Abstract: A photovoltaic device for mounting on a container, includes at least two foldable carrier modules, which each have two support elements pivotable relative to one another about at least one pivot axis, a photovoltaic module being fastened to each support element, wherein the at least two foldable carrier modules are arranged adjacent to one another and with their pivot axes aligned with one another, and the support elements of adjacent carrier modules are connected to one another by means of first connecting supports, wherein the first connecting supports extend parallel to the at least one pivot axis and are fastened to the support elements at the end regions thereof remote from the pivot axis, and wherein second connecting supports are fastened to the support elements of the outermost of the at least two carrier modules, which second connecting supports are designed for coupling to a corner fitting of the container.