High-efficiency photovoltaic modules with solar concentrators

The results of research and development of solar concentrator photovoltaic modules with an area of 0.5 m$^2$ based on Fresnel lenses with secondary solar concentrators in the form of inverted pyramids and multi-junction solar cells at the focus of Fresnel lenses are presented. The developed concentrator photovoltaic modules provide a high concentration ratio (up to 700X) and an optimal temperature regime for the operation of multi-junction solar cells. The photovoltaic modules are characterized by a high conversion efficiency over 32%, which matches the highest world level for such concentrator modules.