Nous présentons un modèle de calcul des consommations énergétiques attendues à la suite d'une opération de renouvellement urbain. Ce modèle, qui utilise les données désagrégées du recensement de la population, estime les consommations attribuables au logement, à la mobilité domicile-travail, ainsi qu'aux autres mobilités. Il est désagrégé spatialement à la commune, et en partie à l'IRIS, qui est une division infra-communale, et prend en compte les caractéristiques socioéconomiques des futurs résidents attendus du projet. Il permet de comparer les futures consommations énergétiques du projet à celles de la commune, et d'évaluer les bénéfices éventuels d'un investissement plus important dans les transports en commun ou dans l'efficacité énergétique des bâtiments. L'application de notre modèle sur deux municipalités a priori similaires montre son intérêt pour aider à définir des projets efficaces sur le plan des consommations énergétiques. Keywords: energy efficiency, modelling, urban renewal operations 1. INTRODUCTION – We present in this paper a method to evaluate the potential for energy consumption reduction in urban renewal projects. Our method integrates three major issues for energy consumption reduction: building, mobility and lifestyle. We believe that this integrated method could secure better decisions in urban renewal projects. It has been implemented in the IMPETUS model in the framework of a research project involving researchers, engineers, property developers and cities. Energy efficiency is a key objective for Europe because of the increasing cost of energy, the European dependence on fossil energy and the associated geopolitical risk. In 2008 the European Council adopted the climate and energy package that defines the 20-20-20 targets: by 2020, the 27 member states must implement policies to reduce by 20% the emissions of greenhouse gases (GES), increase by 20% the energy efficiency in Europe and reach 20% of renewable energy in energy consumption in Europe. Energy poverty (powerty) is also rising all over Europe. As in other European countries, French policies have failed in their attempts at decreasing energy consumption for various reasons. The energy bill for France went above overall French balance of payment deficit in 2012 at 70 Bn€ and more than 8 million French citizens fight against powerty (Devalière et al. 2011) Overlooking the specificities of the territories on which national regulations are implemented is probably the most prominent reason for this failure. Car dependency and the energy consumption related to car usage vary according to the spatial