Cleaning Your Solar Panels
A build-up of dust or debris can affect the production capability of your solar panels, which can slowly reduce your savings over time. Weather is a major factor in how frequently you may need to clean your solar panels.
For example, if your area is experiencing frequent storms, you may need to check on your system more often throughout the season as branches or debris may land on and cover your panels, resulting in shade and reduced performance because the panels are no longer exposed to direct sunlight. On the other hand, if you are in a drought with little precipitation, your panels could become covered in a layer of dust—blocking the sunlight needed to hit them. (Customers across all the states we serve experience dust build-up at some point.)
The more time passes, the more build up—and the harder it will be to get your panels clean. Keeping your panels clean is a balancing act between performing solar maintenance too frequently and waiting too long, to the point when it drastically affects your production or cleaning becomes an all-day chore.
A good rule of thumb is to do a maintenance sweep twice a year. To do so, simply wash the panel with water. Do not use soap or detergents. If there is thick dirt or grime, wash with cold water and rub the panel surface with a sponge, and avoid using a metal brush. If you do the cleaning yourself, the cost is only your time and the risk of being on the roof. For a more in-depth resource check out our article on how to Clean Solar Panels.
Snow can be another source of headache as a drift can fully block your solar system from sunlight. Moving large masses of heavy ice or snow at once may put you at risk of injury or damage to your solar equipment. If you live in an area where this may be an issue, it is wise to ask your solar panel installer whether it is safer to shovel the snow off yourself or allow it to naturally melt away.
With a sound roof and high-quality mounting hardware, it is unlikely heavy snow will damage your solar system by weighing it down. While snow can weigh up to 40 lbs. per cubic foot, a solar panel can hold between 50-75 lbs. per square foot.
When in doubt on how best to clean your panels, reach out to solar experts with training and tools to help you with these specialized maintenance services.