Exploring background information about potential wind energy and future wind project in Turkey and World. Turkey has very quality wind power potential. Nevertheless, benefitial from wind power up to 5 % of total wind potential. Analysing to take accounts of the wind data measured as monthly time in the windy areas which is taken by EIE in 2014. In addition providing that legilation and application mechanism in Turkey. The other part is that choising site for wind farm and comparison of wind turbines so choosing to build right turbine for wind farm. The final and main part is CFD analysis for Band_rma windfarm project therefore, it finds out energy output by using porous disc method instead of wind turbines and get the best efficient and wind speeds vectors, wind direction and pressure in area.