Smart Sustainability: Innovations in Advanced Renewable Energy and Green Technologies presents a collection of peer-reviewed papers selected from the International Conference on Sustainable Technologies and Advanced Research (i-STAR 2025). The volume highlights recent advances in sustainable engineering, renewable energy, green technologies, and intelligent systems, showcasing innovative research that addresses contemporary environmental, industrial, and societal challenges through interdisciplinary scientific and engineering approaches.

The book covers a wide range of emerging topics in sustainable engineering and advanced technologies, including renewable energy systems, photovoltaic technologies, energy harvesting, sustainable manufacturing, Industry 4.0, advanced materials, computational modelling, artificial intelligence, smart sensing, robotics, structural engineering, biomedical materials, building energy efficiency, environmental remediation, and transportation sustainability. The chapters present experimental investigations, numerical simulations, computational techniques, optimization methods, and comprehensive review studies that demonstrate practical solutions for improving energy efficiency, reducing environmental impact, enhancing manufacturing productivity, and supporting sustainable infrastructure development. By integrating innovations in digital technologies with green engineering practices, this volume provides valuable insights into developing intelligent, sustainable solutions that advance global sustainability goals and technological progress.

This book is intended for researchers, academicians, postgraduate students, industry professionals, and policymakers working in mechanical engineering, renewable energy, sustainable manufacturing, materials science, environmental engineering, artificial intelligence, and smart technologies. It also serves as a valuable reference for practitioners seeking innovative approaches to sustainable engineering and the development of green technologies.

Ravindra Giriraj Bhardwaj is an Assistant Professor of Mechanical Engineering at BITS Pilani, Dubai Campus. He holds a Ph.D. from the University of California, Riverside, where he investigated spin caloritronic phenomena in thin film heterostructures. His research focuses on MEMS, nanomaterials, sustainable energy, and numerical simulations. Dr. Bhardwaj has authored numerous high-impact publications and holds patents in thermal energy systems. He is actively involved in organizing international conferences, academic leadership, and interdisciplinary research. With hands-on expertise in nanofabrication and characterization techniques, he brings a strong blend of theoretical insight and practical innovation to emerging energy and materials technologies.

Nithin Tom Mathew is an Assistant Professor of Mechanical Engineering at BITS Pilani, Dubai Campus. He holds a Ph.D. from IIT Madras and has over seven years of teaching and research experience in smart manufacturing, Industry 4.0, laser micromachining, and sustainable microfabrication. He has published extensively in reputed journals and conferences and collaborates with leading industries and institutions. Dr. Mathew has mentored industry professionals on research projects and actively integrates cutting-edge technologies and experiential learning in his teaching. He is also a reviewer for top-tier journals and a member of professional bodies including ASME and IEEE.