Leon Stille is managing director of New Energy Institute. New Energy Institute is focused on expert advice, education, and innovation, consulting for companies like BCG, Shell, TNO, Berq RNG and several investment firms. He is also key lecturer for renewable gas and hydrogen for New Energy Business School, expert speaker on energy transition topics for several universities (MBA energy transition of the University of Groningen and University of Rotterdam) and often speaks and moderates at key industrial conferences and events. He also holds several advisory positions at the European Biogas Association, Hydrogen Europe and committee member sustainability of the international gas union. Leon holds 3 patents on renewable gas purification and conversion.