(EN) A device to utilize intrinsic energy of the water movements is disclosed. The device comprises a platform to support at least one large body secured with an outer shaft. The outer shaft is secured with said platform. A plurality of channels provided in the large body to accommodate at least one blade, adapted to move in up and down directions, in each of the channels. An energy accumulator is secured with an inner shaft below the large body to receive rotational movement from the large body and conveying the same to a gear box provided above the platform. A power generator provided to receive rotational movement from the gear box and generate electric power. Control means are provided to operate blade movement means. Support means are provided support the large body rotatably and to provide up and down movement to the large body.