In our previous publication “Assessing the effectiveness of energy efficiency measures in the residential sector gas consumption through dynamic treatment effects: Evidence from England and Wales”, we analyzed the impact of the implementation of energy efficiency (EE) measures, in particular loft insulation and cavity walls, on household gas consumption up to five years after installation. Upon review, we realized that our phrasing, specifically the term “energy savings disappear,” might have led to misunderstandings regarding our findings. In this commentary, we clarify that our results indicate reductions in the level of energy (gas) savings achieved, two to four years after the implementation of the energy efficiency measures. The adoption of EE measures is associated with significant reductions in household residential gas consumption one year after their implementation, as we expressed in Peñasco and Anadon (2023). However, the level of savings decreases four years after the retrofitting of cavity wall insulation measures and two years after the installation of loft insulation, generating increases in consumption with respect to the maximum level of savings achieved, i.e., rebounds in consumption. We find that, after five years, energy savings from loft installations are still positive, in the range of 4–5 % compared to the control group—a level of savings that represents a rebound of about 20–25 %, when compared to the maximum level of savings that occurs two years after installation. For cavity walls, after five years gas savings are in the range of 6–9 % compared to the control group, with rebounds of about 10–13 % compared to the maximum savings. This clarification is crucial to prevent a misinterpretation of the results in future research and policy making.

中文翻译：

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关于“通过动态处理效应评估住宅部门天然气消耗的能源效率措施的有效性：来自英格兰和威尔士的证据”的评论


在我们之前的出版物“通过动态处理效应评估住宅部门燃气消耗中能源效率措施的有效性：来自英格兰和威尔士的证据”中，我们分析了实施能源效率 （EE） 措施，特别是阁楼绝缘和空腔墙，对安装后长达五年的家庭燃气消耗的影响。经过审查，我们意识到我们的措辞，特别是“节能消失”一词，可能会导致对我们的研究结果产生误解。在这篇评论中，我们澄清了我们的结果表明，在实施能源效率措施后的两到四年内，实现的能源（天然气）节约水平有所降低。正如我们在 Peñasco 和 Anadon （2023） 中所表达的那样，采用 EE 措施与实施一年后家庭住宅燃气消耗量的显着减少有关。然而，在改造空腔墙保温措施四年后和安装阁楼保温措施两年后，节省水平下降，导致消耗相对于实现的最大节省水平（即消耗反弹）增加。我们发现，五年后，阁楼安装的节能量仍然是正的，与对照组相比在 4-5% 的范围内——与安装后两年的最高节能水平相比，这一节能水平反弹了约 20-25%。对于空腔墙，五年后，与对照组相比，节气量在 6-9% 的范围内，与最大节气组相比，回弹量约为 10-13%。这种澄清对于防止在未来研究和政策制定中对结果的误解至关重要。