BACKGROUND OF THE INVENTION [0001] 1.FIELD OF THE INVENTION [0002] This invention relates to a turbine wind energy electric current producing generator structure, and more particularly, a wind turbine generator assembly (device), mounted outside of the vane module (turbine head), either on a top portion, middle portion or a lower portion of the vane module (turbine head), using the movement of air in chaotic vertical mass motions driven by heating through the chimney/stack effect and extrinsic breeze to accommodate a generator structure and vane module (turbine head) for generating electrical energy. [0003] 2.DESCRIPTION OF THE PRIOR ART [0004] Wind-powered turbine ventilators are widely used for under-roof ventilation in domestic, commercial and industrial applications. Their popularity stems largely from a relatively modest purchase cost coupled with a substantial absence of any operating cost and ability to operate passively without regulation. The primary purpose of the turbine ventilator is to exhaust under-roof accumulations of hot air, either internally generated or as a result of sun loading on the roof. For that purpose, a precise quantity of air flow need not be maintained continuously but can instead be permitted to fluctuate within a wide range. [0005] These ventilators, commonly known as "whirlybirds", rotary ventilators, turbine ventilators or "turbo" ventilators can be armed with an electric generator mounted in an interior part of a turbine. The electric generator members are coupled inside the vane module (turbine head) and/or to the turbine sleeve member, with one or more shafts for operating the generator to generate electricity or an electric current or energy. [0006] For example, U.S. Pat. No. 4,379,972 to Sosa et al. discloses a typical turbine ventilator comprising a housing having a lower supporting base, and a rotatable member rotatably attached to the lower supporting base of the housing and coupled to a generator with one or more shafts for operating the generator to generate electricity or an electric current or energy. The shafts, coupled between the rotatable member and the generator are very long such that the generator is disposed outside the rotatable member of the turbine inside the attic space or roof chamber beneath the roof of the house. [0007] U.S Pat No. 6,798,082 to Chen discloses typical turbine ventilator comprising a turbine ventilator, a drive system, a transmission, a generator page 2 and a tower. The generator is disposed inside the turbine sleeve (turbine tower). [0008] Due to the large amounts of heat from the sun's rays during the summer time, the temperature in the attic space or roof chamber beneath the roof of the house rises rapidly as solar radiation is absorbed and can reach up to 7 0 * C [AU 2002301161A1 to Andrews]. Hence, devices mentioned in U.S. Pat. No. 4,379,972 to Sosa et al. and U.S Pat No. 6,798,082 to Chen, suffer a serious drawback. If the generator is disposed on the inner side of the turbine, either inside a turbine sleeve member or a roof-mounted air flow conduit, or in the void of the attic, it tends to heat up and sometimes to overheat. Such operating conditions are hazardous as overheating may cause damage to the generator circuit insulation, resulting in short-circuiting and fire. [0009] Devices mentioned in U.S. Pat. No. 4,379,972 to Sosa et al. and U.S Pat No. 6,798,082 to Chen, cannot be easily installed on to a wind turbine already mounted on building roof as it is necessary to dismantle the turbine and get access to the attic space or roof chamber beneath the roof of the house, which is not always possible. These devices require more installation and service time in comparison to the proposed invention, due to the difficulty in gaining access to the internals of the above mentioned devices. [00010] A wind generator employing the permanent movement of field magnets on rotors facing stator coils is disclosed in U.S. Pat. No. 6,800,955 to McDavid, Jr, as a fluid powered energy conversion device disposed in moving fluid for converting energy in the moving fluid into mechanical energy. It comprises a rigid cylindrical frame of toroidal baffles forming an upstream annular chamber and a downstream annular chamber, and a number of hinged louvers surrounding the vortex chambers. [00011] However, the device disclosed in U.S. Pat. No. 6,800,955 to McDavid, Jr. does not address the problem of ventilating the attic space or roof chamber beneath the roof of a house by extracting air from the roof chamber as conventional turbine roof ventilators do. It comprises a complicated structure that may not be easily manufactured or assembled to meet the need to ventilate the attic space or roof chamber beneath the roof of a house. It is not possible to utilize existing turbine ventilators by installing the above mentioned device on turbine ventilators already mounted on roofs. [00012] The present invention has arisen to mitigate and/or obviate the afore described disadvantages of conventional turbine ventilators. page 3 SUMMARY OF THE INVENTION [00013] In a view of the drawbacks of the aforementioned wind energy generators, a wind turbine generator assembly (device) for supplying electricity to a load is disclosed herein. [00014] It is the principal object of this invention to provide a wind turbine generator assembly (device) to supply electricity to a load, which will be unique, in that it will be employed to generate an electrical current by being assembled on an outer side (outside) of the wind turbine. [00015] An objective of the present invention is to provide a wind turbine generator assembly (device) for supplying electricity to a load, which can reduce the cost of generating electric power, encourage greater energy efficiency and reduce the utilization costs of already mounted wind turbines by setting up the present invention assembly on an outer side (outside) of the wind turbine, without the need to disassemble a given wind turbine or gain access to the attic space or roof chamber in order to install an electric generator inside or under a wind turbine. [00016] Another object of this invention is to provide a wind turbine generator assembly (device) for supplying electricity to a load, which will be coupled to a generator means, and a battery means will be used to store the current. [00017] Another object of this invention is to provide a wind turbine generator assembly (device) for supplying electricity to a load, which will be rooftop mounted, so as to operate at maximum efficiency. [00018] Another object of this invention is to provide a wind turbine generator assembly (device) for supplying electricity to a load, which will be adaptable for use on residential and nonresidential buildings roofs, trailer and car roofs, as well as for a farm electric generating