The purpose of energy audit is determination of reserves of energy resources cost reduction. The procedure of revealing the energy-saving potential is in a gradual studying of energy-saving systems of the Enterprise with the help of special equipment and methodologies, studying of accounting systems of usage of purchased energy resources and ones of own production, analysis of data for certain period of Enterprise work and identification of behaviour and connections between consumption of energy resources and production output.

The experience of carrying out the energy inspections both in domestic and world practice shows that under condition of introduction of organizational and low-cost measures, decreasing of energy consumption makes 2-4%. Total amount saved when introducing all the measures offered by auditors as a rule makes over 5-10%.

The result of the energy audit is a report including description of existing situation at the Enterprise and list of energy-saving Capabilities (measures), each is accompanied with calculation of economy efficiency with calculation of simple payback period and their classification by economic attraction, which can be the ground for the prospective energy-saving program and energy efficiency for the Enterprise for the period up to 5 years.

The cost of works in each case is determined individually and depends on many reasons. As a rule the cost of works makes 1-5% of annual consumption of electric power and natural gas by the Enterprise.

The maximum effect can be achieved in following branches:

1. Housing maintenance and utilities (heat and water supply)
2. Mining industry
3. Metallurgy
4. Chemical industry
5. Food industry.