A turbine assembly (200) for location in river or sea locations having unidirectional or bidirectional flow. The as- sembly (200) has: a support structure (226) and a first turbine system, supported by the support structure (226). The first turbine system has a centre of mass and being pivotally connected to the support structure (226) so that the first turbine system is rotatable, relative to the support structure, about a centre of rotation. The first turbine system includes a first flowing-water driveable turbine (216) for generating power from water flow. The first turbine (216) has an operational axis (322), and is designed for optimum power output when local water flow is aligned with the operational axis (322). The wherein the centre of rotation is spaced away from the centre of mass of the first turbine system in a direction parallel to the operational axis of the turbine. The turbine assembly is arranged to rotate due to local currents, thereby bringing the operational axis towards alignment with local water flow.

An energy storage system includes: a current flow energy recovery system configured to obtain energy from a moving water source; a storage tank configured to store fluid-based potential energy; and a pumping system configured to utilize the obtained energy to pump fluid from a fluid source into the storage tank, thus defining stored fluid.

A water flow power generation device includes a supporting frame, a carrying platform, a power generation assembly, a speed-increasing gear box and an impeller blade assembly, the impeller blade assembly includes a rotating shaft connected with the speed-increasing gear box and a plurality of impeller blades uniformly arranged at one end of the rotating shaft, the impeller blades are in contact with the water flow and are driven by the water flow to rotate. The carrying platform can be adjusted to move up and down, so that the contact area of the impeller blade assembly and the water flow is adjusted, water energy can be utilized to the maximum extent, and the service life of the impeller blade assembly is prolonged.

A movable-blade operation system for a hydraulic machine according to an embodiment includes an oil hydraulic cylinder installed within a rotational shaft, a bidirectional pump, a pump drive motor, a control unit, and an oil head installed in the hydraulic machine. The bidirectional pump selectively feeds pressurized hydraulic oil to one of a first cylinder chamber and a second cylinder chamber. The oil head couples the rotational shaft rotatably, and the hydraulic oil fed from the bidirectional pump to the first cylinder chamber and the second cylinder chamber flows through the oil head. The bidirectional pump, the pump drive motor, and the control unit are installed outside the hydraulic machine.

The present invention relates to the hydrokinetic chamber (22) comprising the propeller/vanes of the hydrokinetic turbine (23), the water collector (21) of the hydrokinetic chamber, a leak channel (26) of the hydrokinetic chamber, a flow control gate (28) for controlling the flow into the hydrokinetic chamber, and stop-logs (27) for the maintenance of the hydrokinetic chamber, the hydrokinetic chamber being associated with a chamber (24) for generating hydrokinetic energy, which houses a turbine-generator (23) and motor pumps, the chambers (22) and (24) being mounted in an energy-generating module for generating hybrid energy. The invention also relates to a method for generating energy and to a floating Hydroelectric Power Plant using the components of the present invention.

A rotor apparatus for extracting energy from bidirectional fluid flows comprises a first rotor (7) mounted for rotation about an axis of rotation (4) in a first direction of rotation, the first rotor (7) having at least one helical blade (2) with a pitch that decreases in a direction along the axis of rotation (4); and a second rotor (8) mounted for rotation about the same axis of rotation (4) in an opposite direction of rotation and having at least one helical blade (2) with a pitch that increases in the same direction along the axis of rotation (4), wherein fluid exiting the first rotor (7) is passed to the second rotor (8).

The double-regulated turbine comprises a spherical hub, adapted to rotate around a first rotation axis, and blades, which are each able to be swivelled relative to the hub around a second rotation axis, transversal to the first rotation axis, by respective coupling flanges that are mounted fixedly on the spherical hub and that include each an attachment surface for a corresponding blade. The attachment surface of the coupling flanges includes a flat portion.

The present invention relates to the hydrokinetic chamber (22) comprising the propeller/vanes of the hydrokinetic turbine (23), the water collector (21) of the hydrokinetic chamber, a leak channel (26) of the hydrokinetic chamber, a flow control gate (28) for controlling the flow into the hydrokinetic chamber, and stop-logs (27) for the maintenance of the hydrokinetic chamber, the hydrokinetic chamber being associated with a chamber (24) for generating hydrokinetic energy, which houses a turbine-generator (23) and motor pumps, the chambers (22) and (24) being mounted in an energy-generating module for generating hybrid energy. The invention also relates to a method for generating energy and to a floating Hydroelectric Power Plant using the components of the present invention.