Even though your solar system doesn’t need a lot of maintenance, your solar panels function more efficiently when they are clean rather than dusty or dirty. The energy output of your solar panels can be lessened if there is dust, grime, or dirt. According to a study conducted in Spain, the average performance of solar panels is reduced by 4.4% after 1 year of dust buildup. However, if there are long periods of no rain, daily energy losses can be higher than 20%.
Dirt, pollen dust, leaves, …
