Provided is a hydro farm having two or more energy generating devices having movable vanes that can automatically retract when not in the flow of water and re-deploy when entering the flow of water to generate usable electrical and/or mechanical energy from the energy potential of flowing water. The hydro farm can supply usable electricity or mechanical energy from slow but steadily flowing bodies of water. The hydro farm can also be used to charge portable energy storage structures, such as trailers, that can be delivered to an area remote from the hydro farm via truck or other transportation modes.

The invention relates to a renewable energy power generating device for converting wind and/or water-flow energy into useable electrical power. The power generating device includes a support structure (112 A) rotatable about a first axis of rotation (C), a plurality of aerofoil blades rotatably mounted on the support structure (112 A) and free to rotate relative thereto about a second axes of rotation (Q) substantially parallel to and radially spaced from the first axis of rotation (C), and a means (162, 166, 168) for actuating the aerofoil blades (114) between first (114 A) and second (114 B) reflexed camber aerofoil section conditions such that the aerofoil blades (114) are freely rotatable to automatically set an angle of attack relative to a fluid flow direction (D) thereby to generate a lift force thereover and transmitting a torque to the support structure (112 A) to drive it through a repeating 360 degree rotary cycle.

A run-of-the-river hydroelectric generating plant is disclosed, in which river water is diverted downstream, used in the hydroelectric generation process, and sent back to the river. A high-mass, large diameter hydro rotor for hydroelectric power generation is disclosed. A large diameter circular horizontal water flow, the desired water flow regime, is created to float and rotate the high-mass hydro rotor, which is coupled to a turbine shaft. Extremely high torque and angular momentum is provided for conversion into extremely high energy output. The desired water flow regime can be augmented with different configurations of penstocks, intake channels, and discharge channels.

A turbomachine, comprising a housing, at least two blade wheels rotatably accommodated by the housing, at least two rotatably arranged blades, which are evenly distributed along a circle of the at least two blade wheels and mounted with an axle parallel to the axis of the corresponding blade wheel. According to the invention, each blade axle is connected to an adjusting element, which can be displaced relative to the shaft of the second blade wheel via a four bar link, which lies in a plane perpendicular to the blade axle and consists mainly of a square arm that is fixed to the axle of the blades, wherein a square arm is articulated to the bottom of the blade wheel, whereas the other end is connected to the end of the first square arm via a connecting axle.

A system comprising a tunnel implement for immersion in a moving mass. Energy from the moving mass passing through said tunnel implement is converted to rotational force. A collector device is provided having open and collapsed states, wherein the open state resists the moving mass. A rotational converting device converts the rotational force to constant singular direction. An input shaft is turned bidirectionally by the rotational force and two gears driven by the input shaft in opposite rotational directions, the gears separately attached to idler gears causing output gears attached to the idler gears to engage an output shaft in a same rotational direction. A bidirectional drive motor device drives a pulley device in a predetermined direction. A sensor device senses the position of the collector device. A trigger device is configured to activate said sensor device to indicate the collector device position and state, whether opened or collapsed.

An apparatus for exchanging kinetic energy between a fluid and a structure moveable relative to the fluid and connected to the apparatus, including a channel enclosed by a channel wall connected with the structure, and adapted to guide the fluid, at least four identical blades moveable within the channel and being connected to an energy converter coupled with the structure.

A system comprising a tunnel implement for immersion in a moving mass. Energy from the moving mass passing through said tunnel implement is converted to rotational force. A collector device is provided having open and collapsed states, wherein the open state resists the moving mass. A rotational converting device converts the rotational force to constant singular direction. An input shaft is turned bidirectionally by the rotational force and two gears driven by the input shaft in opposite rotational directions, the gears separately attached to idler gears causing output gears attached to the idler gears to engage an output shaft in a same rotational direction. A bidirectional drive motor device drives a pulley device in a predetermined direction. A sensor device senses the position of the collector device. A trigger device is configured to activate said sensor device to indicate the collector device position and state, whether opened or collapsed.

A system is provided comprising a tunnel for immersion in a moving mass. Energy from the mass passing through said tunnel converts to rotational force. An energy collector is provided having open and collapsed states, the open state resisting the mass. Bidirectional converter systems convert said rotational force to constant singular direction. A mechanical converter comprises an input shaft turned bidirectionally by said rotational force and two gears driven by the input shaft in opposite rotational directions, the gears separately attached to idler gears causing output gears attached to the idler gears to engage an output shaft in a same rotational direction. A hydraulic converter comprises a hydraulic pump turned bidirectionally by said rotational force. Check valves positioned between the pump and a hydraulic motor enable control of pressure and volume in one direction at the pump.

A system including at least one tunnel is configured for immersion in a moving mass. An energy collector is disposed in the at least one tunnel. The energy collector has at least an open state and a collapsed state where the collector in the open state collects at least an energy of at least a part of the moving mass passing through the at least one tunnel. Alternate activation of an actuator device joined to the energy collector and an activator joined to a weight implement alternately transitions the energy collector to the open and closed state. The alternate transition of the energy collector imparts a reciprocating motion of the energy collector and the weight implement. A cable system joins the actuators for transferring the reciprocating motion. A pulley system translates the reciprocating motion to a rotational force for driving rotational mechanisms.

A system includes at least two tunnels configured for immersion in a moving mass wherein a part of the moving mass passes through the tunnels. An energy collector is disposed in each of the tunnels. The energy collector has an open state and a collapsed state where the collector in the open state collects energy from the moving mass. An actuator joined to each of the energy collectors transitions the energy collector between the open state and the collapsed state. An actuator activator in each of the at least two tunnels activates the actuators where activation of the actuators results in a reciprocating motion of the energy collectors in the tunnels. A cable system joins the actuators for transferring the reciprocating motion. A pulley system translates the reciprocating motion to a rotational force wherein energy from the moving mass is transferred to the rotational force.