Abstract: A concentrator photovoltaic module (1) according to an embodiment includes a concentrating lens (50) configured to concentrate sunlight (Ls), a photovoltaic cell element (11) configured to convert the concentrated sunlight (Ls) into electricity, a receiver baseboard (20) on which the photovoltaic cell element (11) is mounted, a heat sink (60) configured to dissipate heat coming from the receiver baseboard (20), a module plate (70) to which the heat sink (60) is attached, and an opening (70w) that is formed in the module plate (70) and in which the photovoltaic cell element (11) and the receiver baseboard (20) are provided. The receiver baseboard (20) is fastened to the heat sink (60), and the heat sink (60) is fastened to the module plate (70) around the opening (70w).