With 470 billion euros committed by the European Commission and ambitious plans (9 billion for Germany, 7 billion for France), there is no longer any doubt that hydrogen is considered today as a pillar for the energetic transition. It is also an integral part of the famous Green Deal, desired by Brussels. And if some try to oppose this energy vector to battery electricity, it is clear that a project of common interest (IPCEI) has been launched for hydrogen with the help of 22 countries. Beyond considerations of sovereignty, the objective is to encourage the emergence of world-class manufacturers to play a major role in the markets. Europe must position itself against competitors such as China, South Korea, and Japan, which have clearly made hydrogen one of their priorities and which have taken the lead in this area. The whole question is how to articulate local initiatives (example in France with Bourgogne-Franche-Comté which has strong ambitions and capitalizes on 20 years of expertise) with the national strategies decided by a growing number of countries of the Union and of course the European authorities. The territories have a role to play. They may even decide to collaborate together, nationally or even internationally.