The number of solar panels you'll need will rely on whether or not your solar method is 3kW or 6kW, and the size of solar panels you'll use. For example, if you install a 3kW solar panel program utilizing 350W panels, Then you definitely need to have 8 solar panels. https://cloudwayui.com/ultimate-guide-to-window-cleaning-supplies-solar-cleaning-tools-soft-wash-supplies-and-pure-water-systems/