Bifacial Solar Panels

A bifacial solar panel generates light from both sides and produces 10–25% more energy than a standard monofacial module of the same capacity. This is not a marketing exaggeration—the effect is real, but it depends on the type of surface and mounting height. The Altek catalog features bifacial modules ranging from 420 to 580+ W for ground-mounted solar power plants, flat roofs, and commercial installations.

Advantages of Bifacial Solar Panels

The rear side of a bifacial module captures reflected radiation—known as albedo. On white gravel or light-colored roof membranes, the reflectance rate reaches 60–80%, and the rear surface adds 10–25% to the generated energy. On dark asphalt or shingles, the gain will be minimal, around 3–5%.

Other advantages of bifacial solar panels include:

Tempered glass rear panel: Unlike film backsheets, it does not yellow and is completely moisture-proof.
Lower long-term degradation: The glass-on-glass enclosure provides superior protection for the solar cells.
Active in scattered light: The rear side captures diffuse radiation even on cloudy days.
Note: Frameless bifacial modules provide a higher albedo gain but require special clamping structures—keep this in mind when planning your installation setup.

Where Bifacial Solar Panels Are Used

The maximum effect of bifacial technology is achieved when there is a clearance of at least 0.5 meters between the panel and the surface. The higher the panel is mounted above the ground, the larger the area from which the rear side collects reflected light.

Optimal installation options:

Ground-mounted solar power plants with a clearance of 0.5+ m above light-colored gravel or membranes.
Flat roofs with white or light gray coatings.
Agrivoltaics: Vertical installations in agricultural fields where panels operate from both sides.
Solar carports and canopies with a reflective base.

For homes with dark roof tiles, bifacial photomodules will not provide a noticeable increase in output—in such cases, it is better to opt for conventional high-efficiency monocrystalline modules.

How to Choose Bifacial Photomodules for a Solar Power Plant

The bifaciality factor indicates how much energy the rear side produces compared to the front. The standard range is 70–80%. This is not a theoretical value; manufacturers are required to specify it in the technical datasheet along with the front-side power under STC (Standard Test Conditions). If these two values are missing, the module is most likely not a true bifacial one.

Key specifications to look for: front-side power (420–580+ W in modern models), mechanical load capacity of at least 2400 Pa, frame type (frameless models yield a higher albedo gain), and the temperature coefficient of power.

Buy Bifacial Solar Panels in Ukraine

At Altek.ua, you can purchase bifacial solar panels with delivery to Kyiv, Lviv, Dnipro, and throughout Ukraine. Prices are listed directly in our catalog. Our managers will calculate the real energy yield increase based on your specific location, surface type, and installation height. To place an order, fill out the form or call us directly.

JinkoSolar bifacial solar panels