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首页> 外文期刊>Journal of Cleaner Production >Cost-benefit analysis for Energy Efficiency Retrofit of existing buildings: A case study in China
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Cost-benefit analysis for Energy Efficiency Retrofit of existing buildings: A case study in China

机译：现有建筑节能改造的成本效益分析：以中国为例

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Energy Efficiency Retrofit (EER) of existing buildings is a key program for improving building energy efficiency in northern regions of China. This paper presents a methodological framework to conduct an economic cost-benefit analysis for EER projects, based on the calculation of costs and benefits over life cycle. By conducting a case study of a retrofit project located in Huixin Western Street Residential Area, Beijing, China, this research empirically examines its economic sustainability. The research found that in China, retrofit of existing buildings generally lack of attractiveness to investors from an economic perspective. The retrofit of heat source and outdoor heating pipe networks is cost effective, whilst buildings envelopes retrofit is not economically beneficial. For building envelopes retrofit, if replacing windows using appropriate material, retrofit of external windows represents higher cost effectiveness than that of external walls. By applying sensitivity analysis, the research further discussed the effects of relevant factors on the economic viability of retrofit projects, and found that energy price is the most sensitive factor, followed by initial costs and energy conservation rate. The selection of retrofit materials also greatly influences the economic outcomes. This research offers directions for policy makers and managers to develop incentive mechanisms and management interventions to promote the implementation of the retrofit program. (C) 2018 Elsevier Ltd. All rights reserved.
机译：现有建筑物的能源效率改造（EER）是提高中国北方地区建筑物能源效率的一项重要计划。本文基于计算整个生命周期的成本和收益，提出了一种方法框架，对EER项目进行经济成本效益分析。通过对位于中国北京汇新西街住宅区的改造项目进行案例研究，该研究从实证角度考察了其经济可持续性。研究发现，在中国，从经济角度来看，对现有建筑物进行改造通常缺乏对投资者的吸引力。热源和室外供热管网的改造具有成本效益，而建筑物围护结构的改造在经济上没有好处。对于建筑围护结构的改造，如果使用适当的材料替换窗户，则外窗的改造比外墙的改造具有更高的成本效益。通过敏感性分析，研究进一步讨论了相关因素对改造项目经济可行性的影响，发现能源价格是最敏感的因素，其次是初始成本和节能率。翻新材料的选择也极大地影响了经济效益。该研究为政策制定者和管理者制定激励机制和管理干预措施以促进改造计划的实施提供了指导。 （C）2018 Elsevier Ltd.保留所有权利。

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