The Factors for selection of site for Wind Mills: 1) The site should be selected where winds are strong i.e. where pressure of wind is high and there is continuity (14.4- 16.2 km/h) and above. 2) Wind pressure is also high in hilly area so wind turbines are located in hilly area. 3) It is better to choose a site near the sea shore i. e. ON shore (coastal area) 4) Winds turbines are also installed OFF shore (in ocean) OFF shore 5) Site should be convenient for transportation facility. 6) The cost of land should be low. 7) Plant must be installed on tall towers (45m to 149 m) because velocity of wind is more at high level. 8) A good location for a wind turbine is on high ground facing between west and south west. 9) There should be no tall obstacles within 50m of the turbine which can affect the system's overall performance 10)Possibility to connect to power grid.