NOVELTY - A flexible photovoltaic panel (1) comprises: a set of photovoltaic cells (2) made of crystalline silicon; at least one encapsulating layer (3) of thermoplastic material adapted to contain in it the photovoltaic cells; at least one front layer (4, 5) of flexible plastic material joined to and superimposed on the encapsulating layer on a first surface; and at least one back layer (6) of flexible plastic material joined to and superimposed on the encapsulating layer on a second surface.    USE - The flexible photovoltaic panel is useful for converting solar energy into electrical energy.    ADVANTAGE - The flexible photovoltaic panel is safe, and simultaneously provides mechanical strength, durability, electrical insulation and moisture protection.    DETAILED DESCRIPTION - A flexible photovoltaic panel (1) comprises: a set of photovoltaic cells (2) made of crystalline silicon; at least one encapsulating layer (3) of thermoplastic material adapted to contain in it the photovoltaic cells, the encapsulating layer being formed by first and second layers (3a, 3b) arranged on opposite sides of the set of photovoltaic cells and melted around the photovoltaic cells; at least one front layer (4, 5) of flexible plastic material joined to and superimposed on the encapsulating layer on a first surface, the front layer being exposed to sunlight during use, and being at least partly made of ultraviolet-resistant material; and at least one back layer (6) of flexible plastic material joined to and superimposed on the encapsulating layer on a second surface, opposite to the first surface; where the at least one encapsulating layer is made of thermoplastic olefin having a low water vapor transmission rate, the at least one front layer has a thickness in the range of 100-600 mu m, at least one part, in contact with the first surface of the encapsulating layer, being made of polyethylene terephthalate, and the at least one back layer is at least partly made of polyethylene terephthalate and has a thickness in the range of 100-600 mu m.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a flexible photovoltaic panel.    Flexible photovoltaic panel (1)    Photovoltaic cells (2)    Encapsulating layer (3)    Front layer (4, 5)    Back layer (6)