May 10, 2022
Conference Paper

Optimal Sizing of Resilience Solutions for the U.S. Army Reserve


Power or water outages in buildings threaten the ability of the military to support surrounding communities during natural disasters. Outages can last for days, weeks or months. Typical solutions include very expensive batteries and onsite generation that are sized based on historical power needs. The U.S. Army Reserve (USAR) has teamed up with the Pacific Northwest National Laboratory (PNNL) to develop a simulation framework that optimizes future power needs to reduce the cost of resilience solutions. The approach starts with the building. Power needs during an emergency event are simulated at the building end-use level, then loads are reduced through the selection of life cycle cost-effective building-level technology improvements. These new optimized loads are then fed into a microgrid sizing tool that dynamically constructs many different combinations of solar photovoltaic, battery storage, and generator resources to meet the load for hundreds of statistically generated outage scenarios. Six site assessments completed by USAR and PNNL in 2019 have resulted in a 1-14% reduction in overall investment when optimizing the buildings first before determining the generation requirements. This approach helps the Army secure critical missions and provide a 14 day-minimum supply of necessary energy and water in the most efficient manner.

Published: May 10, 2022


Wendel E.M., S.F. Newman, and E.M. Mets. 2020. Optimal Sizing of Resilience Solutions for the U.S. Army Reserve. In ACEEE Summer Study on Energy Efficiency in Buildings, August 17, 21, 2020. Virtual, Online, 11-391 - 11-402. Washington, District Of Columbia:American Council for an Energy Efficient Economy. PNNL-SA-152056.