Bifacial Solar Panels
Bifacial Solar Panels
Bifacial solar panels are one of the newest technologies in the PV sector. Unlike the mono facial solar panels, they are equipped with solar cells on the front and the rear sides of the solar module that receives the incident solar rays on both of them to generate electricity. Bifacial solar panels are often more durable than conventional cells because both sides are more resistant to Ultraviolet rays (UV), and potential-induced degradation (PID) is reduced when the bifacial module is frameless. Balance of system (BOS) costs also become less when more power can be generated from bifacial modules in a smaller array area. , also have better low light performance and lower temperature coefficient. The bifacial solar cell efficiency can achieve more than 25% with the solar tracking system, mounting height, and albedo.
The main determinant among the previously mentioned is the albedo, Albedo is the term used to estimate the diffusion and also the reflection of the light by any object. Scientifically, Albedo is the measurement of the diffused and reflected solar radiation received from an astronomical body like our mother Earth. Albedo is unitless, scaling from 0 to 1 measured by albedometer.
Concluding from the definition, there is an obvious relation between the bifacial solar panels and the albedo. The albedo effect on the solar panels always remains, no matter where the panels are installed. when the reflectivity of the installation area is higher with Abledo value 1, the rare panels of the bifacial solar panels absorb the reflected rays from the installation area to generate greater additional power. It is the same in the case of the lower albedo value of the installation area but the additional power generated will be lower when compared to the higher albedo value area. By this, we can conclude that the Higher the albedo value, the greater is the power output of a bifacial solar panel. The simple equation below approves the high efficiency of the bifacial solar panels.
Here we can clarify the relation between the nature of the installation area and the output of our bifacial solar panel.
Total energy produced from bifacial solar panel = energy from the front side + energy from the rear side.
