As solar panels sit stationary on the roof, debris, dust, and dirt will accumulate over time. By accumulating dirt, the solar system’s efficiency drops as blocked cells fail to produce at maximum capacity. Because of this, it makes sense to clean your panels once or twice a year, depending on where you live. If the process isn’t done by a professional, the panels can be scratched or damaged. EnergyAid’s experienced technicians have cleaned systems all over California and Arizona leaving them at maximum efficiency.