This book describes the energy management concepts, energy audit principles, resource efficiency, and other energy conservation opportunities involved in different sectors across varied industries. Real-time case studies from various large industrial sectors, like cement, paper and pulp, refineries, manufacturing, garments and textile processing, power plants, and other MSME industrial sectors with cross functional energy conservation opportunities, are included. It also describes the future scope of energy auditing and management including IoT and data analytics. It also helps to gather the energy generated and utilization, energy conservation, and other process related data. Features: Provides entire coverage of energy management and audit concepts Explores energy audit methodologies and energy saving initiatives Incorporates current technologies like machine learning, IoT, data analytics in energy audit for reliability improvement Includes case studies covering detailed energy saving calculation with investment pay back calculations This book is aimed at researchers, professionals, and graduate students in electrical engineering, power systems, energy systems, and renewable energy.