I Prof. Ankit Kumar, Assistant professor of Sandip Institute of Engineering and Management with help of Prof. Ashish Borade and Prof. Tushar Patil publishing this book which will make student interest in solar energy which is non conventional energy and need of Earth. This book help student to understand the basic principal of solar energy and how this energy is helpful for the basic need of human. This book also help student to develop small application based on the solar energy.