This report reviews the literature on the impact of real-time information provision on consumer decision-making. In addition, it describes the results of a study in which about 7000 households in Ontario, Canada were provided with in-home displays linked to smart meters that provided real-time feedback on electricity consumption. The results show that electricity consumption declines by about 3% as a result of information feedback, that the reduction in demand is sustained for at least five months, and that it is highly correlated with outdoor temperature.