Photovoltaic module including a module laminate with several electrically interconnected partially or completely bifacial photovoltaic cells, which are embedded in an encapsulation material, wherein photovoltaic cells are adjacently disposed such that there is a cell gap between two respective mutually adjoining photovoltaic cells, wherein module laminate includes a front and rear-side surfaces which are opposite front-side surface; module frame, which encircles module laminate; module rear-wall disposed at distance from rear-side surface of module laminate and fixed on module frame, which covers at least one portion of rear-side surface of module laminate; wherein at least one portion of module rear-wall which is facing rear-side surface of module laminate, forms a diffuse backside reflector; wherein diffuse backside reflector is disposed such that at least one portion of light which penetrates through at least one cell gap of several cell gaps, is reflected on rear-side surface of module laminate.