Abstract: Several panels (5) having the same size and comprising a significant number of electrically interconnected photoelectric elements (2) are arranged side by side, separated from one another, in a compartmented folding pocket (1) open at one side and consisting of flexible insulating material. Each panel (5) is in electrical contact with connection strips (7, 12) incorporated in the material of the compartmented folding pocket (1), which extend along the longitudinal edges of the compartmented folding pocket (1) by means of solder strips (3, 4). The connection strips (7, 12) consist of a flexible metal fabric and form a series and/or parallel connection of the panels (5). Corresponding voltages at the associated currents may be tapped at contact elements (6, 6', 13, 14). At the same time, these elements mechanically hold in place the solder strips (3, 4) of the panels (5) with the connection strips (7, 12) and the material of the compartmented folding pocket (1).