The shut down, which raises concerns of power shortages in the forthcoming winter season, follows the regulator’s decision to stop the operations of a 950MW nuclear reactor in Yeonggwang county, southwest of Seoul, in September 2013, Reuters reports.
NSSC did not provide any timeline for the reactor restart.
The latest closure makes seven of the country’s total 23 reactors offline, thereby increasing the risk of power shortages similar to that observed this summer and previous winter.
Three were closed in May 2013, following discovery of fake safety certificates for reactor parts, three for scheduled maintenance, while one had reached the end of its service life.
South Korea is still struggling to prevent blackouts during peak demand seasons of summer and winter, in wake of a series of nuclear power reactor shutdowns since late 2012, according to the news agency.
