The process of energy saving is referred to as energy management. It can be defined as the proactive, organized and systematic management of energy use in a building or organization to satisfy both environmental and economic requirements. Energy management is the art and science of optimum use of energy to maximise profits (minimise costs) and thereby improve the economic competiveness. The energy should be used efficiently, economically and optimally. The energy management involves strategy, policy, organisational changes, energy audit, energy conservation measures, administrative actions, training and awareness programmes, monitoring of energy conservation efforts etc.