采暖区既有建筑节能改造外部性分析与应用

Externality Analysis and Application of Energy Efficiency Reconstruction of Existing Buildings in Heating Regions

采用外部性理论和建筑节能理论,界定了采暖区既有建筑节能改造的外部性类型;建立了采暖区既有建筑围护结构改造外部性度量公式、热源热网改造外部性度量公式以及节能改造总的外部性度量公式,并运用公式对包头市口岸小区改造项目的环境外部性进行了测算.结果表明,采暖区既有建筑节能改造存在较强的外部性,而测算既有建筑节能改造项目的外部性正是国家制定相关经济激励政策所需要的依据.

Based on externality theories and buildings＇ energy efficiency theories, the externality of energy efficiency reconstruction was classified into different types from four aspects. Then, a set of formula was proposed for computing the externality of buildings＇ enclosure structure reconstruction, heating networks and heating production plant reconstruction, and comprehensive reconstruction. The formulas were used to compute the environmental externality of Kouan residential energy efficiency reconstruction project in Baotou city. Results show that there is significant externality for energy efficiency reconstruction of the existing buildings. The findings are useful for governments at all levels to make economic incentive policies about energy efficiency reconstruction of existing buildings.