TY - JOUR T1 - Comparison of Building Energy Use Data Between the United States and China JF - Energy and Buildings Y1 - 2014 A1 - Jianjun Xia A1 - Tianzhen Hong A1 - Qi Shen A1 - Wei Feng A1 - Le Yang A1 - Piljae Im A1 - Alison Lu A1 - Mahabir Bhandari KW - buildings KW - comparison KW - data analysis KW - data model KW - Energy benchmarking KW - energy monitoring system KW - energy use KW - retrofit AB -

Buildings in the United States and China consumed 41% and 28% of the total primary energy in 2011, respectively. Good energy data are the cornerstone to understanding building energy performance and supporting research, design, operation, and policy making for low energy buildings. This paper presents initial outcomes from a joint research project under the U.S.–China Clean Energy Research Center for Building Energy Efficiency. The goal is to decode the driving forces behind the discrepancy of building energy use between the two countries; identify gaps and deficiencies of current building energy monitoring, data collection, and analysis; and create knowledge and tools to collect and analyze good building energy data to provide valuable and actionable information for key stakeholders. This paper first reviews and compares several popular existing building energy monitoring systems in both countries. Next a standard energy data model is presented. A detailed, measured building energy data comparison was conducted for a few office buildings in both countries. Finally issues of data collection, quality, sharing, and analysis methods are discussed. It was found that buildings in both countries performed very differently, had potential for deep energy retrofit, but that different efficiency measures should apply.

VL - 78 U2 - LBNL-6669E ER -