Many people don’t consider what happens to solar panels after construction, and how they are kept in good condition to ensure maximum energy output. Cleaning solar panels forms a key part of the operation and maintenance performed on such systems during their life time. The frequency of cleans depends on a variety of factors, such as seasonal weather patterns and conditions at the solar PV system’s site location. Here’s a video demonstrating one approach to the cleaning of solar panels, and some of the aspects one needs to be aware of for optimal system performance.