Domestic Energy Efficiency Measures, Adopter Heterogeneity and Policies to Induce Diffusion

Programmes for carbon emissions reductions invariably require households to adopt energy efficiency measures such as heating controls. Thus understanding why households adopt efficiency measures and what policies can successfully increase their adoption (induced diffusion), is critically to energy policy. This study addresses these questions by developing research hypotheses grounded in diffusion and finance theory, and the literature on the barriers to energy efficiency. By employing two cross sectional surveys of UK consumers, the adoption of multiple technologies is assessed allowing for a more comprehensive understanding of adopter heterogeneity. The empirics indicate that numerous factors are important in understanding adoption including; inertia, tenure variables, a desire to save money and/or increase comfort, replacement effects, adopter characteristics as prescribed by diffusion theory and policy interventions. In the latter case, investment support schemes appear to have induced diffusion while information based instruments have had no effect