Abstract
The excessive use of energy in residential, commercial and industrial buildings and equipment used necessitate the decision maker to always question on how the energy used is being efficient. More emphasize of works will be put into industrial sectors due to the competitive of producing better products with lesser cost. The small percentage of energy use reduction relates to the product cost and profit margins. Therefore, it is important to the energy auditor of an industry or enterprise to have a systematic method to audit the company/factory and energy used by the equipment to produce the practical actions needed in reducing the energy usage and improves the comfort and product quality. This paper describes application of energy audit to help decision maker in using the energy more efficiently.