This book presents a collection of high-quality research articles in the field of power engineering, grid integration, energy management, soft computing, artificial intelligence, signal and image processing, data science techniques, and their real-world applications. This book is presented at International Conference on Power Engineering and Intelligent Systems (PEIS 2026), held during March 14–15, 2026, at National Institute of Technology Srinagar, Uttarakhand, India. This book is presented in four volumes.