This first volume in the new ASME Press Book Series on Renewable Energy is based on updated chapters from the classic 2011 Handbook of Energy and Power Generation, also edited by Dr. Rao and published by ASME Press. The discussions in this book cover varied aspects of solar energy in use around the globe. Chapters 1 through 6, deal with Solar Energy in over 200 pages addressed by 15 experts from academia, NASA, and practicing professionals from the U.S., Europe, China, and India. Global interest in solar energy is apparent not only from the current usage but also from the untapped resources and its potential for greater usage.