摘要:Based on current situation and relative plan of energy efficiency of existing buildings, the authors aim toexplore 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 existingresidential buildings and commercial buildings from 2016 to 2035. The authors create three potential futurepolicy 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 energyconservation of existing buildings in Chongqing. In the Sixth Five-year (2031-2035), reasonable policy andmarket intensify will cause energy conservation potential to rise up to 117,100 tons of SCE, and reduce 353,800tons of CO2. Existing commercial buildings are the key to promote building energy conservation, while existingresidential buildings with increasing energy intensity should be an important issue in long term..