NOVELTY - A concentrated photovoltaic solar collector comprises a housing having an upper opening and a lower opening, where the lower opening is narrower than the upper opening; a solar cell positioned at the lower opening of the housing; a primary optical element positioned proximate to the upper opening of the housing; and a secondary optical element positioned inside the housing and proximate to the lower opening. The primary and secondary optical elements are shaped, dimensioned and positioned to direct and concentrate light source rays into the housing and onto the solar cell.    USE - The concentrated photovoltaic solar collector is used in a concentrated photovoltaic solar collector system (claimed).    ADVANTAGE - The system compromises a photovoltaic receiver assembly that produces highly concentrated solar energy, resulting in efficient energy conversion that requires fewer photovoltaic receivers than an arrangement that lacks such high concentration levels.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are:    (1) a concentrated photovoltaic solar collector system comprising (i) at least one concentrated photovoltaic receiver assembly, the concentrated photovoltaic receiver assembly comprising the solar collector above; a thermal conversion device in thermal communication with the solar cell; and a cooling unit in thermal communication with the thermal conversion device and/or the solar cell; and (ii) a sun tracking system that provides support and movement to at least one concentrated photovoltaic receiver assembly; and    (2) a sun tracking system comprising a base; a platform adapted to receive the at least one concentrated photovoltaic receiver assembly; and linear actuators movably connecting the platform to the base; where the linear actuators extend and retract to tilt the platform.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a concentrated photovoltaic and thermal system.    Thermal system (1)    Photovoltaic receiver assembly (3)    Tracking system (7)    Sun tracking system platform (59)    Base (61)