Spray the panels with a hose to remove loose dirt and debris. Over time, dust, pollen, bird droppings, tree sap, and other debris can cover panels, reducing their efficiency and power output. This guide shows you how to clean solar panels safely and effectively—backed by expert tips and the latest best practices for DIY and professional options. Although its maintenance is simple, to guarantee the effectiveness and good performance of photovoltaic cells it is essential to carry out periodic cleaning that, in addition, will extend their useful life. We explain how to clean solar panels so that you can keep your solar self-consumption. Regularly cleaning your solar panels is crucial to maintaining peak performance and ensuring their long-term efficiency.