Energy institutions at different levels are central in just energy transitions as they develop and enact strategies. In recent years the UNFCCC, with its related bodies, and the European Union have paid more attention to justice issues across energy related policies. This is an important guidance for energy authorities at different levels, but there are still several challenges to just transformation, e.g. path-dependent institutional practices, including a strong techno-economic focus in energy policy-making and policy outputs. This calls for a critical scrutiny of energy institutions and how they understand and work with issues of justice. In this article we explore two energy institutions, The Swedish Energy Agency, and DG Energy of the EU Commission and their work on long term energy scenarios. With the help of institutionalist scholarship and literature on energy justice, we investigate how justice issues are understood in the work on energy scenarios and how institutional practices, norms and values might affect this work.Our first findings reveal a certain institutional inertia despite an increased awareness of energy-related social differences among policy-makers, resulting in a reproduction of existing techno-economic norms and knowledge.