Abstract: There are number of sources for generation of power but in the recent years wind energy shown its potential as the clean source of energy and contributing to the high energy demands of the world. In this paper we present an historical background of wind turbine and over view on its type .review of wind mills topic are chosen because wind energy is renewable resource and wind energy is cheap and is largely dependent upon manufacturing, distribution and building of turbines. Wind turbine having main two types that is horizontal axis wind turbine (HAWT) and vertical axis wind turbine (VAWT). The horizontal axis wind turbine cannot be used for household purpose, it required more space for installation.

Keywords: HAWT, Turbine, VAWT, Wind Mill.