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Romania Romania · Bucharest · 44.432, 26.104

VVR-S Bucharest

VVR-S Bucharest, a research reactor (tank) in Bucharest, Romania, with 2 MW of thermal power, operated by Horia Hulubei National Institute for R&D in Physics & N. Eng. Shut down, first critical in 1957.

It was one of the 5 research reactors Romania has had; 2 remain in operation today. It was the first research reactor in Romania to go critical. 36 tank-type reactors remain in operation today across 23 countries.

Country
Romania
City
Bucharest
Type
Tank
Thermal power
2 MW
Operator
Horia Hulubei National Institute for R&D in Physics & N. Eng
Status
Shut down
First criticality
1957

Data: IAEA RRDB · updated on Sep 3, 2026

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