This book presents select peer-reviewed proceedings of the International Conference on Innovations in Clean Energy Technologies (ICET 2023) and examines a range of durable, energy-efficient, and next-generation smart green technologies for a sustainable future by reflecting on the trends, advances, and developments taking place across the globe. The topics covered include smart technologies-based products, energy-efficient systems, solar and wind energy, carbon sequestration, green transportation, green buildings, energy material, biomass energy, smart cities, hydropower, bio-energy, and fuel cells. The book also discusses various performance attributes of these clean energy technologies and their workability and carbon footprint. The book is a valuable reference for beginners, researchers, and professionals interested in clean energy technologies.