The energy audit is a technical service provided for a fee by the DOE to manufacturing plants, commercial buildings and other energy-intensive companies. A team of engineers from the Department evaluate the energy utilization efficiencies of equipment, processes and operations of these companies and recommend energy efficiency and conservation measures to attain energy savings.

The DOE is seeking the support of Energy Service Companies (ESCOs) or private firm that specialize in engineering and energy management services. The active participation of ESCOs is seen to provide alternative choices for industry clients in terms if securing the best technical advisory expertise in the field of efficiency and conservation.