We propose a programme of research leading to the establishment of a new methodology for surveying household energy use nationally, to complement existing methods (e.g., the English Housing Survey and regional equivalents), which leverages the rollout of Smart Meters to achieve cost-effective, detailed understanding of energy use behaviours. The key enablers of this new methodology are: 1) the Smart Meters themselves, 2) advances in semi-supervised disaggregation methods which can infer the behaviours that result in energy use, and 3) other wireless sensors placed in some households to bootstrap the disaggregation methods. The output will be twofold: a validated scalable novel survey method suitable for national rollout, providing significant additional data on energy consumption in UK homes; and 2) an assessment of which variables can be effectively surveyed with this method.