The book presents the proceedings of SOLARIS 2024, encapsulating the transformative discussions, groundbreaking research, and innovative solutions presented during the International Conference on Energy, Ecology, and Environment, held from February 6-9, 2024, at BPS, Margupur, Ballia, UP. This volume includes technical papers, and case studies from renowned experts on the insights on building-integrated photovoltaics, advanced research on biogas production, carbon credit systems, renewable energy technologies, and machine learning applications in urban sustainability. Readers will find cutting-edge studies on hybrid solar systems, nanotechnology in energy systems, and innovative solutions for solar desalination, among others. These proceedings serve as an invaluable resource for understanding emerging trends, implementing practical solutions, and advancing research in sustainable energy and environmental conservation. The contents will be useful to researchers, practitioners, and policymakers alike.