A system utilizes conventional sail technology to greatly increase the wind energy captured at modest cost. The use of a large area collector for wind energy, such as a sail, allows the conversion of wind kinetic energy into pressure so as to be further converted into mechanical or electrical energy in a much smaller turbine than in the conventional wind mill configuration. The collector is characterized by a deployed condition and a furled condition. In the deployed condition, a plurality of flexible membranes of the collector are deployed over an entirety or a portion of a roof. In the furled condition, plurality of flexible membranes are furled.

A construction (1) defining a volume submerged in an air-stream (10), with at least one surface (6) against which the air current impinges, directing, acceleration and laminating an air-flow against the lateral (6) of the construction (6) having at least one wind-mill generator (2) attached to said lateral (6) in an area where there is still no separation of said laminar air-flow (11) form the construction (1). Faced with said generator (2), is arranged at least one plate (9), the wind generator (2) being positioned between said plate (9) and said portion of the lateral wall, determining a tunnel (14) with an air inlet and outlet of the air-stream impinging on the blades of the wind-mill generator (2). The inlet of the air-stream into said tunnel (14) directed towards the blades of the wind-mill generator is placed adjacent the largest section of the perimeter of said construction (1), perpendicular to the direction of incidence of the wind-stream.

Proposed is a wind turbine having a vertical axis rotor mounted in a fixed cylindrical housing provided with outwardly opening shutters. The rotor consists of a rotating core comprising core blades fastened between two circular bases and forming a Ugrinsky rotor, and an annular impeller configured for independent rotation about said core. The impeller comprises impeller blades fastened between two ring-shaped bases and forming a continuation of the core blades, wherein common inter-blade channels are formed which narrow toward the centre of the rotor. Also proposed are wind power stations based on the wind turbines described above, said turbines being mounted vertically one above the other to form a generating tower, or being mounted on a facade of a high-rise building. Technical result consists, in particular, in increasing the efficiency of the wind turbine and making it possible to incorporate wind power stations into an urban environment.

A system and method for improving efficiency of vertical axis wind turbines for all wind directions, comprising an inlet convergent section, a wind turbine section adjacent to exit of convergent section and an outlet divergent section. The system provides an air passage through the inlet section, the wind turbine and the outlet section, and allows for variation of the inlet and outlet depending on wind direction, in order to maximize efficiency harnessed within a time interval in accordance to wind direction and wind speed.

The goal of the invention is to maintain a constant supply of electrical energy with use of solar and wind power. According to the invention there is a generator and a first motor mounted on the shaft of the column, where said generator is connected, through a first relay and inverter with a power grid and the generator is also connected, through rectifier with a battery pack. Rotary guides, connected with second motors are covered with a layer with photovoltaic cells.

The invention relates to a continuous-flow energy installation, in particular a wind power installation, having an at least approximately drop-shaped housing, from the inlet opening of which to the outlet opening the flow channel delimited by the channel wall extends. The propeller is mounted rotatably about the longitudinal axis and fluid flowing through the flow channel, flows axially onto the propeller. The axial position of the propeller can be varied by means of the spacing adjustment drive. Alternatively or additionally the channel wall is variable. The length of the flow channel is, for example, adjustable by means of the length adjustment drive. These variation possibilities make it possible to adapt the energy generation by means of the generator to changed conditions of the fluid stream, in particular the wind.

A wind power generating rotor system for a wind turbine. The rotor system includes a rotor assembly having a rotor axis and a plurality of rotor blades structured and arranged for rotation around the rotor axis by wind passing the rotor blades thereby capturing kinetic energy from the wind. A diverter assembly is provided having a plurality of diverters structured and arranged at one or both of inside and outside a perimeter defined by rotation of the rotor blades thereby increasing the power of the rotor system.

An invention is presented which greatly improves the potential for individual home wind energy conversion. The system utilizes conventional sail technology to greatly increase the wind energy capture at modest cost. The use of a large area collector for wind energy, such as a sail, allows the conversion of wind kinetic energy into pressure to be further converted into mechanical or electrical energy in a much smaller turbine than in the conventional wind mill configuration. This technology encourages the distributed generation of green and renewable wind energy, complementing solar generation and the grid tie box, toward making the residential home energy neutral.

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 is a wind generator system particularly suitable for small wind applications that harnesses low velocity wind effectively. The wind generator system comprises a drive shaft; one or more retreating blades and one or more advancing blades attached to the drive shaft and extending radially outwardly therefrom; a generator assembly coupled to the drive shaft and effective for generating electrical power; and a energy storage system comprising a mechanical bellows.