The present invention disclosure describes a wind farm system and a method to improve the energy production from a wind farm comprising one or more wind guides for speeding up the wind through the wind turbine rotor and thereby improving the energy production from the wind turbine. One wind guide covering several wind turbines or several wind guides with a limited gap between them have been proven to significantly improve the efficiency of wind guides. One or more wind guides covering the wind turbines in the last row of a wind farm has likewise shown unexpected significant improvements. CFD calculations have shown more than 40% improvement in generated power from a wind farm system in some cases.

A wind turbine including a lower mount; a nacelle; a hub rotatably coupled to the nacelle and configured to rotate about a longitudinal axis of the hub; a generator housed within the nacelle and configured to convert kinetic energy of the hub to electricity; a plurality of pivotable blades coupled to the generator and configured to rotate with the hub, each pivotable blade of the plurality of pivotable blades configured to pivot about a longitudinal axis of the pivotable blade; and an annular shroud fixed to the lower mount and located radially outward of the plurality of pivotable blades, the annular shroud coupled to the nacelle by at least one support member that is inclined so as to extend frontward and radially outward from the nacelle to the annular shroud; wherein the lower mount is configured to passively rotate about a mast.

Electric generating assemblies wherein such assemblies are intended to be mounted on a vehicle, such that a front of a hollow funnel is directed to the front of the vehicle. As the vehicle moves forward, the funnel picks up wind which is passed through the funnel and turns a fan which generates electricity.

A fluid turbine has an annular-airfoil duct and passive, leading-edge flaps on the airfoil that enhance yaw stability and reduce extreme loads in excessive fluid-stream velocities when the turbine is in shutdown mode, or when it is parked or otherwise not producing power. Flaps retract and deploy passively to reduce loads by eliminating the lift over the airfoil, providing manageable loads in high-velocity flow at Up-0. The flaps are intended for use in extreme and unlikely events. Appropriate design and material selection mitigates the detrimental effects of dormancy.

A wind farm system and a method to improve the energy production from a wind farm comprising one or more wind guides for speeding up the wind through the wind turbine rotor and thereby improving the energy production from the wind turbine. One wind guide covering several wind turbines or several wind guides with a limited gap between them have been proven to significantly improve the efficiency of wind guides. One or more wind guides covering the wind turbines in the last row of a wind farm has likewise shown unexpected significant improvements. CFD calculations have shown more than 40% improvement in generated power from a wind farm system in some cases.

A fluid turbine has an annular-airfoil duct and passive, leading-edge flaps on the airfoil that enhance yaw stability and reduce extreme loads in excessive fluid-stream velocities when the turbine is in shutdown mode, or when it is parked or otherwise not producing power. Flaps retract and deploy passively to reduce loads by eliminating the lift over the airfoil, providing manageable loads in high-velocity flow at Up-0. The flaps are intended for use in extreme and unlikely events. Appropriate design and material selection mitigates the detrimental effects of dormancy.

An aerodynamic form mounted at the interface between a building's wall and roof having an aerodynamic form that intercepts oncoming wind and directs it over the edge of the roof as laminar flow directed toward a wind turbine mounted on or proximal to the roof. This directed airflow channeled toward the rotors of the one or more wind turbines increases power generation while reducing noise from turbulent flow.