developed with various energy packages and op-
tions; sustainability features were identified for each
building to meet federal mandates. Meetings were
held with USACE COS to discuss how to improve the
energy performance of the buildings and to have a re-
ality check on assumptions, ideas and options. Cost
estimates were developed to determine the difference
between the baseline buildings and proposed en-
hanced design options. Finally, a LEED analysis was
completed as an outcome of the energy modeling and
estimating. Specific targets for the study included:
- Army buildings designed to be net zero ready;
- 65 percent reduction in overall energy con-
sumption compared to 2003 energy usage; - 30 percent domestic water reduction;
- 50 percent waste water reduction; and
- 25 percent operating cost reduction.
The project was a collaboration between US-
ACE, CERL, National Renewable Energy Laboratory
(NREL), and the Pacific Northwest National Labora-
tory (PNNL). The study showed that it is very chal-
lenging for individual buildings to reach the net-zero
energy targets mandated by the Energy Independence
and Security Act (EISA). Instead it is more effective
to cluster “low-energy” facilities around a district
heating/cooling/renewable energy plant to take ad-
vantage of shared savings and improved efficiencies.
Guidance resulting from the study was published in
ECB 2011-1. This study did not consider the imple-
mentation of ASHRAE 189 which is now required.
A Sustainable Future for Facilities
The USACE 2030 Integration Project is a look into
the future of Army facilities. It addresses resiliency at