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Document type: Comparison, State-specific, Technical Assistance report
Publication Date: August 2005
Page Focus: Adoption

This study was undertaken for the Arizona Department of Commerce, who requested the U.S. Department of Energy (DOE) provide technical assistance with regard to identifying the major differences in the model energy codes as they might be applied to various locations in Arizona. This study focuses upon the requirements for commercial (non-residential) buildings in these codes. In both codes, “commercial” buildings include high-rise multi-family buildings as well as traditional “commercial” occupancies such as offices, retail buildings, and assembly buildings.

Document type: State-specific, Technical Assistance report
Publication Date: September 2009
Page Focus: Adoption

This nationwide analysis of commercial energy code compares ASHRAE Standard 90.1-2007 with the commercial code in each state as of June 2009. The results are provided in chapters specific to each state.

States with unique energy codes were not included in the analysis because the codes in these states would be difficult to appropriately compare to ASHRAE Standard 90.1 and most of these states have energy offices that routinely assess their codes against the model codes. In states with codes prior to and including the 2000 IECC or Standard 90.1-1999, those states with no statewide energy code, and home rule states which did not specifically request that another code be used, Standard 90.1-1999 was used as the baseline for comparison.

Three DOE Benchmark buildings were used for the simulation used in this analysis: a medium office building (53,600 ft2), a mid-rise apartment building (33,700 ft2), and a non-refrigerated warehouse (49,500 ft2...