Dip your sponge or cloth in water and wipe the solar panels from top to bottom. . You've probably wondered: "Can't I just wipe my photovoltaic panels with a wet cloth?" After all, it seems like a quick fix for dusty solar arrays. Well, here's the kicker: 68% of residential solar owners use improper cleaning methods, according to the 2025 SolarTech Industry Report. Use a squeegee or a soft cloth to remove excess moisture. Solar panels need regular cleaning to maintain peak efficiency, but water isn't always available or. . In most cases, the best way to clean solar panel glass is with a soft cloth and biodegradable soap. Always avoid using harsh materials, such as.
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