Due to the rise in world population in the last couple of decades, the need for energy conservation has dramatically risen. Governments across the globe are stressing on the use of alternative energy production methods like solar panels, hydropower, wind energy, etc. so as to limit the use of biodiesel in energy production. This green movement is being followed to conserve and preserve energy for the future generations. The aim of this text is to equip students with all the latest developments made in this field. The topics introduced in the book cover all the elements from the most basic to the most complex. As this field is emerging at a rapid pace, the contents of this textbook will help the readers understand the modern concepts and applications of the subject.