Spray the panels with a hose to remove loose dirt and debris. Turn off the solar. Dust, dirt, pollen, bird droppings, and other debris can reduce energy output by 15–25%, according to the National Renewable Energy Laboratory. professional approaches and seasonal maintenance tips for optimal performance. Why Is Cleaning Important? — A Key Factor for Sustained High Efficiency The power generation efficiency of a PV system heavily depends on the cleanliness of the module surface. This comprehensive guide reveals the exact professional methods used by certified technicians to safely and effectively clean your solar installation without causing damage. That's it—no specialized products required. However, knowing what not to use is equally important. Pressure washers, abrasive cleaners, and harsh chemicals can permanently damage your panels and.
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