Measurement of China’s Building Energy Consumption from the Perspective of a Comprehensive Modified Life Cycle Assessment Statistics Method

This paper proposes a new life cycle assessment (LCA) statistics method to calculate the energy consumption of Chinese buildings from perspective LCA under sustainable supply chain system. We divide into materialization stage, construction and operation stage. Based on method, we obtain following findings. First, growth total building has slowed down since 2014, its share levels off, remaining at about 40%. In 2018, stages materialization, construction, account for 34.02%, 4.65%, 61.33% in consumption, respectively. Second, are main sources whole chain. Energy stage been declining year by due impact energy-saving policy. Moreover, find that increasing year. Finally, buildings, plays dominant role. puts forward some managerial suggestions relevant departments provides measures optimize industry.