The book is a collection of best-selected research papers presented at the Fifth International Conference on “Mathematical Modeling, Computational Intelligence Techniques and Renewable Energy (MMCITRE 2025),” organized by International Institute of Information Technology, Naya Raipur (IIIT-NR), Chhattisgarh, India. This book presents new knowledge and recent developments in all aspects of computational techniques, mathematical modeling, energy systems, applications of fuzzy sets, and intelligent computing. This book provides innovative works of researchers, academicians, and students in the area of interdisciplinary mathematics, statistics, computational intelligence, and renewable energy.