While numerous platforms have been developed to support climate action, structured evaluations of their design remain limited. This paper presents a novel assessment framework for evaluating climate change mitigation and adaptation policy platforms. The framework includes 43 criteria that are structured around nine design requirement categories, including transparency, ease of use, interactivity, and accessibility. It is applied to ten policy platforms developed under the EU Horizon 2020 programme. Results show that while most of the examined platforms perform strongly in transparency, communication of complex information, and education, they consistently underperform in areas such as active maintenance, security, and accessibility. These findings highlight key areas for improvement by platform developers and funders. In parallel, they demonstrate the framework's flexibility and value as both an evaluation tool and a design guide for future platforms.

Achieving the European Union’s vision of climate neutrality by 2050 dictates the need to transform the role that citizens can play in decarbonizing the energy system. Yet, “which citizens to involve in this process,” “when to involve them,” and “how to do so fairly and effectively,” are questions that still remain unclear to both experts and policymakers. Energy citizenship has been discussed as a concept that has the potential to galvanize the public for the energy transition. This potential has yet to be fulfilled, as there is a need to connect theory and concepts to the realities, challenges, and opportunities of the lives of citizens, under diverse circumstances. In this perspective, we argue that the concept of energy citizenship and its potential for contributing to low carbon transitions should be studied within a research framework that aims to produce transformative knowledge. We also introduce such a new transdisciplinary framework for creating transformative knowledge to explore and address questions relevant to the concept of energy citizenship. Our framework aims to produce knowledge that can be used to mobilize decarbonization actions for both individuals and collectives, by: (i). integrating different scales of analysis and action, i.e., at individual, collective, and national/ regional/ global levels, (ii). reconceptualizing the role of research and researchers, and finally, (iii). striving to be inclusive in a meaningful and innovative way.

Citizens are expected to play a significant role to the current energy transition in Europe, such as through prosumerism and collective initiatives for energy efficiency. While there are many platforms for domestic energy analytics and for engaging citizens and transition stakeholders on energy topics, context-specific information is frequently lacking. This article outlines the development of an Interactive Policy Platform that aims to provide contextualized, impact-driven, and ready-to-use information on the role of citizen initiatives in the energy and low-carbon transition in Europe. Specifically, it will help researchers, policymakers, and citizens to explore different dimensions of energy citizenship, understand the decarbonization potentials of diverse clusters of citizens, and identify the conditions under which citizen-led energy initiatives are currently operating. The Platform will be co-designed together with a sample of its future users, ensuring the usability of its interface and the relevance of the provided information. Ultimately, the Platform is envisioned to help transition stakeholders understand and support initiatives related to energy citizenship around Europe, thus contributing to the EU's promise of a just and inclusive decarbonization.