Hybrid micro-scale CPV/PV architecture

A novel hybrid PV solar cell architecture is presented that integrates high-performance micro-optics-based CPV array technology with a 1-sun PV cell within a low-profile panel structure. The approach simultaneously captures the direct solar radiation components with arrayed high-efficiency CPV cells and the diffuse solar components with an underlying wide-area PV cell. Performance analyses predict that the hybrid approach will significantly enhance the average collected energy for the full range of diffuse/direct radiation patterns across the USA. Furthermore, cost analyses indicate that the hybrid concept may be beneficial for a wide range of locations. Preliminary out-door experimental evaluation of a micro-optical system for use in a hybrid architecture verified that a large proportion of the direct radiation component was concentrated onto emulated micro-PV cell regions while the photons collected in the 1-sun area would considerably boost the overall performance of such a CPV system.