Our research investigates how domestic buildings and their occupants use energy and how they interact with building systems in order to adjust their comfort.

Ventilation rates are a key missing element in the prediction of domestic energy performance. Off the shelf energy monitoring systems do not monitor CO2 levels.

The CO2 decay profiles for typical building types are attributed to a combination of user behaviour and the theoretical technical performance of the buildings. Airtightness in dwellings is not simply predicted by the energy rating of the dwelling, underlining the need to understand people’s behaviour in order to predict energy performance in-use.

The interpretation of data within the context of specific building properties and occupancy can inform design and policy regarding domestic building retrofits and managing demands on the electrical distribution network.