This book collects selected papers from the International Conference on Energy Engineering 2025. It is dedicated to the forefront of energy innovation and explores groundbreaking research across seven key tracks, including Renewable Energy, Clean Energy Technologies, Intelligent and Electrical Energy Systems, Energy Efficiency, Energy Storage, Energy Policy and Sustainability, and Mitigation Technologies. It also discovers cutting-edge solutions and strategies to propel sustainable energy production, enhance system efficiency, and address pressing environmental challenges. This book caters to researchers, industry professionals, policymakers, and stakeholders invested in shaping the future of energy technology and policy.