Danish participation in IEA Annex 70 Building Energy Epidemiology: Analysis of Real Building Energy Use at Scale

Energy policy is often being made on the basis of building stock models. Most of these models presently rely solely on building component characteristics and standard assumptions. This means that the current, theoretically-based models often ignore the complex interactions between technological, social, economic, behavioural and physical factors; factors which influence the energy consumption in buildings significantly.

IEA annex 70 will study how real building energy use data can be collected and used, to model energy consumption in buildings more accurately. Using real building energy use data in a multidisciplinary approach, it is possible to study the complex interactions, which lead to discrepancies between modelled and actual energy consumption. This will help policy makers, as well as the building industry, making more qualified decisions.

IEA annex 70 is divided into three primary subtasks:

- Subtask A: User engagement

- Subtask B: Data mechanisms and foundations

- Subtask C: Building stock modelling and analysis

The Danish delegation will primarily contribute to subtask B and C; specifically identifying and evaluating available data, as well as reviewing the data collection process. Also, methods for aggregating data will be assessed and recommendations for best