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The Army is required by law (EPACT 2005, EISA 2007) to reduce overall facility energy usage by 30% by 2015 and to eliminate fossil fuel use in new and renovated facilities by 2030. Army policy is to achieve eight net zero energy pilot installations by 2020. Results of studies for new construction and major renovation projects which will be presented at this session show that utilization of high performance building envelopes, advanced lighting strategies, and efficient HVAC systems result in significant energy savings (site and source) in Army buildings in all climates. For example, barracks site energy can be reduced by 50–70% (depending on climate) compared to the EPACT 2005 baseline; maintenance facilities by 77–85%, etc. However, source energy use reduction goals of EISA 2007 (65% reduction by 2015) cannot be achieved by efficiency measures alone in any type of building except for maintenance facilities in some climate zones. Additional savings may be achieved with measures related to improved efficiency of power generation supplied to the building (co- and tri-generation), and to the use of energy supplied from renewable energy sources. Connecting a building to a Combined Heat and Power (CHP) plant can further reduce the building's fossil fuel usage by 10–25% depending on the thermal-to-electric load ratio.

Net Zero Building Cluster Energy Systems Analysis for U.S. Army Installations (CH-12-007)
Alexander Zhivov, Ph.D., Member, Richard J. Liesen, Ph.D., Member, David M. Underwood, Member, Stephan Richter, Ph.D., Reinhard Jank, Ph.D., Dieter Neth, Alfred W. Woody, P.E., Curt Bjork, Ph.D., Scott Duncan
This product contains: Slides (pdf) Recorded Presentation Audio (mp3)

Extremely Low Energy Design for Army Buildings: Barracks (CH-12-008)
Alexander Zhivov, Ph.D., Member, Peter Ellis, Member, Dale Herron, Member, Richard J. Liesen, Ph.D., Member
This product contains: Slides (pdf) Recorded Presentation Audio (mp3)

Extremely Low Energy Design for Army Buildings: Dining Facility (CH-12-009)
Michael Deru, Ph.D., Member, Rois Langner, Associate Member, Alexander Zhivov, Ph.D., Member, Richard J. Liesen, Ph.D., Member, Dale Herron, Member, Vernon A Smith, P.E., J.D., Associate Member
This product contains: Slides (pdf) Recorded Presentation Audio (mp3)

Extremely Low Energy Design for Army Buildings: Tactical Equipment Maintenance Facility (CH-12-010)
Rois Langner, Associate Member, Michael Deru, Ph.D., Member, Alexander Zhivov, Ph.D., Member, Richard J. Liesen, Ph.D., Member, Dale Herron, Member
This product contains: Slides (pdf) Recorded Presentation Audio (mp3)