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Recommendations for 15% Above-Code Energy Efficiency Measures for Commercial Office Buildings
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This report presents detailed information about the recommendations for achieving 15% above-code energy performance for commercial office buildings complying with ASHRAE Standard 90.1-19991. To accomplish the 15% annual energy consumption reductions, ten measures were considered. After energy savings were determined for each measure, they were then placed in several groups to accomplish a minimum of 15% total annual energy consumption reduction. The analysis in this paper uses the total annual energy consumption of a simulated commercial building to determine the 15% above-code recommendations. The analysis also reports end-use energy use, including: heating, cooling, domestic hot water use, fans, heat rejection, equipment and lighting loads, and miscellaneous loads as defined by the BEPS and BEPU reports from the DOE-2 program. Since the 15% above-code savings use annual energy cost savings, these same measures will report greater savings when compared against total heating and cooling loads, which has been used in other above-code program recommendations.
Montgomery, C.; Yazdani, B.; Haberl, J. S.; Culp, C.; Liu, Z.; Mukhopadhyay, J.; Cho, S. (2008). Recommendations for 15% Above-Code Energy Efficiency Measures for Commercial Office Buildings. Energy Systems Laboratory. Available electronically from