The bifacial solar cell efficiency increase can be as high as 27 with a solar tracking system that tilts solar cells continuously toward the sun during its trajectory across the sky.
Bifacial solar panels vs regular cells.
A bifacial solar panel is a solar panel that can collect energy from the front side and the rear side a normal monofacial panel only collects energy from one side.
When bifacial modules are installed on a highly reflective surface like a white tpo roof or on the ground with light colored stones some bifacial module manufacturers claim up to a 30 increase in production just from the extra power generated from the rear.
Bifacial solar panels are almost the same as normal ones except for a few but significant structural differences that make them unique and beneficial at the same time.
A solar panel system is an inter connected assembly often called an array of photovoltaic pv solar cells that 1 capture energy emanating from the sun in the form of photons.
The amount of electricity produced as measured in volts or watts varies according to the system and.
However the combination of plateauing peak efficiencies from standard screen.
This is because a black or opaque sheet covers their backsides.
The only major difference is the structure of the rear surface.
Sanyo energy corporation via solar electric supply historically bifacial solar cells were targeted towards bipv applications or in areas where much of the available solar energy is diffuse sunlight which has bounced off the ground and surrounding objects i e.
Whereas traditional opaque backsheeted panels are monofacial bifacial modules expose both the front and backside of the solar cells.
Bifacial modules produce solar power from both sides of the panel compared to traditional panels that are monofacial and therefore can produce up to 30 extra power 1.
And 2 transform that solar energy directly into electricity.
As you already know sunlight strikes only one side of traditional solar panels.
Extreme latitudes and snow prone regions.
What are bifacial solar panels.
A 2018 study by longi solar showed that bifacials can increase efficiency by 11 compared to a conventional solar panel system.
In a standard test a first white bifacial module with regular solar cells performed better than a regular bifacial module regarding its maximum power output.
The front side of the module even showed the same maximum as a monofacial module.
On the design front bifacial cells employ a standard front surface design that is very similar to the ones that are used in screen printed solar cells that are practically the industry standard.