Ian Hamilton is Professor of Energy, Environment and Health at the UCL Energy Institute. His research is focused on the nexus of the energy supply-demand system, sustainable building technologies, sustainable built environments, urban environmental quality, indoor environment and health. Prof Hamilton's research has included: investigation on the impact of energy efficiency interventions on energy demand in the residential stock; analysis of temporal and spatial energy use within the urban environment and its impact on the local climate; the trends and impact of energy use on indoor environment; residential stock energy use modelling; and the integration of renewable energy into the urban form.