Energy consumption and its ecological footprint within European cities is simply too high. This problem requires large scale behavioural changes. However, this is easier said than done: we can barely equip people with the knowledge necessary to use energy responsibly in their daily lives. The CODALoop project aims to resolve this problem. The project will marry the disciplines of information science, cognitive science, and the social sciences, in order to conduct large scale real life experiments in urban neighbourhoods. The main aim of this project is explore how we can change peoples’ behaviour so that they reduce their energy consumption and use energy responsibly. This will be done through a web based platform, which will enhance individual and community learning. This in turn will inform policies which aim to intelligently use big data. The ultimate aim of the project is to create a marketable software platform for data-sharing and social interaction regarding energy use. The project will be conducted in the cities of Amsterdam, Graz, and Istanbul.