Monitoring the energy consumption and daily mobility over long time Revisiting the method of panel in the era of the generalization of the smartphone

The individual seems to be the keystone for most of the << energy transition >> policies currently developed in France. Individual changes are waited in the sense of a reduced use of car and a smaller consumption for in- home uses. That being said, most of the methods for observing daily mobility and energy consumption are based on cross-sectional approaches. These methods are limited in the understanding of changes or recurrences of energy daily practices. The TELEM project presented in this paper targets the setting up of a panel survey based on a specific smartphone application allowing a semi-automatic monitoring of daily mobility ( modes, places, motives) and in-home energy consumptions.