Quick Answer
Bifacial solar systems on slopes require careful installation techniques to ensure optimal performance, including using racking systems with adequate tilt and spacing to minimize shading, and ensuring that the ground is clear of debris to maximize reflected light.
Optimizing Racking Systems for Slopes
When installing bifacial solar systems on slopes, it’s essential to use racking systems that can accommodate the unique challenges of these environments. Racking systems with adjustable tilt and spacing can help minimize shading between modules and ensure that the entire surface of the modules is exposed to sunlight. A recommended tilt angle for bifacial panels on slopes is between 20° and 30°, depending on the slope’s angle and the local solar irradiance. For example, on a 30° slope, a 25° tilt angle can be used to maximize energy production. Additionally, racking systems with adjustable vertical and horizontal offset can help ensure that the ground is clear of debris and modules are not obstructed by shadows.
Ensuring Ground Clearance and Debris Removal
To maximize reflected light and prevent shading, it’s crucial to clear the ground of debris and ensure that the area beneath the modules is clean and free of obstructions. This can be achieved through regular maintenance, including removing leaves, branches, and other debris that may accumulate on the ground. A recommended ground clearance of 1-2 meters around the racking system is essential to prevent shading and ensure optimal performance. Additionally, using racking systems with a smooth, flat surface can help prevent debris from accumulating and reduce maintenance costs.
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