This book provides an overview of recent progress in renewable energy materials and devices. Various forms of renewable energy, such as solar, water, and wind energy, have garnered significant attention in research domains due to their potential applications. Solar cells have become particularly intriguing for harnessing solar energy, while the distinctive characteristics of wind energy have drawn the focus of numerous researchers. Renewable energy offers several advantages and applications in contrast to conventional energy sources. The book comprehensively addresses recent advancements in diverse aspects of renewable energy, encompassing solar, water, and wind energy resources.