The aim of this project is to design a wind turbine energy system to produce electricity while working on an optimum rotor. In Kenya, energy is classified as a prime mover for many GE's 2 MW Platform is a three-blade, upwind, horizontal axis wind turbine with a rotor diameter of either 116 or 127-meters. The turbine rotor and nacelle are mounted on top of a tubular steel tower. The 2 MW-127 is offered at an 89-meter hub height, and the 2 MW-116 is offered at 80-meter, 90-meter, and 94-meter hub heights. The physical presence of a wind turbine in a large moving air mass modifies the local air speed and pressure as shown in Fig. 2. The picture is drawn for a conventional horizontal axis propeller type turbine. Wind Energy Systems by Dr. Gary L. Johnson November 21, 2001 conditions, selection of wind turbine size, subsurface investigation, assessment of geo-hazards, foundation and support structure selection, developing design load cases, and performing geotechnical and structural analyses . A flow diagram for the design process of a typical offshore wind turbine is shown in Figure 4. An 8 MW wind turbine is described in terms of mass distribution, dimensions, power curve, thrust curve, maximum design load and tower configuration. This turbine has been described as part of the Wind Power Plants - Types, Design and Operation Principles. Wind turbine axle rotates at speed of 20 rpm or less. The ai m of the gearbox is to increase of. rotation speed up to 1200 -1800 rpm Grid-connected wind power plants typically employ hundreds of 1 to 2 MW turbines today and larger, 3 to 5 MW machines, with 100-meter (m) (110 yards - longer than a football field) or greater rotors are being developed. The wind power placed outside of city because of more space required and constant flow of wind. The efficiency is low as There is the disk of size 37.6 mm, Outer radius and 34.0 mm inner radius .the distance between inner and outer radius is 5.00 mm. The radius of the centre shaft is having size 4 mm. • Average wind turbine installed during 2013: − rating of 1.87‐MW − hub height 80 meters − rotor diameter 97 meters Source: AWEA U.S. Wind Industry Annual Market Report 2013 Market Share for Wind Turbine Manufacturers of U.S. Wind Power Fleet • The top three wind turbine manufacturers: GE Energy ‐40% How big is a wind turbine? An industrial-scale wind turbineis a lot bigger than one you might see in a schoolyard or be-hind someone's house. The widely used GE 1.5-megawatt model, for example, consists of 116-ft blades atop a 212-ft tower for a total height of 328 feet. The blades sweep a vertical airspace of just under an acre. The IEC 61400 Wind turbine generator systems standards are the reference used for the certification of wind turbines. The IEC61400-2 focuses in design requirements for small wind turbines but they are not applicable to vertical-axis wind turbines (Wood, 2011). Technical standards should be considered in the design in order to ensure safe- The IEC 61400 Wind turbine generator systems standards are the reference used for the certification of wind turbines. The IEC61400-2 focuses in design requirements for small wind turbines but they are not applicable to vertical-axis wind turbines (Wood, 2011). Technical standards should be considered in the design in order to ensure safe- Photo from Bob Michelson Photography, NREL 12564 The size of the wind turbine you need depends on your application. Small turbines range in si