NOVELTY - The floating power station has coaxial rolls (110,120) that are partially submerged in water, such that flow of water incoming to a submerged portion of rolls enables rotation of rolls along common horizontal axis of rotation (130). The rolls are provided with total design displacement for submersion from 10-40% of volume of rolls. An electric power generator (150) is connected with axis of rotation through multiplying gear, and center of gravity of power generator is below axis of rotation. A tow bar is connected to a handle for affixing anchoring lines or chains.    USE - Floating power station installed in narrow, shallow and twisted water beds, for transforming kinetic energy of flowing water into mechanical energy.    ADVANTAGE - The tow bar is mounted at the right angle to the reaction arm of the generator mounted below the axis, so that the construction of floating power station is simplified, and manufacturing cost can be reduced while increasing the efficiency. The floating water power station is of small size and the construction can be performed with high efficiency and reliability of operation, so that the power station can be easily mounted and demounted even at narrow, shallow and twisted water beds, such as natural water streams with a minimum interference with nature and minimum hazards to the water fauna. The working rolls are set with positive displacement, so that the power station is allowed to freely operate on water surface. The generator is positioned in between the two working rolls, so that mounting and servicing accessibility to the generator and the multiplying gear can be easier. The power stations can be connected in series and form a construction which freely flows on water, and the shape of power station is adapted to flow of water. Since the generator is fixed together with the multiplying gear below the axis and at the right angle to the anchoring arm, the weight functions as a reaction arm which effectively compensates the resistance of transmission of torque of the axis to the generator without additional fixing constructions.    DESCRIPTION OF DRAWING(S) - The drawing shows a side perspective view of floating power station.    Coaxial rolls (110,120)    Horizontal axis of rotation (130)    Blade (140)    Electric power generator (150)