Dr. P. Jayarama Reddy is an energy consultant to the solar photovoltaic industry and serves as a board member of several international renewable energy companies related to solar module fabrication, power generation from biomass and municipal solid waste. He is a retired professor of Physics (Sri Venkateswara University, Tirupathi, India) and has worked in various big research laboratories at Cornell University (US), Imperial College London (UK), Charles University (Czech Republic), and Stuttgart University (Germany). Dr. Reddy is a Fellow of the Institute of Physics (UK) and has published a number of papers on polycrystalline thin fi lm solar materials and cells, as well as the book Science and Technology of Photovoltaics, published by BS Publications / CRC Press/Balkema.