Many energy consuming household activities are collectively organized, while in information campaigns for energy conservation they are regarded as planned and performed by individuals in isolation. This article aims at scrutinizing this mismatch by analytically examining how energy-consuming activities are allocated and organized among household members and explore the implications for energy consumption. Time-geographic concepts ground for the investigation and empirical illustrations are taken from a uniquely rich historic Swedish pilot study on time-use from 1996. The pilot offers time-diaries from members of the same households which allow analysis on activity allocation in the households. We present a conceptual framework with two overarching principles of activity allocation; project division and project sharing. Visualizations of daily activity sequences from time-diaries in the pilot study are used to analyze the household project providing meals. The overall result indicates that the ways households allocate and coordinate energy consuming activities matter to energy use. Consequently, it is important to consider the household with its members for understanding daily energy consuming activities and peoples possibilities to conserve energy. If reconfigured to fit into the interlinked everyday life activity sequences of household members, energy advice and information campaigns might improve the opportunities to reach their targets. (C) 2015 Elsevier Ltd. All rights reserved.