Comparing the German exit of nuclear and coal: Assessing historical pathways and energy phase-out dimensions

It is crucial to understand the dynamics of phase-outs of non-sustainable energy carriers to accelerate the decarbonization of the economy in hindsight of the climate crisis. Taking the German example, the exit of nuclear energy as a successful policy is compared to the phase-out process of coal power to provide new insights on such policy change. The historical pathway of each phase-out policy is examined as the basis for the comparison. In general, the German nuclear phase-out is driven by a strong anti-nuclear sentiment in the public and as a political strategy whereas for the exit of coal the socio-ecological movement, a severe drought in 2018 and a deep institutional academic and non-academic knowledge transfer for the climate crisis were the main drivers. The examination together with the deductive thematic analysis enables then to identify commonalities and differ-ences of the two phase-out policies that manifest themselves in the following dimensions: institutionalization, visibility of impacts, public image, and incumbency. The ethics committee of the German nuclear phase-out in 2011 was a pivotal institutionalized actor in fostering the final exit. Its reasoning resonated in the public delightfully as it changed nuclear powers image and provided the argumentative pathway for the then chancellor Merkel to turn around her energy politics. Based on the acquired learnings, a convocation of an ethics committee to evaluate the moral implications of the climate crisis is able to foster the acceleration of future fossil fuel phase-outs.