INTRODUCTION OF WIND TURBINES: Windmills are amazing creations that have their importance in our history. Early pioneers used windmills to pump water from the ground and provide water for their livestock for over a century. Over the years, different contours and varieties have been made to make the windmill work more effectively. Although many plans have been made, most parts of the windmill have remained unchanged. Nowadays the management of "electricity" has been increased rapidly. For this reason, “fossil fuels” are becoming extinct day after day. So we have to choose an alternative energy source which is the renewable source. Among renewable sources, "wind energy" is one of these. Windmills harness the kinetic energy of the wind and convert it into electrical energy. Wind speed, rotor type, generator type, noise minimization, load and control approach are additional key turbine design considerations. Additionally, current trends, driven by operational stewardship and the mastery of nature, include the improvement of low-cost, megawatt-scale turbines and light-duty turbine designs. While turbines operating at constant rotor speed have been overwhelming until now, turbines with variable rotor speed are becoming increasingly common in an effort to optimize energy capture, reduce loads, achieve better power quality and provide more developed power. control characteristics. The first practical windmills were built in Sistan, Iran, starting in the 7th century. OBJECTIVES1. Produce electricity from "Renewable Sources".2. Without pollution (eco-friendly).3. Reliability.4. The cheapest.STAKEHOLDER1. Domestic users2. Commercial3. Agri......middle paper......at high altitude. The height of the tower varies depending on the location. Areas with lower wind speeds may require a taller tower. The wind passes over the blades creating lift (like an airplane wing) that spins the rotor. The blades turn a low-speed shaft inside the spacecraft: gears connect the low-speed shaft of the rotor with a high-speed shaft that drives a generator. Here, the slow rotation speed of the blades is increased up to the high rotation speed of the generator. Some wind turbines do not contain a gearbox and instead use a direct drive mechanism to produce power from the generator. The rapidly spinning shaft drives the generator to produce electricity. The electricity from the generator goes to a transformer which converts it into the right voltage for the electrical grid. The electricity is then transmitted through the power grid.