Headline: Energy spaces: bridging scales and standpoints of just energy transitions

This editorial to the special issue: Transregional Configurations of Just Energy Transitions explores how discourses on justice are interrelated and influence transformation paths at different levels of society. We propose a spatial perspective that puts energy transitions and place-based research into context. For many years, discussions about the transformation of the energy sector focused on the climatological necessity of phasing out fossil fuels and on the technical and economic feasibility of doing so. In this special issue, we aim to reverse this logic: phasing out fossil fuels has become feasible, but phasing out the political, cultural, and social legacy of fossil fuel is a prerequisite for a just transition. The collection of articles contributes to place-based research, focusing on peripheral and fossil fuel producing regions in the global North and South. We also broaden the relational perspective on regional energy transitions by closely linking spatial and moral dimensions. The articles and this editorial show that the emergence of a region as a political arena or even as an institutional actor in climate and energy policy coincides with spatially defined (in)justice claims. In practical terms, this also means that a broader range of justice claims and regional spaces must be critically examined and incorporated into the design of energy transformations.