Quick Answer
The best mounting options for bifacial arrays are those that allow for maximum sunlight exposure on both the front and back sides of the panels, such as open-rack or tracking systems with a clearance of at least 20-30 cm. Adjustable mounting systems can also enhance energy production by optimizing panel angle and tilt.
Optimal Mounting Configurations
For bifacial arrays, open-rack systems are ideal, as they provide a clear path for rear-side sunlight to reach the panels. A mounting height of 2-3 meters above the ground and a clearance of 20-30 cm between the panels and the ground is recommended to maximize rear-side irradiance. This setup allows for efficient energy production while minimizing shading and reducing material costs.
Tracking Systems for Enhanced Energy Output
Solar tracking systems for bifacial arrays can significantly boost energy production by adjusting the panel angle and tilt to face the sun. Dual-axis trackers with a rotation range of -20 to +20 degrees and a tracking speed of 0.05-0.10 degrees per second can optimize energy output. These systems can also improve panel durability by reducing the impact of wind and snow loads.
Considerations for Bifacial Array Mounting
When selecting a mounting system for bifacial arrays, it’s essential to consider factors such as structural integrity, wind and snow loads, and panel compatibility. The mounting system should be designed to handle the weight of the panels, withstand extreme weather conditions, and accommodate any necessary adjustments for optimal performance. By choosing the right mounting system, solar installers can ensure reliable and efficient energy production from bifacial arrays.
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