Potential Analysis of Energy Conservation and Emission Reduction of Existing Buildings Retrofit in Chongqing in Medium and Long Term

Based on current situation and relative plan of energy efficiency of existing buildings, the authors aim to explore the potential of energy conservation and emission reduction of existing buildings retrofit in Chongqing, in medium and long term (2016-2035). Scenario analysis is used to predict energy conservation of existing residential buildings and commercial buildings from 2016 to 2035. The authors create three potential future policy and market scenarios, which include baseline scenario as the Twelfth Five-year (2011-2015) plan, optimism scenario and pessimistic scenario. The results showed that there exists great potential for energy conservation of existing buildings in Chongqing. In the Sixth Five-year (2031-2035), reasonable policy and market intensify will cause energy conservation potential to rise up to 117,100 tons of SCE, and reduce 353,800 tons of CO₂. Existing commercial buildings are the key to promote building energy conservation, while existing residential buildings with increasing energy intensity should be an important issue in long term.