Home Energy Efficiency and Subjective Health in Greater London

Area of Science:

• Environmental Science
• Public Health
• Energy Policy

Background:

• The UK aims for net-zero emissions by 2050, with home energy efficiency a key strategy.
• Government initiatives target improving home energy performance, such as Energy Performance Certificate (EPC) ratings.
• The link between home energy efficiency and occupant health requires further investigation.

Purpose of the Study:

• To explore the relationship between home energy efficiency, energy consumption, and self-reported health in Greater London.
• To analyze the impact of energy efficiency improvements on household energy use.
• To determine if energy efficiency measures offer health co-benefits, especially for vulnerable populations.

Main Methods:

• Secondary data analysis using EPC data (energy efficiency ratings, air infiltration rates) for Greater London.
• Matching EPC data with local area self-reported health and energy consumption data from the GLA LSOA Atlas.
• Employing regression models to assess the impact of energy efficiency on gas consumption and self-reported health.

Main Results:

• A 10-point increase in a home's energy efficiency (Standard Assessment Procedure - SAP) rating may reduce gas consumption by approximately 7%.
• A statistically significant positive association was found between energy efficiency and self-reported health in the lowest income quartile LSOAs.
• A significant positive association exists between self-reported health and air infiltration rates, indicating the importance of ventilation.

Conclusions:

• Home energy efficiency improvements can lead to substantial reductions in household energy consumption.
• Energy efficiency programs show potential to significantly benefit the health and wellbeing of lower-income populations.
• Maintaining adequate ventilation is crucial for realizing health co-benefits from energy efficiency measures in UK homes.