Abstract: Disclosed is a solar concentrator assembly (100) having a non-imaging dish concentrator (NIDC) (110) which consists of a plurality of flat facets mirrors (160) arranged in such a way that all the mirror images are superimposed to form reasonably uniform irradiance and either square or rectangular pattern of concentrated sunlight at a common receiver without sunlight blocking and shadowing on each other. The geometry of the NIDC (110) is determined using a special computational method. A plurality of secondary concentrators (120) formed by an array of crossed compound parabolic concentrators is used to further focus the concentrated sunlight by the NIDC (110) onto active area of solar cells (230) of the concentrator photovoltaic receiver (170). The invention maximizes the absorption of concentrated sunlight for the electric power generation system.

Abstract: The present invention provides a solar concentrator assembly comprising a non-imaging dish concentrator and a photovoltaic receiver for the application of concentrator photovoltaic system that provides uniform solar flux, matches the square or rectangular solar images to the square or rectangular dimension of the photovoltaic receiver and produces high solar concentration ratio. The present invention also provides a solar concentrator assembly that is cost effective and has simpler mechanical structure.