Jožef Stefan Institute
The Jožef Stefan Institute (JSI), based in Ljubljana, Slovenia, is the country's premier research institution, established in 1949 and primarily funded by the Slovenian government through the Slovenian Research Agency. It operates the TRIGA Mark II research reactor, which supports civilian nuclear r
Key Stats
100/100
Jožef Stefan Institute
Country: Slovenia Fleet Size: 1 reactor(s) in platform database Total Tracked Capacity: —
Overview
The Jožef Stefan Institute (JSI), based in Ljubljana, Slovenia, is the country's premier research institution, established in 1949 and primarily funded by the Slovenian government through the Slovenian Research Agency. It operates the TRIGA Mark II research reactor, which supports civilian nuclear research, education, training, and isotope production for medical and industrial applications. JSI plays a critical role in Slovenia's nuclear sector by fostering scientific advancement and contributing to regional nuclear safety and expertise. While its global significance is limited due to its small scale, JSI collaborates internationally on nuclear research and participates in European nuclear research networks like EURATOM.
Recent Developments
In the past 12-24 months, JSI has continued to focus on enhancing the capabilities of its TRIGA Mark II reactor, including upgrades to support advanced research and isotope production, as reported in Slovenian research updates. The institute has also strengthened ties with international partners through EURATOM projects, focusing on nuclear safety and sustainable energy research, as noted in recent European Commission reports. Additionally, JSI has been involved in national discussions on Slovenia’s energy future, providing expertise on potential nuclear expansion, though no concrete projects have been finalized.
Reactor Fleet (Platform Database)
| Reactor | Country | Type | Capacity (MWe) | Status |
|---|---|---|---|---|
| TRIGA Mark II (Ljubljana) | Slovenia | TRIGA | — | OPERATIONAL |
Sources
- Official Website — Official organization website
- IAEA Reactor Database — IAEA Power Reactor Information System
- World Nuclear Association — WNA nuclear industry reference
Enriched by Grok · Second Atomic Age Nuclear Wiki · 2026-05-10
Sources (1)
Related Notes
Centre for Energy Research (EK)
The Centre for Energy Research (EK), based in Hungary, is a prominent state-funded research institution operating under the auspices of the Hungarian Academy of Sciences. It focuses on civilian nuclear energy research and development, playing a critical role in advancing nuclear safety, reactor tech
operatorsCIAE (China Institute of Atomic Energy)
The China Institute of Atomic Energy (CIAE), based in Beijing, is a premier research institution under the China National Nuclear Corporation (CNNC), a state-owned enterprise overseeing China's civilian nuclear sector. Established in 1950, CIAE focuses on nuclear science and technology development,
operatorsNational Tsing Hua University (NTHU)
National Tsing Hua University (NTHU), located in Hsinchu, Taiwan, is a leading public research university renowned for its contributions to science and engineering, including civilian nuclear technology. As an academic institution, it operates under governmental oversight and is not a commercial ent
operatorsRIAR
The Research Institute of Atomic Reactors (RIAR), based in Dimitrovgrad, Ulyanovsk Oblast, Russia, is a prominent nuclear research facility established in 1956. Operating under the state corporation Rosatom, RIAR specializes in the development and testing of nuclear reactor technologies and fuel cyc
operatorsAELB/MINT (Malaysian Nuclear Agency)
The Malaysian Nuclear Agency, previously known as the Malaysian Institute for Nuclear Technology Research (MINT), operates under the oversight of the Atomic Energy Licensing Board (AELB) and is part of the Ministry of Science, Technology and Innovation (MOSTI) in Malaysia. As a government entity, it
operatorsANSTO
The Australian Nuclear Science and Technology Organisation (ANSTO) is Australia's national nuclear research and development agency, established in 1987 to replace the Australian Atomic Energy Commission. It is a statutory body under the Australian Government, operating under the Department of Indust