Military installations are large energy consumers in many countries. In order to evaluate energy saving possibilities in such facilities an energy audit was conducted in a typical military campus. The audit objective was to provide background for similar applications in all military facilities. In the energy audit were included buildings design and envelope and energy systems such as HVAC systems, water heating, lighting, electrical power systems and other. Audit results and recommendations were consisted in a series of proposals for energy saving measures. For each measure the preliminary cost estimate was provided together with the economic evaluation in order to form an investment plan that could be funded from the department of the defense.