By Marta M. Gospodarczyk, IAEA Department of Nuclear Energy
The IAEA has rolled out an updated version of its Power Reactor Information System (PRIS), launching a new public webpage featuring optimized interactive PRIS Data Browser, providing faster, more intuitive access to trusted nuclear power reactor information from around the world.
For more than five decades, PRIS has served as the IAEA’s authoritative source of information on nuclear power reactors. The database supports Member States, policymakers, regulators, utilities, researchers and the public with reliable data on reactor status, design characteristics, operating experience and global nuclear power development trends.
The launch marks the completion of a multi-year digital transformation programme that has progressively modernized the entire PRIS portfolio, from data collection and validation to data analysis, visualization and public dissemination—creating a modern platform designed to meet the future needs of the global nuclear community. Its flagship publication, Nuclear Power Reactors in the World (RDS-2), is among the IAEA’s three most widely used publications, with more than 20 000 annual downloads.
“Since its establishment in 1969, PRIS has grown into the world’s authoritative source of nuclear power reactor information, attracting more than one million visits annually,” said Director of the IAEA Division of Nuclear Power Aline des Cloizeaux. “This revamp is more than a technical upgrade — it demonstrates the IAEA’s commitment to making nuclear data more accessible, more useful and more engaging for our stakeholders around the world.”
A Modern Platform for a Growing Nuclear Sector
The new PRIS website responds to the growing demand for timely, transparent nuclear power data by offering improved navigation, enhanced search capabilities and a modern user experience that makes nuclear power information easier to explore and understand.
A core feature of the updated platform is the new PRIS Data Browser, which allow users to explore decades of reactor information and operational data through dynamic visualizations and customizable reports.
The platform allows users to analyse trends, benchmark the performance of reactor technologies and access statistical information through an intuitive interface designed for both technical experts and non-specialist users.
The modernization also provides a flexible foundation for future enhancements, ensuring that PRIS can continue to evolve alongside advances in reactor technologies, expanding reporting requirements for advanced reactors such as small modular reactors and the growing demand for data-driven analysis.
Nearly a Decade of Continuous Modernization
The new website builds on a long-term modernization programme that began in 2018 with the transformation of the PRIS Web-Enabled Data Acquisition System (WEDAS), the platform Member States used to submit and validate nuclear power data.
The project introduced a modern technology platform, Data Acquisition and Validation Application (DAVA), while strengthening cybersecurity, improving usability and creating a more efficient data management process.
The successful deployment of PRIS DAVA in 2020 modernized the collection and validation of specification, operational, construction, decommissioning and non-electric application data. It incorporated improvements proposed by Member States through PRIS technical meetings, consultancy meetings and pilot testing programmes.
The modernization now extends this transformation to the public-facing PRIS website and statistical applications, delivering an improved experience for users worldwide.
The active participation of Member States representatives, including PRIS liaison officers, data providers, nuclear utilities and international organizations, was crucial to the project ‘s success. Their feedback helped shape the platform and ensured it meets the practical needs of the international nuclear community.
Looking Ahead
This update marks the first of two planned releases under the PRIS modernization programme. A second release, scheduled for early 2027, will introduce additional analytical capabilities and complete the modernization of the PRIS statistical applications, further strengthening PRIS as a leading source of nuclear power information.
The upgraded platform will continue to evolve alongside the global nuclear sector, providing Member States and the international community with a stronger resource to help monitor nuclear power developments, support evidence-based decision-making and advance knowledge sharing across the global nuclear industry.
