Photoelectric conversion device, and its manufacturing method

A photovoltaic device that can prevent performance degradation caused by electrodeposition generated as a result of moisture penetration. In the photovoltaic device, two or more intermediate insulation portions 17 that electrically insulate solar cell unit cells 5 positioned adjacently in the X-direction are formed on the substrate center side of side insulation portions 16 so as to extend in the Y-direction in a parallel arrangement across the X-direction, a conductive portion 18 that electrically connects solar cell unit cells 5 positioned adjacently in the X-direction is provided in a position partway along each of the intermediate insulation portions 17, and the solar cell unit cells 5 where the conductive portion 18 is positioned are electrically insulated from a solar cell unit cell 5 positioned adjacently in the X-direction by another of the intermediate insulation portions 17 positioned distant from the conductive portion 18 in the X-direction.