An evolutionary innovation perspective on the selection of low and zero-carbon technologies in new housing

The Code for Sustainable Homes will require new homes in the UK to be ‘zero carbon’ from 2016. Drawing upon an evolutionary innovation perspective, a gap in the literature is addressed by investigating which low and zero-carbon technologies are actually being used by house builders, rather than the prevailing emphasis on the potentiality of these technologies. Using the results from a questionnaire, three empirical contributions are made. First, house builders are selecting a narrow range of technologies. Second, these choices are made to minimize the disruption to their standard design and production templates (SDPTs). Finally, the coalescence around a small group of technologies is expected to intensify with solar-based technologies predicted to become more important. A challenge is presented to the dominant technical rationality that assumes technical efficiency and cost benefits are the primary drivers for technology selection. These drivers play an important role, but one which is mediated by the logic of maintaining the SDPTs of the house builders. This emphasizes the need for construction diffusion of innovation theory to be problematized and developed within the context of business and market regimes constrained and reproduced by resilient technological trajectories.