After 15 years of Energy-environment Efficiency within advanced international B2B firms, I am now developing transdisciplinary research to enable cities and all economic activities to work hand in hand and organise a new path towards energy-environment efficiency. I participated in several research projects about Local Energy and Climate Action Plan. Since beginning of this year, I am very active in launching and organizing a new Institute for Energy Efficiency gathering 28 International firms and Labs. Business Model for EE is my very personal research. German, English, French spoken, some Japanese and Spanish too.