New method to calculate solar irradiation on rear side of bifacial panels
Researchers have announced a new technique that is a modified version of the isotropic diffuse model.
The scientists said that the technique can be applied to any kind of PV project or site conditions, without the need for high computational power.
They started to modify the model by treating the rear side as the front side. They did this by taking the complementary angle of the tilt angle as the real tilt angle.
The second modification involved altering the ratio of beam irradiation on the rear side of the bifacial panels.
The researchers said the difference between irradiation on the bottom, middle, and top parts of the panel’s rear side was crucial in the modeling approach. The model was tested via two different statistical models – the mean bias error and the root mean square error.
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