EWA
EWA, a research reactor (tank) in Otwock, Poland, with 10 MW of thermal power, operated by Institute of Atomic Energy POLATOM. Shut down, first critical in 1958.
It was one of the 6 research reactors Poland has had; 1 remains in operation today. It was the first research reactor in Poland to go critical. 36 tank-type reactors remain in operation today across 23 countries.
- Country
- Poland
- City
- Otwock
- Type
- Tank
- Thermal power
- 10 MW
- Operator
- Institute of Atomic Energy POLATOM
- Status
- Shut down
- First criticality
- 1958
See also: every research reactor in Poland · How research reactors work
Data: IAEA RRDB · updated on Sep 3, 2026