Are There Specific Regions That Benefit More from Bifacial Panels?

Regions with High Diffuse Light Levels

Bifacial panels are particularly beneficial in regions with high levels of diffuse light. This includes tropical and subtropical areas near the equator, where cloud cover is frequent. For example, locations in Southeast Asia, such as Malaysia and Indonesia, receive an average of 4-5 hours of diffuse light per day, making them ideal for bifacial panel installation. In these regions, bifacial panels can increase energy output by up to 25% compared to traditional monofacial panels.

Bifacial Panel Efficiency and Tracking Systems

The efficiency of bifacial panels depends on several factors, including the tracking system used to orient the panels. A two-axis tracking system, which follows the sun’s movement in both the east-west and north-south directions, can increase energy output by up to 35%. This is particularly effective in regions with high levels of diffuse light, where the sun’s rays are more scattered and can be captured by bifacial panels. In areas with minimal diffuse light, such as deserts and mountainous regions, the benefits of bifacial panels are reduced.

System Design and Installation Considerations

When designing and installing a solar system with bifacial panels, several factors must be considered. These include the surface reflectivity of the ground or surrounding surfaces, which can affect the amount of light reflected back to the panels. A high-reflectivity surface, such as a white or light-colored roof, can increase energy output by up to 10%. Additionally, the installation height and angle of the panels must be optimized to maximize energy output. A general rule of thumb is to install bifacial panels at a height of 2-3 meters above the ground, with an angle of 20-30 degrees to the horizontal.