This technical support document, dated September 2009, was created by the DOE national laboratories under the direction of DOE's Building Technologies Program. It describes the assumptions, methodologies, and analyses used to reach 50% energy savings over ASHRAE/IESNA Standard 90.1-2004. This package includes radiant heating and cooling with dedicated outdoor air systems (DOAS). Documentation and results are also presented for a second energy measure package that relies on a more conventional high performance variable air volume (VAV) system but does not achieve 50% energy savings in all 16 climate locations analyzed for this project.
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