Wolseong Nuclear Power Plant

Wolseong Nuclear Power Plant (Korean: 월성원자력발전소 ), also known as Wolsong Nuclear Power Plant. It is located in the east of South Korea near the Sea of Japan. It is built at Nae-ri, Yangnm-myeon, Gyeongju, North Gyeongsang province.

Wolseong Nuclear Power Plant will be constructed in two phases, with a total of 6 reactors and an installed capacity of 3,835 MW.

Construction of Wolseong 1 started in 1976 and was completed in 1982. In the following year, the power plant began commercial operations. This PHWR reactor has a gross generation capacity of 678 MW.

Wolsong Nuclear Power Plant
Wolsong Nuclear Power Plant

Wolseong reactors 2, 3 and 4 were completed in 1997, 1998 and 1999, respectively. Each of these reactors has a capacity of 700 MW. Wolseong Nuclear Plant has since operated successfully.

Wolseong Nuclear Power Plant supplies about 5% of South Korea’s electricity. It is the only South Korean nuclear power plant operating CANDU-type PHWR (Pressurized Heavy Water Reactors).

Korea Hydro & Nuclear Power owns the plant. These reactors are capable of consuming multiple types of fuel, including wastes from South Korea’s other nuclear plants.

Wolseong Nuclear Power Plant
Wolseong Nuclear Power Plant

Shin-Wolsong Nuclear Power Plant

Shin-Wolsong No. 1 and No. 2, are two new OPR-1000 type pressurized water reactors. Shin-Wolsong 1 became fully operational in July 2012.

In November 2014, Shin Wolsong-2 loaded its first core of nuclear fuel, and the plant was connected to the grid in February 2015, with commercial operation commencing in July 2015.

Shin-Wolsong Nuclear Power Plant
Shin-Wolsong Nuclear Power Plant

6 Reactors

Construction began

Phase I

  • Wolsong-1 October 30, 1977
  • Wolsong-2 June 22, 1992
  • Wolsong-3 March 17, 1994
  • Wolsong-4 July 22, 1994

Phase II

  • Shin Wolsong-1 November 20, 2007
  • Shin Wolsong-2 September 23, 2008

Commission date

Phase I

  • Wolsong-1 April 22, 1983
  • Wolsong-2 July 1, 1997
  • Wolsong-3 July 1, 1998
  • Wolsong-4 October 1, 1999

Phase II

  • Shin Wolsong-1 July 31, 2012
  • Shin Wolsong-2 July 24, 2015

Unit 1 of the Wolsong nuclear power plant ( Wolsong-1 ) will be decommissioned before the expiration of the operating permit in 2022.


Wolseong Nuclear Power Plant Data

South Korea
East Asia
In use
Official name
월성원자력발전소, 月城原子力發電所
Gyeongju, North Gyeongsang, South Korea
Korea Hydro & Nuclear Power
Korea Hydro & Nuclear Power
Oct-30, 1977
Apr-22, 1983
Installed capacity
3835 MW
Units operational
1 × 657 MW 1 × 647 MW 1 × 651 MW 1 × 653 MW 1 × 997 MW 1 × 993 MW
Reactor type
Reactor supplier
Cooling source
Sea of Japan (East sea of Korea)

Wolseong Nuclear Power Plant Location On Earth

Filter by
View Wolseong Nuclear Power Plant on Google Satellite Map

Google satellite maps allow you to see building details more clearly, including natural landscapes such as mountains, rivers, deserts, sea and man-made engineering buildings.

If you are very interested in this engineering building, it is a good idea to click below Google Map icon. We will help you jump to the corresponding location of this building or engineering on Google satellite map.

Go to Google Satellite Map
Scale ( only within the industry of this building / engineering )
Technology ( only within the industry of this building / engineering )
Era-1977 ( The earlier the era, the higher the score,respect the older generation of engineering )


Please enter your comment!
Please enter your name here