To provide a floating
wave energy converter (100) with high efficiency, which can also be manufactured and installed simply and cost-effectively, a floating
wave energy converter (100) for converting energy from a
wave motion of a fluid into electrical energy is provided, comprising a rotor unit (10) with a rotor shaft (11) and rotor wings (12) for generating a lift force (71) induced by the
wave motion and causing the rotor unit (10) to rotate, a generator (20) for generating electrical energy, wherein the generator (20) is coupled to the rotor shaft (11) of the rotor unit (10) for
torque transmission, and a receiving structure (30) for receiving the rotor unit (10) and the generator (20), wherein the
wave energy converter (100) has a control element (40) comprising at least one movable guide surface (41) for controlling the movement of the wave
energy converter (100) in the sea.