Solar collector having an array of photovoltaic cells oriented to receive reflected light

摘要: A solar collector ( 200 ) is provided having increased efficiency and reduced cost over conventional collectors. The includes an array 218 of substrates 202 A, 220 B) each a substantially planar surface with photovoltaic cell 208 formed thereon. Generally, the at least first second oriented angle (α) relative to other, direction propagation light received on substrate such that reflected from onto substrate, thereby increasing ). varies inversely between for angles 140° 20°. Preferably, surfaces are shaped one another form part concave inner polyhedron 242, 246 or geometric figure defined by three more sides.