Introduction of Bifacial solar panels
What are bifacial solar panels ?
Bifacial solar panels are made of bifacial mono solar cells and double glasses.The silicon bifacial solar cells with both sides receiving solar radiation can generate electricity.Compare with monofacial solar panels,you can get 20% extra electricity from rear side of bifacial solar panels.
Bifacial solar modules come in many designs.Some are framed while others are framesless.Some are dula-glass,and others use transparent backsheet.Most use monocrystalline solar cells.True bifacial solar modules have contacts/busbars on the the front and back sides of their solar cells.
Features of bifacial solar panels.
Both the front and the back can receive optical power generation. The conversion efficiency of the back side is 60% - 90% of that of the front side. The power generated by the integrated system is about 4% - 30% higher than that of the traditional monofacial solar module.
According to data obtained by the outdoor demonstration base of the bifacial solar module, when the back of the corresponding bifacial solar module is grass, sand, cement ground and the ground is painted with white paint, the power generation gains on the back are 10%, 12%, 13% and 32% respectively.
Toughened glass can be used as protective materials on the front and back, with good lighting and weather resistance, high reliability, more diversified and creative application scenarios.
There are various installation methods, which can be vertical and inclined, resulting in many new utilization methods, such as greenhouse, highway fence, sunshine room, etc.
Compared with monofacial solar modules, due to two sides of bifacial solar panels can generate electricity, the surface of components is not easy to snow in snowy days, and the high reflection brought by the snow on the ground makes the power generation gain of components higher.
However, when using the bifacial photovoltaic module, we need to pay special attention to its installation mode, the selection of diodes, the selection of inverters, and the reliability problems such as thermal spots caused by mismatch.
