NOVELTY - The photovoltaic module comprises a panel (1) comprising a string of connected photovoltaic cells, and a layer of encapsulation material placed for covering a light-incident side of the panel, where the encapsulation material comprises a transparent composite material including a fiber-reinforced thermoplastic polymer. The fiber comprises a glass fiber web, sheet or mat. The thermoplastic polymer has a glass transition temperature of 50-200 degrees C. The layer of encapsulation material has a light transmission of 300 nm of 80%, and exhibits luminescent down-shifting and down-conversion.    USE - Used as a photovoltaic module.    ADVANTAGE - The photovoltaic module can be easily manufactured in single step with good mechanical strength, reduced weight and excellent moisture, scratch and mechanical impact resistance and without environmental pollutions.    DETAILED DESCRIPTION - The photovoltaic module comprises a panel (1) comprising a string of connected photovoltaic cells, and a layer of encapsulation material placed for covering a light-incident side of the panel, where the encapsulation material comprises a transparent composite material including a fiber-reinforced thermoplastic polymer. The fiber comprises a glass fiber web, sheet or mat. The thermoplastic polymer has a glass transition temperature of 50-200 degrees C. The layer of encapsulation material has a light transmission of 300 nm of 80%, and exhibits luminescent down-shifting and down-conversion. The total thickness of the layer of encapsulation material is 0.5-3 mm. The side of the panel opposite to the light-incident side is covered with the layer of encapsulation material. The transparent composite material has a content of fiber reinforcement of 40-60 vol.%. The layer of encapsulation material comprises convex lens configurations arranged for converging incident light towards the photovoltaic cells in the panel. An INDEPENDENT CLAIM is included for preparing a photovoltaic module.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a photovoltaic module.    Photovoltaic panel (1)    Back sheet (2)    Layer of ethylene vinylacetate (3)    Glass sheet (4)    Aluminum frame. (5)