title: Improving performances of Fresnel CPV systems: Fresnel-RXI Köhler concentrator.
abstract: The optical design presented here has been done in order to achieve superior optical performance in comparison with the state-of-the-art Fresnel CPV systems. The design consists of a Photovoltaic Concentrator (CPV) comprising a Fresnel lens (F) as a Primary Optical Element (POE) and a dielectric solid RXI as a Secondary Optical Element (SOE), both with free-form surfaces (i.e. neither rotational nor linearly symmetric). It is the first time the RXI-type geometry has been applied to a CPV secondary. This concentrator has ultra-high CAP value ready to accommodate more efficient cells eventually to be developed and used commercially in future.
authors.forename: Marina
authors.initials: M
authors.lastname: Buljan
authors.forename: Juan C
authors.initials: JC
authors.lastname: Miñano
authors.forename: Pablo
authors.initials: P
authors.lastname: Benítez
authors.forename: Rubén
authors.initials: R
authors.lastname: Mohedano
authors.forename: Julio
authors.initials: J
authors.lastname: Chaves