Building stock dynamics and its impacts on materials and energy demand in China

TitleBuilding stock dynamics and its impacts on materials and energy demand in China
Publication TypeJournal Article
Year of Publication2016
AuthorsLixuan Hong, Nan Zhou, Wei Feng, Nina Khanna, David Fridley, Yongqiang Zhao, Kaare Sandholt
JournalEnergy Policy
Volume94
Pagination47 - 55
Date Published07/2016
ISSN03014215
KeywordsAnnual new construction, Building floor space, energy demand, materials, retrofit
Abstract

China hosts a large amount of building stocks, which is nearly 50 billion square meters. Moreover, annual new construction is growing fast, representing half of the world's total. The trend is expected to continue through the year 2050. Impressive demand for new residential and commercial construction, relative shorter average building lifetime, and higher material intensities have driven massive domestic production of energy intensive building materials such as cement and steel. This paper developed a bottom-up building stock turnover model to project the growths, retrofits and retirements of China's residential and commercial building floor space from 2010 to 2050. It also applied typical material intensities and energy intensities to estimate building materials demand and energy consumed to produce these building materials. By conducting scenario analyses of building lifetime, it identified significant potentials of building materials and energy demand conservation. This study underscored the importance of addressing building material efficiency, improving building lifetime and quality, and promoting compact urban development to reduce energy and environment consequences in China.

DOI10.1016/j.enpol.2016.03.024
Short TitleEnergy Policy