Comparison of Energy Efficiency Standards in the Public Building of China, the US, the UK

The China construction industry accounts for about 30% of total energy consumption, a high proportion of the energy consumed, which causes a large amount of emissions of greenhouse gas. This paper takes a look at the China national standard GB50189-2005, Design Standard for Energy Efficiency of Public Buildings, the ASHRAE90.1 of US and the part L of UK, and then compares the similarities and differences between the three design standards. At the end, relevant suggestion to tackle these weaknesses for long-term energy efficiency development in public buildings are proposed in this paper.