The kinetic energy of the wind is referred to as wind energy. It is used to provide wind power and involves the usage of air flow to generate electricity with the help of wind turbines. There are two types of modern wind turbines, namely horizontal axis and vertical axis wind turbine. The size of the wind turbines varies on the basis of their usage. Wind is a variable source of energy and can be used in conjunction with other forms of power generation such as hydropower and solar power to provide continuous power. There are various factors which determine the amount of energy which a turbine can harness from the wind. A few of these are wind speed, air density and swept area. This book is compiled in such a manner, that it will provide an in-depth knowledge about the concepts and applications of wind energy. It is appropriate for students seeking detailed information in this area as well as for experts. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.