The preliminary step for decision making in the area of efficient energy management is an Energy Audit. Energy Audit attempts to identify all the energy streams in a facility and map the energy usage. It attempts to balance the energy inputs to the use thus identifying or eliminating wastage in the process. The Energy Audit has been defined as “the verification, monitoring and analysis of the use of energy including submission of technical report containing recommendations for improving energy efficiency with cost benefit analysis and an action plan to reduce energy consumption.