 This paper reviews the existing literature on the individual level predictors of household energy usage. It examines two broad categories of variables sociodemographic factors such as income, employment status, dwelling type slash size, home ownership, household size, and stage of family life cycle, and psychological factors including beliefs and attitudes, motives and intentions, perceived behavioral control, cost-benefit appraisals, and personal and social norms. Despite an increasing body of research, the authors found that empirical evidence of the impact of these variables has been inconsistent and inconclusive. They argue that this inconsistency highlights the complexity of consumer behavior in this domain and suggest that a multitude of factors direct, indirect, or an interaction influence how householders consume and conserve energy. The authors propose that understanding these factors will advance both theory and practice and outline several important practical implications for policymakers and directions for future research. This article was authored by Alicia R. Fredericks, Karen Stenner, and Elizabeth V. Hobman. We are article.tv, links in the description below.