Energy Audit of an Enterprise from Machine Industry

Abstract

An energy survey of an enterprise operating in field of machine industry is carried out. During the energy audit, primary information about energy consumed by the enterprise for heating, ventilation, lighting and needs of production process for three year period was collected. Annual energy costs for three consecutive years were compared and highest energy costs were taken as a basis for determining the energy consumption baseline. Proposals for energy-saving measures are defined. The specific energy costs before and after energy-saving measures were calculated and comparisons between them were made. An assessment to optimize number of workers in the enterprise and increase its competitiveness was made. The effect of increasing the productivity of the enterprise was evaluated. Direct and indirect cost savings were estimated, realized during the implementation of energy-saving measures. Annual energy savings in machine industry enterprise as energy saved in kWh/year and in saved carbon emissions/year to the environment were presented.