Evaluation of the Computerized Utilities Monitor and Control System installed at the US Army, Europe, 26th Support Group at Heidelberg, Germany

Abstract

Martin Marietta is evaluating the Computerized Utilities Monitor and Control System (CUMACS/EMCS) installed at the Headquarters, USAREUR, 26th Support Group in Heidelberg, Germany. This evaluation relies upon existing data and information to take an in-depth look at the overall performance and effectiveness of the CUMACS/EMCS to determine if its achieving its operational objectives and meeting projected energy and cost savings. The evaluation described in this report indicates that the CUMACS/EMCS is well maintained and is managed and operated by a well-trained and dedicated staff. Between FY 1984 and FY 1990, CUMACS/EMCS operations have contributed significantly to the overall reduction in energy consumption achieved by the USAREUR 26th Support Group in Heidelberg. Various energy conservation programs being implemented simultaneously are interrelated and contribute incrementally to the aggregate reduction in installation energy consumption. The energy and cost savings attributed to CUMACS/EMCS operations are significant, and Energy Conservation Investment Program military construction project requirements (savings to investment ratio, simple pay-back period, and energy-to-cost ratio) have been exceeded by a large margin. A very important consideration in evaluating an EMCS is to understand which conservation measures produce the greatest energy and cost savings. Over 50% of the reported costs savings is attributable to moremore » energy-efficient operation of space and hot water heating systems and equipment in CUMACS/EMCS-controlled buildings and facilities. This fact is further confirmed by the fact that over 95% of reported energy savings can be attributed to CUMACS/EMCS operation of thermal energy systems. This report discusses and presents graphically the details of the evaluation. The benefits of CUMACS go beyond energy and cost savings. 11 refs., 14 figs., 4 tabs.« less