Prevalence of Findings from ASHRAE Level 2 Energy Assessments at 13 Colleges
To meet a number of objectives, not the least of which is cost savings, colleges and universities of all sizes, public and private, have been exploring opportunities to reduce energy use and costs. In operational or maintenance practices, energy inefficiencies may be present due to the condition of mechanical systems or campus infrastructure, or as a result of behavioral and cultural habits. To derive information for an energy master plan (EMP), and derive, prioritize and implement energy conservation measures, the first step is to obtain a perspective on campus- wide opportunities for an improved energy profile and resultant cost savings. This program of energy assessments has been performed at 13 of the colleges at the City University of New York (CUNY). The assessments identified opportunities in the following 12 categories on a building-specific basis for a total of 169 buildings: building envelope, lighting, HVAC, plumbing, boiler plant, chiller plant, building automation system, utility distribution, electrical, special systems (as appropriate), O&M, and existing building commissioning (EBCx). There were 36 subcategories, which are described for clarity as to the scope of the assessment in these areas. The energy assessments have noted some commonalities among the energy saving opportunities that were observed. Buildings with some common uses (administration, library, science) did not necessarily reflect strong commonalities, possibly given the relatively limited number of buildings with these uses in the database and the relative diversity of building age, historical use and construction.The results of this article will be useful as a benchmark to stakeholders involved in or planning similar assessments.
Building Commissioning Association. 2015. Best Practices in Commissioning Existing
Buildings. www.bcxa.org, accessed April 23, 2015.
Doty, Steve, 2011, “Energy Saving Measure Interactions in Chilled Water Systems,” Energy
Engineering, Vol. 108, No. 5, pg. 7-35.
Eberly, David A., 2012, “Campus Energy Cost Savings Studies: Applications of Energy
Best Practices,” Strategic Planning for Energy and the Environment, Vol. 31, No.
, pg. 65-80.
Kozman, Theodore A., Brittany N. Aulds, and Jim Lee, 2011, “Energy Assessment and Conservation in a University Environment. Energy Engineering,” Vol. 108, No. 5,
Mills, E., 2009, “Building Commissioning: A Golden Opportunity for Reducing Energy
Costs and Greenhouse Gas Emissions,” Lawrence Berkeley National Laboratory,
Mitchell, Michael, Vincent Palacios, and Michael Leachman. 2014. States are Still Funding
Higher Education Below Pre-Recession Levels. Center on Budget and Policy Priorities,
Pacific Gas and Electric Company, 2006, “High Performance Data Centers—A Design
Guidelines Sourcebook,” San Francisco, CA.
Pitts, Adrian, and Jasmi Bin Saleh, 2007, “Potential for Energy Saving in Building Transition
Spaces,” Energy and Buildings, Vol. 39, pg 815-822.
Pullen, Stephen, 2000, “Energy Assessment of Institutional Buildings,” 34th Annual
Conference of the Australia & New Zealand Architectural Science Association,
Quinterno, John. 2012. The Great Cost Shift. Demos, New York, NY.
Ritter, Edward L., 2012. “Findings of an ASHRAE Level II Energy Audit of a Senior Living
Facility,” Energy Engineering, Vol. 109, No. 3, Pg. 31-40.
United Nations Environment Programme, 2014, Sustainable Buildings and Climate Initiative.
http://www.unep.org/sbci/AboutSBCI/Background.asp (accessed August
U.S. Department of Energy, 2011, Buildings Energy Data Book, Washington, D.C.
U.S. Department of the Treasury and the U.S. Department of Education. 2012. The Economics
of Higher Education. Washington, DC.
U.S. Environmental Protection Agency, 2007. EnergyStar Building Manual, http://www.
Zhou, Xuan, Junwei Yan, Junwen Zhu, and Panpan Cai. 2013, “Survey of Energy Consumption
and Energy Conservation Measures for Colleges and Universities in
Guangdong Province,” Energy and Buildings, Vol. 66, pg. 112-118.