More significant reductions in residential primary energy consumption and in space heating in particular, can contribute
to achieving climate change and energy efficiency objectives. Project information from demonstration projects
is now becoming available for highly energy-efficient renovation concepts.
The goal of this research is to understand how owner-occupants can be persuaded to apply far-reaching energysaving
renovations of single-family houses. To this end, the research examines drivers and barriers of owners to adopt
highly energy-efficient renovation concepts. Theory on decision processes in innovation diffusion is used, in order to
examine the adoption of integrated concepts to achieve high energy performance. Belgian case studies (different building
typologies) were examined. Adoption drivers and barriers perceived by owner-occupants are analysed. This leads
to improved understanding of characteristics that can persuade future adopters. Possible measures are discussed to
overcome barriers in the introduction phase of innovation diffusion, and are illustrated more in detail with a case study.
The research shows that especially expectations of improved comfort provide an opportunity for the market entry of
integrated concepts. Owners, architects and contractors could benefit from increased attractiveness, competitiveness,
affordability and availability of highly energy-efficient renovations. Holistic approaches (stronger coordination and clustered
renovation concepts), higher skill competence (education) and improved communication (actor networks, significant
economic incentives) are recommended.
Keywords : Renovation, Energy Efficiency, Adoption, Innovation Diffusion, Demonstration Projects.
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