What is a bifacial solar module?

LONGi launched its mono-PERC modules in 2016, featuring integrated PERC technology on monocrystalline silicon and low light degradation, and its cell efficiency has increased from 21% to 24.06%. Bifacial modules collect solar energy from both the front and back side of the module, increasing the total power output per module.

What are bifacial PV modules?

Bifacial modules are one of the most popular topics in the field of PV module advancements. It is a simple step away from the traditional reflective backsheet and replacing it with a transparent layer, allowing light to enter the backside of the module.

Why are bifacial photovoltaic cells becoming more popular?

Bifacial photovoltaic cells, modules, and systems are rapidly overtaking the market share of monofacial PV technologies. This is happening due to new cell designs that have replaced opaque, monolithic back surface foil contacts with isolated contacts, which allow light to reach the cell from the rear side.

What are bifacial modules?

Bifacial modules also have an additional characteristic, bifaciality, which is the ratio of rear power to front power. P-PERC cells have a bifaciality of 70% while HJT boasts over 90% bifaciality. Bifacial models such as the HJT 72 cell design from Sunpreme has a 390 W power rating and bifaciality of 95%.