The WHY Causal Model contributes to improve the understanding of the human decision factors leading to energy demand patterns in the residential sector. These models will be used to create a set of computer programs that form the WHY Toolkit. The Toolkit will be integrated with leading Energy System Models (ESMs) to develop five use cases that assess different policy scenarios.

The WHY Causal Model will allow to improve the understanding of the human decision factors leading to energy demand patterns in the residential sector. The Model will improve the forecasting accuracy of policy intervention impacts. Given the long-term projections needed to assess the emission targets set by the different policies, the Causal Model will allow for long-term evolution of various scenarios.

Traditional energy models are not able to correctly assess the impact that a certain policy might have on the energy demand at residential level. WHY builds a Causal Model to improve the understanding of human decision processes behind these demand patterns, enabling to accurately forecast how different policies impact the household energy consumption. Five use cases will be used to assess different policy scenarios with special focus on the EU Green Deal and the Renovation Wave policies.