This is an open elective course developed to cater current needs of the industry. This course covers topics such as energy conservation act and energy conservation schemes. It also covers energy efficient lighting design, the student will learn power factor improvement techniques, energy efficiency in HVAC systems. In addition, economic aspects such as payback period calculations, life cycle costing analysis are covered in this course.It supports multi-disciplinary under graduate courses and Master's Degree in Engineering. Practicing engineers also find it as a useful text and a reference book. Learning Objectives: To understand energy efficiency, scope, conservation, and technologies. To design energy efficient lighting systems. To estimate/calculate power factor of systems and propose suitable compensation techniques. To understand energy conservation in HVAC systems. To calculate life cycle costing analysis and return on investment on energy efficient technologies.