Abstract : An energy and process optimization assessment (EPOA) study was conducted at selected U.S. Army installations in Germany and at two U.S. Army Garrison Wiesbaden schools to identify potential for energy conservation at those locations. The study identified energy conservation, process optimization, and environmental improvement opportunities that could significantly reduce operating costs and improve the installations mission readiness and competitive position. Eighty five energy conservation measures (ECMS) were identified, most of which were quantified economically; if implemented, these ECMS would reduce annual electrical energy consumption by approximately 2412 MWH, thermal heating consumption by 17277 MWH, and total operating costs by approximately $1.4 million/yr. Implementation of all these ECMS would cost approximately $9.7 million and would yield an average simple payback of 7.2 yrs. The study recommends that these potential cost savings be aggressively pursued with an program of energy and process optimization. A separate level I EPOA study of the industrial complex at the Germersheim DDDE and a Level II EPOA study at the flight simulator building in Illesheim were also recommended, since these locations both show potential for significant reductions in energy use and operating cost, and for improvement in worker productivity.