Quick Answer
Minimize dirt accumulation on bifacial solar arrays by regularly cleaning the top and bottom surfaces, using a soft-bristled brush and mild soap solution, and implementing a maintenance schedule with a cleaning frequency of every 6-12 months depending on the environment.
Cleaning Techniques
For bifacial solar arrays, it’s essential to clean both the top and bottom surfaces to maintain optimal performance. A soft-bristled brush is recommended for removing loose debris, followed by a mild soap solution and water to clean the panels. Avoid using high-pressure washes or harsh chemicals, as they can damage the panels’ coatings.
Regular Maintenance Schedules
Implement a regular maintenance schedule to ensure the bifacial solar arrays remain clean and free of debris. For areas with high dust or pollution levels, cleaning every 6 months is recommended. In areas with moderate dust or pollution levels, cleaning every 9-12 months is sufficient. In areas with low dust or pollution levels, cleaning once a year or every 18 months is sufficient.
Environmental Factors to Consider
When determining the cleaning schedule for bifacial solar arrays, consider environmental factors such as dust, pollution, and weather patterns. For example, areas with high winds or sandstorms may require more frequent cleaning, while areas with heavy rainfall or fog may require less frequent cleaning. Additionally, bifacial solar arrays installed in coastal areas may require more frequent cleaning due to saltwater exposure, which can damage the panels’ coatings.
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