Benoît Calatayud has worked 5 years for the French national regulation authority. He mainly contributed to developing networks tariffs. He was in charge of a part of the transport and distribution system operators' regulatory frameworks. He knows very well the European energy market and its actors. He is now managing specialist for the French investment bank, Bpifrance, where he is evaluating innovative projects related to the energy transition. He is a specialist of the hydrogen sector.