The European Commission launched the REPowerEU plan in May 2022 torespond to the global energy market disruption and energy security crisis causedby Russia’s invasion of Ukraine.1 The plan aims at lowering energy demand anddiversifying energy supplies in order to reduce Europe’s overdependence onRussian energy imports, while boosting decarbonisation in the EU. The core ideaof the REPowerEU plan is to phase out imports of Russian fuels, while elevatingdecarbonisation to an energy security strategy, instead of creating competitionbetween the energy security and energy transition pillars. Therefore, the mostchallenging aspect of this strategy is to reconcile short-term diversificationneeds, which require securing significant additional volumes of natural gas,with long-term decarbonisation objectives.