APPENDIX I:
DOE-2 Energy Modeling Summary - Courthouse
The following report summarizes the energy use simulations performed for the GSA LEED Cost
Study Courthouse model, using the computer program DOE2.1-E. The report includes the
following information:
1) A description of the "baseline" building assumptions, including the building geometry,
construction assemblies, building systems, schedules, and utility rates.
2) A comparison of the baseline building to a LEED Reference Case that meets the minimal
prescriptive requirements of ASHRAE/IESNA 90.1-1999.
3) A description of the individual Energy Efficiency Measures (EEMs) simulated to achieve
energy savings beyond the Baseline case.
4) A listing of the combined EEMs that were assembled to achieve three and five energy
points under LEED credit EA-1, Optimize Energy Performance.
5) Energy Cost Budget forms to document the points earned under credit EA-1.
A. GENERAL INFORMATION
The Mid-Rise Courthouse for this analysis is a six floor courthouse building (including
basement), located in Washington DC.
The simulation models for each scheme were created to ensure that the models met the
requirements of the following:
C
Facilities Standards for the Public Buildings Service (PBS-P100)
C
U.S. Courts Design Guide (1997)
C
ASHRAE / IES Standard 90.1 -
Energy Efficient Design of New Buildings Except Low-Rise Residential Buildings
C
Department of Energy Standard 10CFR, Part 435 -
Energy Conservation Voluntary Performance Standards for Commercial and Multi-Family
high Rise Residential Buildings: Mandatory for New Federal Buildings, Interim Rule
General information regarding the building geometry, construction materials, internal loads and
HVAC systems used for the "Baseline Case" DOE-2.1E annual energy simulation is provided
below.
Weather File:
DOE-2.1E Weather file: Washington DC
Building Area (as simulated in DOE-2.1E):
Approximately 256,000 ft of conditioned space
APPENDIX I - GSA LEED COST STUDY
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