Health impact of home energy efficiency interventions in England, 2000-2010
PHE ePoster Library. Wilkinson P. Sep 13, 2016; 138049; 32
Prof. Paul Wilkinson
Prof. Paul Wilkinson
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Abstract
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Abstract Introduction: Home energy efficiency (HEE) investments are important because of their relevance to tackling winter mortality/morbidity and the transformative changes needed to meet climate change abatement targets. We analysed the relationship between such investments and mortality using a national database of HEE measures.Methods: Data on HEE interventions (loft and cavity wall insulation, improved glazing etc) in dwellings in England was derived from the Home Energy Efficiency Database for 2000-2010. The impact of such interventions on standardized indoor temperature (SIT), the temperature on a day with maximum outdoor temperature of 5 °C, was estimated from empirical relationships and building physics modelling, and linked to postcoded national mortality and daily meteorological data.Results: The pre-intervention SIT for the majority of dwellings was between 17 and 18.4 °C. Energy efficiency retrofits were estimated to increase SIT by a mean of only around 0.1 °C (maximum 0.8°C), a temperature change estimated to reduce cold-related mortality by fractions of a percent. This impact is at the limit of detection in empirical data and potentially smaller than the long term effects of changes to indoor air quality from altered ventilation.Conclusions: Recent energy efficiency interventions in the housing stock in England are associated with modest changes in indoor temperatures and cold mortality risk, though uncertainties remain in the quantification of such impacts. External funding details This project was funded by the National Institute for Health Research Public Health Research Programme (project number 11/3005/31).
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