NOVELTY - The solar power system comprises a solar energy receiving solar collector (102), a reflective secondary optical element having sheets, a photovoltaic cell (106) for receiving the reflected energy from the exit aperture, and a platform having a first degree of freedom. The sheets are arranged to form a hollow structure having interior and exterior surfaces and entry and exit apertures such that a portion of interior of the hollow structure is reflective. The hollow structure is positioned to receive energy from the solar collector through the entry aperture.    USE - Used as the solar power system.    ADVANTAGE - The solar power system is inexpensive and compact, improves the overall acceptance angle of energy arriving at the collector, and avoids cracking and shading of the solar collector during its operation.    DETAILED DESCRIPTION - The solar power system comprises a solar energy receiving solar collector (102), a reflective secondary optical element having sheets, a photovoltaic cell (106) for receiving the reflected energy from the exit aperture, and a platform having a first degree of freedom. The sheets are arranged to form a hollow structure having interior and exterior surfaces and entry and exit apertures such that a portion of interior of the hollow structure is reflective. The hollow structure is positioned to receive energy from the solar collector through the entry aperture, to reflect the energy from the interior surface of the hollow structure, and to output the reflected energy through the exit aperture. The energy from the solar collector is reflected and directed through the exit aperture to the cell by the optical element. The sheet is flat and curved in one dimension. The sheet has a dielectric coating and a mitered edge, and is coated to increase reflectivity and to provide environmental protection. The structure comprises eight facets, a conical shape sheet, and a shield extending from the entry aperture, where the shield is arranged to block energy from reaching a sensitive component. The two sheets are joined using a tab. The interior surface of the structure does not include a bend. The exit aperture and an active area of the cell are spaced apart from each other. The reflective secondary optical element and the cell are enclosed in a box for protection against the elements. The box includes a window arranged to receive energy from the collector and transmit the energy to the optical element. The collector is enclosed in the box. The cell and the optic element avoid shading of the solar collector during its operation. The solar power system is mounted on the platform in a manner such that it has a second degree of freedom relative to the platform. An INDEPENDENT CLAIM is included for a method of receiving energy.    DESCRIPTION OF DRAWING(S) - The diagram shows a solar power system.    Collector (102)    Thermal structure (104)    Cell (106)    Solar lights. (120A, 120B, 120C, 120D)