Gender considerations, such as the division of household labour and the coordination of everyday household practices, are important for the energy transition of households. Household labour involves everyday practices (e.g. cooking, laundry and caring for others) and practices of energy household labour (e.g. managing digital technologies and energy systems). Emerging smart energy technologies require energy flexibility and efficiency, thereby introducing new forms of household labour can have implications for the household which are not well understood. Through a literature review and some empirical insights from a European Horizon 2020 project, mental aspects of energy household labour are identified: practices of coordination and multitasking, remembering and anticipating, and powerful emotional labour which shapes the practices. Smart technologies and energy systems add more physical and mental labour to households due to the need for additional coordination and change of practices. This additional demand for coordination can exacerbate existing gender inequalities in the division of household labour: technological strategies and designs need to engage with this and reduce new burdens. Considerations for future research are proposed and a gendersensitive framework for understanding the transition of energy household labour is outlined.