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 (15, 15'), 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 (15, 15') 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 (15, 15') is composed of segments (17, 17') 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 (17, 17') 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 (17, 17') 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 (15, 15'), 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 (15, 15') is composed of segments (17, 17') 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 (17, 17') 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 (17, 17') 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.