NOVELTY - The module (1) has an intermediate layer (30), which has a transparency of at least 90% for infrared light between 780 and 1200 nanometers (nm) and an interference filter (40) composed of dielectric layers designed to transmit at least 75% of total incident solar infrared light between 780 and 1200 nm. The filter reflects and diffuses incident visible solar light such that perceived color of reflected and diffused visible light by any observer positioned anywhere to the incident light side of module and looking towards the front element of module defines predetermined tristimulus value.    USE - Solar photovoltaic module for use in buildings.    ADVANTAGE - The interference filter is designed to produce a very strong reflection and diffusion of the incident visible solar light and at the same time to possess a high transmission factor for near infrared light between 780nm and 1200nm. All visible light is reflected by the interference filter so that no visible light reaches the solar photovoltaic element. The solar module appears attractive to render an aesthetic appearance for the integration of photovoltaic elements in buildings.    DETAILED DESCRIPTION - The filter is configured to reflect and diffuse incident visible solar light such that the perceived color of reflected and diffused visible light by any observer positioned anywhere to the incident light side of solar photovoltaic module and looking towards the front element of photovoltaic module is defined by a Y10 tristimulus value not lower than 50, and preferably higher than 70, defined by an x value of 0.20 to 0.45 and a y value of 0.20 to 0.45 and preferably defined by an x value of 0.29 to 0.36 and a y value of 0.31 to 0.36, in a chromaticity diagram of a CIE 1964 Yxy color system using a white light source measured with a D65 light source with a 10-degree angular field.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic cross-sectional view of a solar photovoltaic module.    Solar photovoltaic module (1)    Solar photovoltaic element (10)    Optical layer (20)    Intermediate layer (30)    Interference filter (40)