NOVELTY - The plant has a displacement body (2) in which a working machine (10) e.g. electric power generator, desalinization plant of reverse osmosis and pump is installed. The machine is connected via a transfer box (9) e.g. gear box and an overrunning clutch (8) to a reel (3) with a rewinding mechanism (4). A cable (5) is wound on the reel, where the cable is connected to an anchor (6) to produce more power and to be used on crafts located in open sea. The anchor floats and dives, and is lowered to depth greater than wave length.    USE - Wave power plant for converting energy of a disturbed water surface into energy of an output shaft using deep-sea floating facilities found in open sea areas. Uses include but are not limited to rescue rafts and boats, floating data centers, yachts and floating drilling platforms.    ADVANTAGE - The anchor synchronously repeats vertical motion of the displacement body and carries out a threefold function and provides a stabilization of the displacement body in space, thus allowing the displacement body to press against the water's surface in a critical time of action of an incoming wave, and hence excluding the possibility of overturning the displacement body for optimizing work mechanisms of the plant while harvesting wave energy in offshore effectively. The plant can be used at great depths in the open sea for utilizing the energy of waves of any length such as up to 400 meters and height up to 25 meters. The working machine can be connected to the transfer box in an N-fold amount through a distribution box in order to match large tension force of the cable to an optimum angular momentum of the axle of the working machine and to provide improved efficiency for the extraction of energy.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a wave power plant.    Displacement body (2)    Reel (3)    Rewinding mechanism (4)    Cable (5)    Anchor (6)    Overrunning clutch (8)    Transfer box (9)    Working machine (10)