There are two main categories of buildings in China: residential buildings and nonresidential buildings (e.g. commercial buildings, factory and plant buildings) (Qiuet al., 2007). According to the regulations from Chinese Construction Ministry, the commercial buildings (e.g. shopping malls, offices, and hotels) withfloor area is
over 20,000 m2 is defined as the large commercial buildings
(Chinese Construction Ministry, 2005). Jiang and Tovey (2010) point
out that the energy use and carbon emissions in large commercial
building are 4e6 times higher than residential buildings in China.