Bifacial Module

A bifacial module generates power from both faces — direct sunlight on the front and reflected light (albedo) on the rear. On elevated structures over reflective surfaces, bifacial panels yield up to 5–11% extra energy.

The gain depends on mounting: elevated RCC-roof structures over light-coloured surfaces deliver the most; flush tin-shed mounting delivers almost nothing. A credible proposal should state the assumed bifacial gain for your specific roof, not the datasheet maximum.

Part of the HUM Solar Glossary — 75+ plain-language definitions for India’s solar ecosystem, maintained as a neutral reference. Browse all terms →