Solar module for photovoltaic energy generation, which comprises a frontsided transparent cover plate with an outer surface facing the external environment and an opposite inner surface , wherein according to alternatives i) and ii) i) an optical interference layer for reflecting light within a predefined wavelength range is arranged on the inner surface , wherein the inner surface and/or the outer surface has in each case at least one patterned region , wherein either the outer surface has at least one patterned region , or another optical interference layer for reflecting light within a specified is arranged on the outer surface , or ii) an optical interference layer for reflecting light within a predefined wavelength range is arranged on the inner surface , wherein the inner surface of the cover plate has at least one patterned region , and the outer surface has no patterned region, wherein no optical interference layer is arranged on the outer surface , wherein the patterned region has the following features: - perpendicular to the plane of the cover plate , a height profile having hills and valleys, wherein a mean height difference between the hills and valleys is at least 2 μm, - at least 50% of the patterned region is composed of segments that are inclined relative to the plane of the cover plate , wherein, with reference to the plane of the cover plate , at least 20% of the segments have an inclination angle in the range from greater than 0° to a maximum of 15°, and at least 30% of the segments have an inclination angle in the range from greater than 15° to a maximum of 45°, wherein - if the inner surface has at least one patterned region , the segments of the patterned region of the inner surface are in each case planar, and have a segment area of at least 1 μm 2 and a mean roughness of less than 15% of a layer thickness of the optical interference layer on the inner surface . i) an optical interference layer for reflecting light within a predefined wavelength range is arranged on the inner surface , wherein the inner surface and/or the outer surface has in each case at least one patterned region , wherein either the outer surface has at least one patterned region , or another optical interference layer for reflecting light within a specified is arranged on the outer surface , or ii) an optical interference layer for reflecting light within a predefined wavelength range is arranged on the inner surface , wherein the inner surface of the cover plate has at least one patterned region , and the outer surface has no patterned region, wherein no optical interference layer is arranged on the outer surface , - perpendicular to the plane of the cover plate , a height profile having hills and valleys, wherein a mean height difference between the hills and valleys is at least 2 μm, - at least 50% of the patterned region is composed of segments that are inclined relative to the plane of the cover plate , wherein, with reference to the plane of the cover plate , at least 20% of the segments have an inclination angle in the range from greater than 0° to a maximum of 15°, and at least 30% of the segments have an inclination angle in the range from greater than 15° to a maximum of 45°, wherein - if the inner surface has at least one patterned region , the segments of the patterned region of the inner surface are in each case planar, and have a segment area of at least 1 μm 2 and a mean roughness of less than 15% of a layer thickness of the optical interference layer on the inner surface . <EOS>