NOVELTY - The photovoltaic element for fixing on polytetrafluoroethylene coated web material useful for large buildings and architectural structures, comprises a photovoltaic foil (B), a first transparent adhesive layer (C) that is laminated on a first side of the photovoltaic foil, a second adhesive layer (D) that is laminated on a second side of the photovoltaic foil, and a supporting foil (H) that is fixed on the second adhesive layer. A transparent support layer (E) consisting of a material weldable with the web material is subjected on the first adhesive layer.    USE - Photovoltaic element for fixing on polytetrafluoroethylene coated web material useful for large buildings and architectural structures.    ADVANTAGE - The photovoltaic element is simple and mechanically stable and has good flexibility and optical appearance.    DETAILED DESCRIPTION - The photovoltaic element for fixing on polytetrafluoroethylene coated web material useful for large buildings and architectural structures, comprises a photovoltaic foil (B), a first transparent adhesive layer (C) that is laminated on a first side of the photovoltaic foil, a second adhesive layer (D) that is laminated on a second side of the photovoltaic foil, and a supporting foil (H) that is fixed on the second adhesive layer. A transparent support layer (E) consisting of a material weldable with the web material is subjected on the first adhesive layer and has a common protrusion for fixing on the web material. The supporting foil has a common protrusion corresponding to the protrusion of the support layer and consists of materials weldable with the web materials. The protrusion is connected with the web material over a thermal welding layer. The photovoltaic foil is equipped with electric connections, which are fixed only on an outer side, on an inner side or on the outer and inner side of the photovoltaic foil. The transparent support layer and the supporting foil consist of perfluoro ethylene-propylene copolymer.    DESCRIPTION OF DRAWING(S) - The figure shows a photovoltaic element.    Photovoltaic foil (B)    First transparent adhesive layer (C)    Second adhesive layer (D)    Support layer (E)    Supporting foil. (H)