plant. [00019] Other objects of the present invention are to provide a wind turbine generator assembly (device) for supplying electricity to a load, which is simple in design, inexpensive to manufacture and set up, rugged in construction, easy to use and efficient in operation. [00020] An even further object of this invention is to provide a wind turbine generator assembly (device) for supplying electricity to a load, which will be adaptable for use as an electric power plant when used in plurality, and which is economical and non-polluting to use. [00021] These, and other objects, will be readily evident upon study of the following specifications and the accompanying drawings. page 4 BRIEF DESCRIPTION OF THE DRAWINGS [00022] FIG. I is a plane view showing a conceptual embodiment of the wind turbine generator assembly (device) of this invention mounted around a wind turbine head with convex curvature turbine vanes.. [00023] FIG. 2 is a plane view showing a conceptual embodiment of the wind turbine generator assembly (device) of this invention mounted around a wind turbine head with linear-shaped turbine vanes. [00024] FIG. 3 is a plane view showing a conceptual embodiment of the wind turbine generator assembly (device) of this invention mounted around a wind turbine head with convex curvature turbine vanes. The wind turbine generator assembly (device) of this invention can have a plurality of rotor tiers (rows), each tier (row) corresponding to a plurality of stator tiers (rows). The stator coils can be connected in a series and circumferentially staggered either in a cyclical or alternate alignment for generating alternative currents, each of the groups having a corresponding specific phase. The wind turbine generator assembly (device) of this invention can have a plurality of vertical or horizontal section stator panels mounted on either a turbine sleeve member or on the roof-mounted air flow conduit. [00025] FIG.4 is a schematic view showing a conceptual embodiment of the wind turbine generator assembly (device). [00026] FIG.5 is a schematic view showing a further conceptual embodiment of the wind turbine generator assembly (device). [00027] FIG.6 is a schematic view showing a further conceptual embodiment of the wind turbine generator assembly (device). [00028] FIG. 7 is a schematic view showing a further conceptual embodiment of the wind turbine generator assembly (device). [00029] FIG.8 is a schematic view showing how the wind turbine generator assembly (device) is mechanically coupled to the turbine with the rectifier and electricity-storage unit. page 5 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [00030] The present invention can be more fully understood by reading the following detailed description of a preferred embodiment, with reference made to the accompanying drawings. [00031] As shown in FIG.1, FIG.2 and FIG.3 a wind turbine generator assembly (device) 1 for supplying electricity to a load, mounted outside of the vane module (turbine head) 2. The generator stator 3, comprising at least one coil 4 (shown on FIG.6, FIG.7, FIG.8), is mounted outside, either on a turbine sleeve member 5 or on a roof 6 (to a roof-mounted air flow conduit 7) and can optionally be supported by a plurality of bearing brackets 8 attached in a Y configuration in radial section to a roof 6 or a roof-mounted air flow conduit 7. The generator rotor 9 comprising at least one permanent magnet 10, centered upon the rotational axis of a head 11 is adapted to turn with the vane module (turbine head) 2. The vane module (turbine head) 2 is self rotated in response to the movement of the air, moving the permanent magnets 12 towards the coils 13 within close proximity, thus producing electric energy (current). The wind turbine generator assembly (device) of this invention can have a plurality of rotor tiers (rows) 14, each tier (row) corresponding to a plurality of stator tiers (rows) 15. [00032] As shown in FIG.3 the wind turbine generator assembly (device) of this invention is mounted around a wind turbine head with convex curvature turbine vanes. The wind turbine generator assembly (device) of this invention can have a plurality of rotor tiers (rows) 26, each tier (row) corresponding to a plurality of stator tiers (rows) 27. The stator coils can be connected in series circumferentially staggered in the cyclical or alternate alignment respectively for generating alternative currents, each of the groups having a corresponding specific phase 28. The wind turbine generator assembly (device) of this invention can have a plurality of stator panels/sections 29 mounted on either a turbine sleeve member 5 or on the roof-mounted air flow conduit 6, respectively. [00033] A wind turbine generator assembly (device) 1 for supplying electricity to a load, mounted outside of the vane module (turbine head) 2, either on a top portion as shown in FIG.4 and FIG.5 or middle portion as shown in FIG.6 or a lower portion as shown in FIG.7 of the vane module (turbine head). As shown, the generating device I is connected with the rectifier 22, electricity-storage 23 unit via a wire 24. As shown, the distance of the moving member and stator is adjustable 25. [00034] As shown in FIG.3 coils 13 comprising the stator 3 are divided into plural groups of coils connected in a series 14 circumferentially staggered in a page 6 cyclical or alternate alignment, respectively, for generating alternative currents, each of the groups having a corresponding specific phase. [00035] The coils 13 can be divided respectively into the first coil group 16, the second coil group 17 and the third coil group 18 which are cyclically aligned so as to generate three phase alternative currents. [00036] Alternatively, the coils can be divided respectively into a different number of groups, which are cyclically aligned so as to generate six or higher phase alternative currents correspondently. [00037] As shown in FIG.8 the wind turbine generator assembly (device) I is mechanically coupled to the turbine, particularly to the vane module (turbine head) 2 by the gear wheel 20 and the transmission 21 therefore enabling to transmit the revolving energy of vane module (turbine head) 2 to the wind turbine generator assembly (device) 1. As shown, the generating device 1 is connected with the rectifier 22, electricity-storage 23 unit via a wire 24. As shown, the distance of the moving member and stator is adjustable 25. [00038] Although, the invention has been described with reference to certain exemplary arrangements, it is to be understood that the forms of the invention shown and described are to be treated as preferred embodiments. Various changes, substitutions and modifications can be realized without departing from the spirit and scope of the invention as defined by the appended claims. page 7