An energy-harvesting building structure has multiple levels, a vertical shaft (central vortex tower] to direct wind upward toward an outlet at the top, and multiple wind powered turbines in the shaft. Wind collection areas on multiple levels are exposed to multiple directions. Wind vanes pivot into a backstopped position for redirecting wind to spiral inward toward the shaft. Wind twisters receive and further redirect wind inward and upward into the shaft to feed an air vortex driving the turbines at different levels. Two concentric stages of wind vanes may be included within wind collection areas, with the inner stage vanes having a surface which deforms in one direction but not the other. The building can include occupancy zones between wind collection levels. Heated air can be released into the bottom of the shaft to feed the vortex. At a top level, another wind turbine can draw wind up the shaft.

A vertical-axis renewable-power generator is an apparatus that is used to efficiently generate power in various weather conditions using renewable energy sources. The apparatus includes a vertically-oriented foil and a fluid turbine. The foil is designed to generate areas of relative high fluid velocity and low pressure on one side and relative lower fluid velocity and higher pressure on the opposite side. The foil is also self-directing so that the foil can follow the direction of the fluid flow. The fluid turbine is integrated into the foil so that the fluid turbine can be rotated by the high-speed fluid flow. The rotation of the fluid turbine can be used to generate electricity. The apparatus conforms to the Bernoulli's principle that is proven to increase the speed of the fluid flow over the foil, which is used to increase the speed of the fluid flow impacting the fluid turbine.

A vertical-axis wind turbine (VAWT) comprising a plurality of convex blades axially-rotating about a vertical axis. A wind shield rotating axially around the blades shields the blades facing convexly into the wind on the windward side of the turbine, the shield adapted to redirect wind moving against the shield to a high pressure zone on the concave side of the turbine blades. The radial distance between blades may vary along the chord length of the shield.

A system for generating power from wind and/or solar energy. The system comprises an array of rotors exposed and configured to capture wind power. The array of rotors is installed or set in a rotor panel having members that carries each of rotor of the array of rotors in a freewheeling state. The system further comprises a generator connected to a subset of the rotors of the array of rotors. The generator is configured to generate electric power from the subset of the rotors when the rotors rotate at a speed exceeding a threshold rotational speed. The system further comprises a converter connected to an output of the generator. The converter is configured to convert the electric power into another electric power suitable for transmission to and consumption by an electric consumer.

Disclosed is an air concentration tower for a vertical axis wind turbine. The air concentration tower has a polygonal outer perimeter, a pivot located at each vertex of the polygonal outer perimeter, and an inwardly-positioned rudder blade operatively connected at each pivot. Each inwardly-positioned rudder blade has a first wind-neutral position, and is pivotable through a plurality of angles that adjust based on an incoming wind direction, such that the incoming wind is channeled to the vertical axis wind turbine, which is located approximately at a center area of the polygonal outer perimeter. The air concentration tower is designed to provide higher wind speed to the vertical axis wind turbine than the surrounding ambient air.

A vertical axis wind turbine having a platform and a roof forming a housing for a vertical axis rotor and a stator. Stator vanes extend between the platform and the roof. The stator vanes and guiding surfaces on the platform and the roof define inlets and airflow paths for guiding wind into the inner chamber of the housing, where the wind powers a vertical axis rotor that is rotatably supported on the platform. The stator vanes are segmented with the trailing edges dynamically adjusting the diameter of the inner chamber in response to changing wind and rotor speed conditions. A shaft extending from the rotor can be connected to a generator connected to a power grid. The roof can support a solar panel connected to the power grid.

A wind powered generator comprising; a mast having a plurality of tower outlets positioned along on a low pressure portion of a length of the mast; one or more inlets positioned on a high pressure portion of the mast; an internal fluid flow path between the inlet and the tower outlets; a turbine in the fluid flow path; wherein the inlet and tower outlets are arranged such that wind creates air flow through the fluid flow path for motivating a turbine.

Disclosed herein is a turbine system comprising a support structure, a turbine assembly and a guide vane assembly. The support structure defines a central hollow and has an outer portion and an inner portion forming the periphery of the central hollow. The turbine assembly is movably coupled to and configured to be supported from the inner portion of the support structure to enable rotational displacement thereof along the periphery of the central hollow and about the first axis. The guide vane assembly is coupled to the outer portion of the support structure for circumscribing the support structure, the guide vane assembly comprising a plurality of guide vanes positionable for guiding fluids impinging thereupon towards the turbine assembly to thereby rotationally displace the turbine assembly about the first axis.

Disclosed herein is a guide vane assembly including a rig structure configurable with a turbine and having an inner portion and an outer portion forming extremities thereof, a sail and an actuator assembly. The sail is coupled to the rig structure and shaped for presenting a trough to a flow of impinging fluid, the trough having a depth defined from the rig plane. The sail extends from the outer portion towards the inner portion of the rig structure to terminate at an inner edge whereat a vent is defined. The fluid impinging on the sail is concentrated at the trough and redirected towards the turbine from the vent.

The present invention concerns a device transforming the energy from fluid flows into mechanical and electrical energy. The sources of primary energy are wind for the wind turbine version, or hydraulic flows such as marine or river currents, waves and tides, etc. for the water or hydro turbine version.

The device consists of a fluid guidance system (1), a rotor comprising at least two regularly arranged blades (2), a protective structure (4), a structuring framework (6), a top box (5) and a bottom box (7).

The device will play the role not only of wind turbine/water turbine but also of noise barriers, wave barriers, safety barriers and wireless electrical charging systems along the transport networks.

This invention is intended for companies or organizations producing electricity and individuals wishing to produce electricity.