The attack on Ukraine and the global energy crisis that ensued was one of the European Union’s greatest challenges since its formation. Europe had to respond in a united and decisive way to save energy, accelerate the clean transition, and diversify supply to reinstate its energy security and autonomy. Its rallying efforts were a success, easing pressure on energy markets and boosting clean renewable energy supply, such that the European Green Deal is no longer a necessity for energy security and climate targets, but a core pillar for European competitiveness and economic strategy. However, energy markets remain vulnerable, and inflation is still high. We must continue to diversify our energy sources to ensure affordable and accessible energy for European households and businesses and remain a key global player. What challenges remain to the EU’s energy security? How can Europe further diversify its energy imports and who will become the key players? What will a modernized energy and climate governance policy look like, beyond 2030?