A transparent protective member includes first main surface and a second main surface, and having a curved surface shape. Solar cell panels are attached to the second main surface of the transparent protective member. An amount member attaches the solar cell panels to the second main surface. A connection member electrically connects the solar cell panels each other. The first main surface serves as a light-receiving surface. Each of the panels comprises a solar cell string including solar cells electrically connected to each other, a transparent first resin base member provided on one side of the solar cell string beside the transparent protective member, a second resin base member on the opposite side of the solar cell string from the first resin base member, and a filler layer provided between the first resin base member and the second resin base member and in which the solar cell string is encapsulated.