To most people energy is still a low interest commodity. The transition to a sustainable energy system requires involvement, commitment and behavioural change. How can we achieve that using theory and research on human behaviour in this context? How should projects and campaigns be designed? The tool “Behavioural Lenses” is recently developed by Hogeschool Utrecht and creative partners to help designers put theoretical insights from the behavioral sciences into practical use. We will illustrate the possibilities of this tool for the energy transition, discussing several current approaches concerning energy transition.