ENCHANT – Energy Efficiency through behaviour Change Transition – is a project that aims to support the energy transition by testing the impact of interventions affecting energy consumption behaviour on a large-scale across Europe. The interventions will be developed, fitted, and tested with the objective to unlock an energy efficiency potential in the public, through behavioural change. ENCHANT will combine the data gathered from implementing these interventions, with a re-analysis of already existing data, in an empirically informed decision tool for impactful campaign design targeting energy-efficiency, relevant for a number of public and private actors (e.g. policymakers). www.enchant-project.eu.