https://en.wikipedia.org/wiki/Cernavod%C4%83_Nuclear_Power_P...
> Make and model CANDU 6
> Unit 1, a CANDU 6-type,
> Four years later, Unit 2, another CANDU 6-reactor, achieved criticality
> Make and model CANDU 6
> Unit 1, a CANDU 6-type,
> Four years later, Unit 2, another CANDU 6-reactor, achieved criticality