The Danube region holds great potential for the sustainable generation and storage of renewable energies. So far, however, this region is heavily dependent on energy imports, while energy efficiency, diversity and the share of renewable energies are low. In line with the EU 2030 climate targets and the EUSDR PA2 targets, DanuP-2-Gas will drive transnational energy planning by promoting renewable energy generation and storage strategies in the Danube region through the coupling of the electricity and gas sectors. DanuP-2-Gas will bring together energy agencies, economic actors, authorities and research institutes via the Danube Energy Platform. The platform, developed during the DTP project ENERGY BARGE, will be completed with more details such as unused biomass and energy infrastructures not yet collected. In addition, a feasibility study will determine suitable locations for the cross-sectoral hubs that will bring together the two unused resources in the Danube region. Unused organic residues (e.g. straw) are processed into biochar to facilitate transport along the Danube and serve as a basis for the production of syngas. By adding hydrogen from excess renewable energy, this synthesis gas can be upgraded to renewable natural gas. This enables excess energy to be stored in the existing gas network and increases energy security and efficiency. All required resources are available in the Danube region and in the 10 partner countries. Therefore, a transnational approach along the main transport route (Danube) to share these resources is key. The relevant legal framework is analyzed with the aim of developing a transnational strategy with national roadmaps for easy implementation. Finally, the impact of DanuP-2-Gas will be ensured through training and workshops on the developed tools and insights, where future projects and business models will be worked out with interested stakeholders.