NOVELTY - Solar module comprises: at least one transparent glass disc, plastic plate or plastic film at the front side; at least one single- or multi-layer film at the back side; at least one solar cell; and at least one layer of at least one transparent plastic, in which the solar cells are embedded, between the transparent glass disc, the plastic plate or the plastic film and the single- or multi-layer back side film. The composition of the back side film comprises e.g. an aromatic polycarbonate and/or -polyester carbonate, a rubber-containing graft polymer and at least one polymer additive.    USE - The single- or multi-layer film is useful as a back side film in the solar module (claimed).    ADVANTAGE - The solar module exhibits good weather resistance, preferably resistance in humid and warm climate, and also ensures protection against the mechanical damage due to the presence of polycarbonate blend films as the back side film, which has simple structure, and is obtained in a single extrusion- or co-extrusion step.    DETAILED DESCRIPTION - Solar module comprises: at least one transparent glass disc, plastic plate or plastic film at the front side; at least one single- or multi-layer film at the back side; at least one solar cell; and at least one layer of at least one transparent plastic, in which the solar cells are embedded, between the transparent glass disc, the plastic plate or the plastic film and the single- or multi-layer back side film. The composition of the single- or multi-layer film at the back side of at least one layer comprises (in parts by wt.): (a) an aromatic polycarbonate and/or an aromatic polyester carbonate (30-85 based on the sum of the components); (b) a rubber-containing graft polymer (7-70 based on the sum of components); (c) a rubber-free vinyl monomer-based polymer or copolymer or an aromatic polyester (0-60 based on the sum of the components), where the sum of the components is made up to 100 parts by wt.; and optionally (d) at least one polymer additive (0-30 based on the sum of the components). An INDEPENDENT CLAIM is also included for producing the solar module comprising producing a layer arrangement of the transparent glass disc, plastic plate or plastic film for the front side, at least a film of the transparent plastic, the solar cells, at least one additional film of the transparent plastic, and the single- or multi-layer film for the back side, and then laminating.