Technical Support Document: Development of the Advanced Energy Design Guide for Small Office Buildings

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Abstract

This Technical Support Document (TSD) describes the process and methodology for the development of the Advanced Energy Design Guide for Small Office Buildings (AEDG-SO), a design guidance document intended to provide recommendations for achieving 30% energy savings in small office buildings over levels contained in ANSI/ASHRAE/IESNA Standard 90.1-1999, Energy Standard for Buildings Except Low-Rise Residential Buildings. The AEDG-SO is the first in a series of guides being developed by a partnership of organizations, including the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE), the American Institute of Architects (AIA), the Illuminating Engineering Society of North America (IESNA), the New Buildings Institute (NBI), and the U.S. Department of Energy (DOE). Each of the guides in the AEDG series will provide recommendations and user-friendly design assistance to designers, developers and owners of small commercial buildings that will encourage steady progress towards net-zero energy buildings. The guides will provide prescriptive recommendation packages that are capable of reaching the energy savings target for each climate zone in order to ease the burden of the design and construction of energy-efficient small commercial buildings The AEDG-SO was developed by an ASHRAE Special Project committee (SP-102) made up of representatives of each of the partner organizations in eight months. This TSD describes the charge given to the committee in developing the office guide and outlines the schedule of the development effort. The project committee developed two prototype office buildings (5,000 ft2 frame building and 20,000 ft2 two-story mass building) to represent the class of small office buildings and performed an energy simulation scoping study to determine the preliminary levels of efficiency necessary to meet the energy savings target. The simulation approach used by the project committee is documented in this TSD along with the characteristics of the prototype buildings. The prototype buildings were simulated in the same climate zones used by the prevailing energy codes and standards to evaluate energy savings. Prescriptive packages of recommendations presented in the guide by climate zone include enhanced envelope technologies, lighting and day lighting technologies and HVAC and SWH technologies. The report also documents the modeling assumptions used in the simulations for both the baseline and advanced buildings. Final efficiency recommendations for each climate zone are included, along with the results of the energy simulations indicating an average energy savings over all buildings and climates of approximately 38%.

Related Papers

• → ANSI/ASHRAE/IESNA Standard 90.1-2007 Final Determination Quantitative Analysis(2011)4 cited
• → ANSI/ASHRAE/IES Standard 90.1-2010 Final Determination Quantitative Analysis(2011)2 cited
• → ANSI/ASHRAE/IES Standard 90.1-2010 Final Determination Quantitative Analysis(2011)2 cited
• → ANSI/ASHRAE/IESNA Standard 90.1-2010 Preliminary Determination Quantitative Analysis(2010)
• → ANSI/ASHRAE/IESNA Standard 90.1-2007 Final Determination Quantitative Analysis(2011)