France France · Grenoble · 45.198, 5.701

Siloette

Siloette, a research reactor (pool) in Grenoble, France, with 100 kW of thermal power, operated by CEA Grenoble. Decommissioned, first critical in 1964.

It was one of the 38 research reactors France has had; 2 remain in operation today. It went critical 16 years after the first research reactor in France, ZOE (EL-1) (1948). 48 pool-type reactors remain in operation today across 28 countries.

Country
France
City
Grenoble
Type
Pool
Thermal power
100 kW
Operator
CEA Grenoble
Status
Decommissioned
First criticality
1964

Data: IAEA RRDB · updated on Sep 3, 2026

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