The global energy landscape is undergoing a profound transformation driven by the urgent need for sustainability, environmental protection, and energy security. Rising energy demands, depletion of fossil fuel reserves, and concerns over climate change have accelerated the transition toward renewable energy systems and innovative technological solutions. The multi-author volume, Renewable Energy Sources and Emerging Technology, has been developed to provide a comprehensive and forward-looking perspective on this dynamic and rapidly evolving field.

This book brings together the expertise of academicians, researchers, and industry professionals who have contributed their specialized knowledge to present both foundational concepts and advanced developments in renewable energy technologies. The collaborative nature of this volume ensures a balanced treatment of theory, practical implementation, policy considerations, and future research directions.

The primary objective of this book is to present a systematic understanding of various renewable energy sources such as solar, wind, hydro, biomass, geothermal, and ocean energy, while also addressing emerging technologies including smart grids, energy storage systems, hydrogen energy, electric mobility, artificial intelligence applications in energy management, and hybrid renewable systems. Emphasis has been placed on technological innovation, system integration, economic feasibility, and sustainability assessment.

Each chapter is designed to bridge the gap between academic study and real-world application. Mathematical modeling, performance analysis, case studies, and recent technological advancements are incorporated to enhance conceptual clarity and practical relevance. The contributors have ensured that complex engineering concepts are presented in a clear and structured manner, making the book accessible to undergraduate and postgraduate students, researchers, policymakers, and practicing engineers.

Special attention has been given to emerging trends such as grid integration challenges, distributed generation, microgrids, Internet of Energy (IoE), advanced power electronics, energy storage technologies, and carbon-neutral strategies. These topics reflect the interdisciplinary nature of modern energy systems and highlight the importance of innovation in achieving sustainable development goals.

The editors sincerely acknowledge the dedication and scholarly commitment of all contributing authors whose collective efforts have made this volume possible. We also extend our appreciation to peer reviewers and academic colleagues for their constructive feedback and valuable suggestions. Their insights have significantly enhanced the technical depth and academic quality of this book.

It is our sincere hope that Renewable Energy Sources and Emerging Technology will serve as a valuable academic resource, a practical guide for professionals, and an inspiration for future research in sustainable energy systems. As the world advances toward cleaner and smarter energy solutions, we believe this book will contribute meaningfully to the education and empowerment of the next generation of engineers and innovators.