Quick Answer
To handle snow buildup on bifacial solar arrays, regular monitoring and maintenance are crucial. This involves employing specialized cleaning techniques and ensuring proper array design to minimize snow impact. A snow load of 20 pounds per square foot or more may require specialized cleaning equipment.
Bifacial Solar Array Design Considerations
When designing bifacial solar arrays, it’s essential to consider the potential impact of snow buildup. Bifacial panels can lose up to 30% of their efficiency due to snow cover, so proper design can help mitigate this issue. One effective approach is to use a slight tilt angle, typically between 15° to 30°, to allow snow to slide off the panels more easily.
Snow Load and Cleaning Techniques
Regular monitoring of snow load and employing specialized cleaning techniques can help maintain optimal array performance. For snow loads of 10-20 pounds per square foot, soft-bristled brushes or air-based cleaning systems can be effective. For heavier loads, a combination of air-based cleaning and gentle scraping may be necessary. It’s crucial to avoid using high-pressure washes, which can damage the panels or their coatings.
Snow Removal Equipment and Maintenance
To ensure efficient snow removal, consider investing in a tracked or wheeled snow blower designed specifically for solar arrays. These machines can effectively remove snow from bifacial panels without causing damage. Regular maintenance, including panel cleaning and inspection, is also vital to prevent snow buildup and ensure optimal array performance.
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