NOVELTY - The device has an immobile and inert dome-shaped structure (5) including a set of concave-shaped air intake side openings (1), and an aerodynamic part (6) attached or molded into top part of the structure. An aerodynamic diffuser having a central turbine (2) is vertically or inclinedly placed at an entrance of the aerodynamic part. The turbine includes a set of variable pitch blades (4) arranged facing the openings, so that flow of air entering through the openings is directed to an outer area of the blades with higher angular momentum.    USE - Energy production device for use in a large power plant and urban environment to generate power from omnidirectional/biaxial flow of wind. Can also be used for generating power from ocean currents and waves.    ADVANTAGE - The variable pitch blades of the turbine are arranged facing the openings of the dome structure, so that flow of air entering through the openings is directed to an outer area of the blades with higher angular momentum, thus allowing a small-sized wind turbine with higher rotation speed to produce more energy. The structure utilizes optional solar panels combined for hybrid power generation. The diameter of the central turbine is smaller than standard turbine, thus presenting a lower cost of production of the turbine. The turbine is formed using high performance materials such as composites of carbon fiber/epoxy or magnesium alloys, thus reducing the risk of destruction of the turbine even at high rotational speeds. The turbine is aligned in the structure irrespective of the wind direction, thus allowing usage of secondary flows from the exhaust air-forced ventilation, aspiration and resulting heat of air-conditioning, and hence allowing operation of the turbine in co-generation, recovering some of the energy used to activate the device. The device is scalable to the available area and required needs, so that the device can be installed in buildings to be built, existing buildings and on hills/fields/sea.    DESCRIPTION OF DRAWING(S) - The drawing shows an isometric view of an energy production device.    Concave-shaped air intake side openings (1)    Central turbine (2)    Variable pitch blades (4)    Immobile and inert dome-shaped structure (5)    Aerodynamic part (6)