Energy that is produced from natural sources is known as sustainable energy. The aim of producing sustainable energy is to meet the demands of our present and future generations without adversely affecting the ecological balance of our planet. Some common forms of natural energy are tidal power, bioenergy, wind energy and geothermal energy. This book strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. For all those who are interested in natural energy resources, this book can prove to be an essential guide. The readers would gain knowledge that would broaden their perspective about the subject.