This is an informative paper aiming at disseminating the main achievements of COMPASsCO₂ project to a wide audience, in order to increase awareness on sustainable energy technologies and highlight the efforts of both research and industry for the transition to a carbon neutral energy mix in Europe. It summarises the activities conducted in the first 18 months of implementation (November 2020 – April 2022), and the main accomplishments, with a specific focus on the development and testing of novel materials.