The ECOMET project aims at the development of an innovative power-to-gas technology, a two-in-one combination of a protonic ceramic electrolyser and a chemical reactor able to directly convert CO2 and water into e-methane. EIFER, University of Twente, Shell, WZR Ceramics and Forschungszentrum Jülich will combine their competences to develop the technology until TRL 4 by implementing new catalysts and upscaling the electrochemical device. A techno-economic analysis of methane upgrading based on the ECOMET system will be developed and complimented by life cycle assessment (LCA) and societal acceptance studies to facilitate the roll-out of the technology.