The European Solar Research Infrastructure for Concentrated Solar Power (EU-SOLARIS) is a distributed Research Infrastructure for the integration and coordination of Research and Technology Development (RTD) capabilities and efforts in Concentrating Solar Power/Solar Thermal Energy (CSP/STE) technologies in Europe. EU-SOLARIS will become the reference for CSP/STE and maintain Europe at the forefront of these technologies by facilitating the access of researchers to the most complete, high-quality scientific portfolio of facilities, services and tools via a single access point. EU-SOLARIS will link scientific communities and industry and speed up the development of research and innovation due to a closer collaboration model, knowledge exchange management and a wider dissemination of results.

EU-SOLARIS entered the ESFRI Roadmap in 2010 and was acknowledged as ESFRI Landmark in 2021 as a result of successful submission of the European Research Infrastructure Consortium (ERIC) Step2 application by four Member States. EU-SOLARIS is the outcome of a Preparation Phase made by a consortium composed of thirteen research institutions plus the Spanish Ministry of Economy and Competitiveness (MINECO) and the European Solar Thermal Electricity industry Association (ESTELA). In Geographical terms, the consortium offers a wide geographical spread to handle the main stakeholders in the Solar Thermal Energy Research and R&D Infrastructures throughout Europe, with links outside the European territory. EU-SOLARIS is now facing the Implementation Phase with Operation Phase expected to start in 2022.