Utilization the benefit of wind requires the important thing is "windmill" in changing the kinetic power from movement of wind to mechanical power before use. The wind power has become frequently energy usage in development of green energy. Today, th developeing of wind turbines have a high technology which is have sensors and accurate control, Each of turbine blade is continuously adjusted as well. Intelligent controllers expose more of the blade to capture the most wind. If windmill dangerously strong, the blades can also be rotated to minimize their exposure and the risk of damage. Improvements in weather forecasting are also increasing the output from wind farm. Accurate wind forecasts can increase the power by 10 percent by having a better grip on the wind's intermittent nature. Modern turbines can also provide “assistance services” such as reactive power and frequency keeping services. These functions help to stabilize the grid or local network a wind farm is connected into, effectively ensuring the lights stay on.