Design of Novel Compound Fresnel Lens for High-Performance Photovoltaic Concentrator

Table 1

The main losses of this concentrator system, considering the normal incidence and divergence angle of solar.

The reason of losses	Losses	Transmission
Fresnel losses on the front surface of primary Fresnel lens	−3.94%	96.06%
Fresnel losses on the sawteeth surface of primary Fresnel lens	−5.24%	90.82%
Losses due to the drag angle of primary Fresnel lens' sawteeth	−4.50%	86.32%
Fresnel losses on the surface of secondary lens	−3.55%	82.77%
Total power efficiency on the surface of solar cell: 82.77%