ETA Researchers Michael McNeil, Wei Feng, Stephane de la Rue du Can, Nina Zheng Khanna, Jing Ke, and Nan Zhou were recently published in Energy Policy Journal. The article, Energy Efficiency Outlook in China's Urban Buildings Sector Through 2030, discusses "a bottom-up modeling approach to quantify emission reduction from efficiency programs," and its results.
This study uses bottom-up modeling framework in order to quantify potential energy savings and emission reduction impacts from the implementation of energy efficiency programs in the building sector in China. Policies considered include (1) accelerated building codes in residential and commercial buildings, (2) increased penetration of district heat metering and controls, (3) district heating efficiency improvement, (4) building energy efficiency labeling programs and (5) retrofits of existing commercial buildings.
Among these programs, we found that the implementation of building codes provide by far the largest savings opportunity, leading to an overall 17% reduction in overall space heating and cooling demand relative to the baseline. Second are energy efficiency labels with 6%, followed by reductions of losses associated with district heating representing 4% reduction and finally, retrofits representing only about a 1% savings.