Characterization of Fresnel-Köhler Concentrator

Getting a lower energy cost has always been a challenge for concentrated photovoltaic. The FK concentrator enhances the performance (efficiency, acceptance angle and manufacturing tolerances) of the conventional CPV system based on a Fresnel primary stage and a secondary lens, while keeping its simplicity and potentially low-cost manufacturing. This work presents some measured performance features of a FK prototype that show its skills and potential for the achievement of competitive electricity generation costs. First prototype was built and characterized, and efficiency higher than 30% has been demonstrate