TechnicalUp to date · Jan 15, 2026
Bifacial Gain
The additional energy produced by bifacial solar panels from light reflected onto their rear surface. Typical bifacial gain is 5-15% depending on ground reflectivity (albedo), mounting height, and tilt angle.
Why It Matters
Bifacial panels on white or light-colored surfaces (rooftop, gravel, snow) can produce significantly more energy for a small cost premium over standard monofacial panels.
Related Terms
Bifacial Solar Panel
A solar panel that generates electricity from both sides, capturing reflected light (albedo) on the rear face for 5-30% additional production depending on installation.
Module Efficiency
The percentage of sunlight that a solar panel converts into electricity. Modern panels range from 15-22% efficient.