Do bifacial solar panels work?

If you're considering ground-mounted solar, bifacial panels might perform better by capturing light reflected from the ground. Similarly, they work well on free-standing structures like pergolas, where there’s no obstruction behind the panels, allowing them to capture sunlight from both sides.

Are bifacial panels more energy efficient?

With more surface area available to absorb sunlight, bifacial panels are generally more efficient than traditional monofacial panels. For example, a study by solar panel manufacturer LONGi found that bifacial panels produced 11% more energy than standard panels as part of a ground-mounted installation.

Are bifacial solar panels suitable for rooftop installations?

Bifacial solar panels are not suitable for rooftop installations but may work well with residential ground-mounted solar systems. The ideal use case for bifacial solar panels is in commercial and utility-scale solar installations.

Are bifacial solar panels more expensive?

Despite their advantages, bifacial solar panels are often more expensive to install due to the additional equipment and labor involved. As a result, monofacial panels remain the more financially viable option for most installations, especially for residential projects where the benefits of bifacial panels are less pronounced.

What are bifacial panels?

Bifacial panels have a slim profile compared to monofacial panels. They often have minimal framing and are enclosed in a thin, transparent layer of either a dual-glass design or a clear back sheet. Mounting systems for bifacial panels are also designed differently to maximize energy capture from both sides.

Can bifacial panels be installed vertically?

Additionally, bifacial panels can be installed vertically to capture sunlight at two key points during the day: sunrise and sunset (this setup isn’t practical for monofacial panels, which rely solely on their front side for energy absorption and are typically installed horizontally to maximize exposure to the sun).