The Efficacy of Energy Efficiency: Measuring the Returns to Home Insulation

Linde Kattenberg, Nils Kok and Piet Eichholtz

ERES from European Real Estate Society (ERES)

Abstract: Energy efficiency in the housing market is considered an important tool to reduce energy consumption and carbon emissions, as well as to enhance national energy independence and protect consumer balance sheets. Home insulation plays an important role in improving the energy efficiency of a home. However, the impact of insulation measures on actual gas consumption is typically based on engineering predictions, and the efficacy of insulation measures is subject to debate. This study exploits a unique home insulation sample, combined with detailed household data on actual gas consumption before and after these interventions, and information on the socio-economic characteristics of occupants. Using a difference-in-difference approach, we document that home insulation reduces gas consumption by about 20%, on average, both for owner-occupied and rental homes. For the latter, the treatment is plausibly exogenous. We find no evidence of a temporal rebound effect: the reduction in gas consumption is consistent up to ten years after the intervention. At 2022 gas prices, the average treatment effect translates into an €866 reduction in the annual gas bill, and an average rate of return of 41.6% on the initial investment.

Keywords: Energy Efficiency; insulation; Residential (search for similar items in EconPapers)
JEL-codes: R3 (search for similar items in EconPapers)
Date: 2023-01-01
New Economics Papers: this item is included in nep-ene, nep-env and nep-ure
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Persistent link: https://EconPapers.repec.org/RePEc:arz:wpaper:eres2023_57

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