Bulgaria, NPP Kozloduy has successfully reconnected its 1,000 MW unit 6 to the network

, SEE Energy News

Bulgaria’s sole nuclear power plant Kozloduy said that it has successfully reconnected its 1,000 MW unit 6 to the network, following a week-long downtime.

The unit was taken offline for scheduled maintenance on 10 December, after a leak of coolant was detected in the third steam generator. All necessary actions were taken to localize and repair the defects, while conducted checks showed that the unit’s systems and facilities operate normally, meeting safe operation requirements.

Unit 6 was already been shut down due to similar issue between 29 October and 3 November.

Originally, NPP Kozloduy had six reactors, but four older 440 MW reactors were shut down in 2007 due to nuclear safety concern of the European Union. The plant currently operates two Soviet- built 1,000 MW reactors, unit 5 and unit 6 which were commissioned in 1987 and 1991 respectively.