Siloe
Siloe, a research reactor (pool) in Grenoble, France, with 35 MW of thermal power, operated by CEN Grenoble. Decommissioned, first critical in 1963.
It was one of the 38 research reactors France has had; 2 remain in operation today. It went critical 15 years after the first research reactor in France, ZOE (EL-1) (1948). 48 pool-type reactors remain in operation today across 28 countries. Its declared uses include isotope production, transmutation and materials testing.
- Country
- France
- City
- Grenoble
- Type
- Pool
- Thermal power
- 35 MW
- Operator
- CEN Grenoble
- Status
- Decommissioned
- First criticality
- 1963
- Purpose
- Isotope production, transmutation, materials testing
See also: every research reactor in France · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026