Abstract: A solar concentrator can include at least one optical element for concentrating incident light, a receiver assembly comprising a base plate comprising a first conductive layer and second conductive layer, wherein the first conductive layer and second conductive layer are characterized by a voltage differential when exposed to light, and a plurality of photovoltaic cells mounted to the base plate, each cell comprising a first terminal connected to the first conductive layer and a second terminal connected to the second conductive layer, a frame; step-up voltage means, electrically connected to the receiver assembly, for increasing said voltage differential, an electrical circuit for conducting current generated by the receiver assembly, the circuit comprising a first conductive member configured to conduct electricity between the first conductive layer and step-up voltage means and a second conductive member configured to conduct electricity between the second conductive layer and step-up voltage means.