This volume comprises the proceedings of the International Conference on Renewable Energy and Sustainable Technologies (ICREST 2024). It presents a curated collection of cutting-edge research and innovative developments in areas such as energy-efficiency enhancement, conservation strategies, environmental impact assessment, policy frameworks, and emerging trends in renewable energy and sustainability. The book offers a broad spectrum of scholarly contributions, covering topics such as evolving renewable energy technologies-such as solar, wind, hydroelectric, biomass, and geothermal systems-as well as sustainable practices and technological interventions across key sectors including agriculture, transportation, manufacturing, and construction. The book serves as a valuable resource for policymakers, industry stakeholders, researchers, academicians, and environmentally conscious readers.