G4M is a common project between Univ. Gustave Eiffel and Université de Lyon for the development of a platform for smartgrids and mobility applications. The site of Transpolis (small prototype city) and the campus of La Doua will be a testing ground for a wide system that includes vehicles, charging, traffic, renewable energy, buildings and smart network. This project is supported by national and local funds (CPER: Contrat Plan Etat Region).