt and dust that settle on panels can block sunlight, reducing system efficiency. Flat-tilt panel designs are most likely to collect dust, but all panels will gather some after a dust storm. However, the good news is that in most cases, the decrease is relatively minor at first.

After a significant storm, you can rinse off panels with a hose and a mild detergent. We don’t recommend a pressure washer. The best way to do the job is on the ground with a long-handled implement. Remember – if you do choose to clean panels while on the roof, wear a hard hat and use a safety harness. Or, better yet, call in the experts at Cool Blew Solar. Along with removing dust and dirt, we can remove bird droppings, which can build up over time on a system’s microinverters, as well as on the panels themselves.

Keep Solar Panel Cleaning on Your Agenda

While your panels will still be producing plenty of energy before, during and after a monsoon storm, it is still a good idea to schedule regular cleaning. Why? Well, you can experience up to a 35% decrease in energy production if you go two or more years without a cleaning. That’s significant!

Want to learn more about installing a home solar system or cleaning one? Give the experts at Cool Blew Solar a call today.