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Impacts of energy-efficiency investments on internal conditions in low-income households

机译：节能投资对低收入家庭内部条件的影响

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Living in cold conditions poses a risk to health, in particular to low-income, fuel-poor households. Improving the energy efficiency of the housing stock may bring multiple positive health gains through improved indoor temperatures and reduced fuel consumption. This study used a multilevel interrupted time-series approach to evaluate a policy-led energy-performance investment programme. Long-term monitoring data were collected for intervention and control households at baseline (n=99) and follow-up (n=88), creating a dataset with 15,771 data points for a series of daily-averaged hydrothermal outcome variables. The study found that the intervention raised indoor air temperature by on average 0.84K as compared with control households, thereby bringing the majority of indoor temperature measurements within the healthy' comfort zone of 18-24 degrees C, while average daily gas usage dropped by 37%. External wall insulation was the most effective measure to increase indoor air temperature. The greatest increases were found in the evening and at night, in the bedroom, and in British steel-framed buildings. No evidence was found that the intervention substantially increased indoor relative humidity levels when accompanied by mechanical ventilation. The study concludes that the multilevel interrupted time-series approach offers a useful model for evaluating housing improvement programmes.
机译：生活在寒冷的条件下会对健康构成威胁，特别是对低收入，燃料匮乏的家庭。通过提高室内温度和减少燃料消耗，提高房屋的能源效率可以带来多项积极的健康益处。这项研究使用了多级中断时间序列方法来评估由政策主导的能源绩效投资计划。在基线（n = 99）和随访（n = 88）收集了用于干预和控制家庭的长期监测数据，创建了一个包含15771个数据点的数据集，用于一系列日均热液结果变量。研究发现，与对照家庭相比，该干预措施将室内空气温度平均提高了0.84K，从而使大多数室内温度测量值处于18-24摄氏度的健康舒适范围内，而平均每日燃气使用量减少了37 ％。外墙保温是提高室内空气温度的最有效措施。在晚上和晚上，卧室和英国钢结构建筑中发现的增幅最大。没有证据表明，在进行机械通气的同时，干预措施会大大增加室内的相对湿度水平。该研究得出的结论是，多级中断时间序列方法为评估住房改善计划提供了有用的模型。

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