The ePLANET project is a Coordination and Support Action cofounded by the European Commission through Horizon 2020 program. This project aims to reframe the current governance model and design and establish a new clustering governance model to facilitate the deployment of energy transition projects, creating and improving coordination between different municipalities acting together. This needs to be based on a digital framework to share harmonised information, facilitating the adoption of coordinated energy transition actions by the European public sector. All these targeted objectives will give the needed support for the energy transition decision-making process and its practical implementation. Considering the outcomes from tasks T2.1 and T2.2, this document aims to design a new clustering governance methodology and specifications of the deployment procedures. Moreover, this document will define new key actors and definition of their roles, responsibilities and skills to be provided, depending on the public authority level. The methodology followed to carry out this deliverable is based on in-person meetings with each partner and through specific surveys. The three pilot regions, the Region of Crete in Greece, the Zlín region in the Czech Republic and the province of Girona in Catalonia, have been analysed to understand how they implement ET projects and their mechanisms to achieve it. Previously, the first draft of this document was submitted on 30th June 2022 (M10). The first draft was an overall analysis of the current status of the three pilot areas and a first glimpse and approach to clustering governance. Likewise, this final document analyses and explains in much more detail how each pilot region is currently governed and all the actors involved in the process of the energy transition deployment. After this comprehensive analysis, this deliverable also proposes a new methodology for clustering governance by defining new actors in the overall process of ET deployment, in each of the pilot region and involving its related country at national political level. The success of this implementation will depend on the real commitment from political governments. Ultimately, the energy transition’s success will depend on coordinated efforts at all levels of society. By working together, governments, industry, and international organisations, through clustering governance, can accelerate the adoption of renewable energy sources and the execution of energy transition plans.