Jules Horowitz Reactor (JHR)
Under construction at the CEA Cadarache site in France, the Jules Horowitz Reactor (JHR) is a high-flux pool-type research reactor with a planned thermal power of 100 MWth. It holds significant importance as an international project involving 10 partner organizations, aimed at materials testing, fue
Key Stats
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Jules Horowitz Reactor (JHR)
Status: UNDER_CONSTRUCTION Category: RESEARCH Country: France France Operator: cea Type: Pool Pool Capacity: 100 MWth (thermal only)
Overview
Under construction at the CEA Cadarache site in France, the Jules Horowitz Reactor (JHR) is a high-flux pool-type research reactor with a planned thermal power of 100 MWth. It holds significant importance as an international project involving 10 partner organizations, aimed at materials testing, fuel irradiation, and isotope production for civilian nuclear applications. First criticality is targeted for 2027, marking a key step in future nuclear research infrastructure.
Key Facts
Notes
High-flux materials test reactor under construction at CEA Cadarache. International project with 10 partner organizations. Target 2027 first criticality.
Source: IAEA PRIS / reactors_canonical · Enriched by Grok Last updated: 2026-05-10
Sources
- IAEA PRIS - Jules Horowitz Reactor — Official IAEA record for JHR under construction in France.
- Wikipedia - Jules Horowitz Reactor — Detailed overview of the reactor's purpose, design, and status.
- CEA - Jules Horowitz Reactor — Official information from the French Alternative Energies and Atomic Energy Commission (CEA) about the JHR project.
- World Nuclear Association - Nuclear Power in France — Country profile including information on research reactors like JHR.
- World Nuclear News - JHR Construction Progress [UNVERIFIED] — Update on the construction status of the Jules Horowitz Reactor.
Sources (1)
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