Q&A · Off-Grid
How do different solar panel manufacturers recommend cleaning techniques?
April 5, 2026
Quick Answer
Solar panel manufacturers generally recommend cleaning techniques that avoid damaging the panels or their connections, such as using soft brushes and water with a pH level close to neutral.
Recommended Cleaning Techniques
Many solar panel manufacturers, including SunPower and Trina, suggest cleaning the panels at least twice a year, or as needed, to maintain optimal performance. For hard-to-reach areas, a soft-bristled brush can be used to gently sweep away debris. Avoid using high-pressure washes, which can damage the panels or their connections.
Water Quality and Pressure
According to Panasonic, water with a pH level between 6.5 and 8.5 is ideal for cleaning solar panels. Using water with a high pH level or high pressure can damage the panels’ surface or compromise their electrical connections. It’s also recommended to avoid using household cleaners or detergents, which can leave residues that reduce panel efficiency.
Specialized Cleaning Tools and Methods
Some manufacturers, such as Jinko Solar, recommend using specialized cleaning tools, such as squeegees or soft cloths, to remove dirt and debris from the panels. These tools can be used in conjunction with a gentle cleaning solution, such as a mixture of water and a small amount of white vinegar. Regular cleaning and maintenance can help extend the lifespan of solar panels and ensure optimal performance.
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