Floating photovoltaic structure , intended to be positioned on a body of water (E), capable of moving in rotation about a horizontal axis (X), including: - a floating reflector-forming element , comprising: -- at least one sunlight-reflecting material , -- a hollow wall (P), comprising an inner surface (Pi) provided with said at least one reflective material , and an outer surface (Pe), opposite the inner surface (Pi), intended to be in contact with the body of water (E), said inner surface (Pi) having the shape of a quadratic surface extending parallel to the horizontal axis (X), and said hollow wall (P) comprising a first end (P1) and a second end (P2) that are separate from one another, between which said hollow wall (P) extends, - a transparent cover element , extending between the first end (P1) and the second end (P2) of said hollow wall (P) so as to define, together with said hollow wall (P), a closed internal volume (Vi) of the floating photovoltaic structure , - at least one bifacial photovoltaic module , capable of collecting sunlight on the two opposite front and rear faces thereof, which module is positioned relative to the inner surface (Pi) of said hollow wall (P) and to the transparent cover element such that it receives at least the sunlight passing through the transparent cover element and reflected by said at least one reflective material on at least one of the opposite faces of the photovoltaic module . - a floating reflector-forming element , comprising: -- at least one sunlight-reflecting material , -- a hollow wall (P), comprising an inner surface (Pi) provided with said at least one reflective material , and an outer surface (Pe), opposite the inner surface (Pi), intended to be in contact with the body of water (E), said inner surface (Pi) having the shape of a quadratic surface extending parallel to the horizontal axis (X), and said hollow wall (P) comprising a first end (P1) and a second end (P2) that are separate from one another, between which said hollow wall (P) extends, -- at least one sunlight-reflecting material , -- a hollow wall (P), comprising an inner surface (Pi) provided with said at least one reflective material , and an outer surface (Pe), opposite the inner surface (Pi), intended to be in contact with the body of water (E), said inner surface (Pi) having the shape of a quadratic surface extending parallel to the horizontal axis (X), and said hollow wall (P) comprising a first end (P1) and a second end (P2) that are separate from one another, between which said hollow wall (P) extends, - a transparent cover element , extending between the first end (P1) and the second end (P2) of said hollow wall (P) so as to define, together with said hollow wall (P), a closed internal volume (Vi) of the floating photovoltaic structure , - at least one bifacial photovoltaic module , capable of collecting sunlight on the two opposite front and rear faces thereof, which module is positioned relative to the inner surface (Pi) of said hollow wall (P) and to the transparent cover element such that it receives at least the sunlight passing through the transparent cover element and reflected by said at least one reflective material on at least one of the opposite faces of the photovoltaic module . <EOS>