The European Union had started preparing the ground for its “green” transition well before that the war in Ukraine forced it to change plans, re-orientating policy choices towards the fulfilment of short-term energy needs. However, despite Brussels’ prompt reaction through the launch of the REPowerEU plan, aimed at keeping the pace required to meet decarbonization targets, it is not clear yet how long it will take to overcome the current energy crisis, characterized by high prices of fossil fuels and the increasing likelihood of natural gas shortage. Is the EU fully equipped to face this critical moment and deliver the green transition? How are Member States coping with the current situation? Is it possible to strengthen the role of climate finance and channel more resources to the transition? What about the future contribution of alternative energy sources such as green hydrogen?