The need for energy system change in order to address the energy ‘trilemma’ of security, affordability and sustainability is well documented and requires the active involvement of individuals, families and communities who currently engage with these systems and technologies. Alongside technical developments designed to address these challenges, alternative ways of living are increasingly being envisaged by those involved in low-impact development. This article draws on data from a qualitative longitudinal study involving residents of a low-impact ecovillage in West Wales, UK, (...) in order to consider how the successful meeting of their planning targets has not been without personal and social troubles, which are absent from official measures of the project's success. We argue that, in exploring issues pertaining to scaling up, policy timescales and the legacy of such projects (such as inspiring others), insights drawn from this study have a wider relevance beyond the specific case site. (shrink)