This text investigates the technical, economic, and environmental viability of transitioning global power systems toward renewable energy sources. Edited by Godfrey Boyle, the book compiles contributions from leading experts to provide a comprehensive overview of the technologies that harness natural processes for electricity and heat. It argues that a shift away from fossil fuels is not only necessary for climate mitigation but increasingly feasible through advancements in solar, wind, biomass, and hydroelectric engineering.

Experts frequently cite this work as a foundational textbook for students and professionals entering the field of sustainable energy. Readers often note the academic density of the prose, which balances complex engineering principles with clear policy implications.