Small modular reactors Small modular reactors and innovative reactor systems Page contents Page contents Portfolio overview Advanced nuclear reactors, particularly small modular reactors (SMRs), are being designed for improved sustainability, economics, safety and security. They are also gaining increasing attention for the delivery of clean power and heat. This portfolio supports their development and deployment. It provides policymakers with a realistic view of how SMRs and other innovative reactor systems can complement the European energy mix. It ensures that dedicated policy options are evidence-based, and it supports the work of the new European Industrial Alliance on SMRs, the Sustainable Nuclear Energy Technology Platform and the Generation IV International Forum. Objectives Evaluate safety and sustainability of small modular reactors designAssess different designs of small modular reactors (SMRs), innovative reactors and fuels, in terms of safety, viability and sustainability. Promote early integration of safety, safeguards and security Aim to ensure that designers and vendor companies integrate safety, safeguards and security constraints early in the design process, thereby facilitating and accelerating licensing. Integrate nuclear technologies and non-electric applications in energy modelling Provide policymakers with a realistic view of how SMRs and other innovative reactor systems and their applications can complement the European energy mix, together with renewables.Support the improvement of data and standards Contribute to EU efforts to improve existing data, codes and standards for the design, manufacturing and in-service inspection of SMRs. Help to establish a European supply chain Support the creation of a European supply chain for safety-related structures, systems and components. Supported Commission priorities A global Europe: Leveraging our power and partnershipsA new era for European Defence and SecurityA new plan for Europe’s sustainable prosperity and competitivenessSustaining our quality of life: Food security, water and nature ActivitiesSafety of fuels for innovative nuclear reactorsSafety, security, safeguards and licensing of small modular reactorsSmall modular reactors and innovative reactor policiesStructural materials of small modular reactors Related news 21 May 2025JRC launches modelling hub for nuclear applications1 min readSee all Related tools and laboratories Scientific tools and databasesLaboratories