This book has been written primarily to serve as a textbook in accordance with the syllabus of Renewable Energy Resources offered by AKTU- Lucknow. It is intended to provide a student with a clear understanding of the fundamentals of Non- Conventional Energy Resources with an emphasis on the current status and scope of India and other countries. The oil crisis of 1973 and concern for the environment due to the excessive use of fossil fuels have led to a remark