Kori nuclear power plant
Kori nuclear power plant is a nuclear power station in South Korea with 3 operating units totalling 2,773 MW gross. The site has 4 units on record in total.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 2 | PWR | WH F | 681 | 1983 | |
| Unit 3 | PWR | WH F | 1,046 | 1985 | |
| Unit 4 | PWR | WH F | 1,046 | 1986 | |
| Unit 1 | Retired | PWR | WH 60 | 607 | 1978 |
Kori nuclear power plant in context
By gross operating capacity Kori nuclear power plant is the 5th largest of 8 operating nuclear sites in South Korea, holding 10% of the country's operating capacity, and ranks 46th of 172 worldwide.
Its operating units started up between 1983 and 1986; the median unit is 41.0 years old, older than the median of 27.0 in South Korea.
The 4 units with both construction and grid dates on record took 4.9 to 5.7 years (median 5.3) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Saeul nuclear power plant (1 km), Shin-Kori nuclear power plant (1 km) and Wolsong nuclear power plant (46 km).
2 operating units are rated differently now from their design net capacities: Unit 2 +3.6% and Unit 3 +1.0%.
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1972 | 1977 | 4.9 | 5.4 (1970s) |
| Unit 2 | 1977 | 1983 | 5.3 | 7.3 (1980s) |
| Unit 3 | 1979 | 1985 | 5.3 | 7.3 (1980s) |
| Unit 4 | 1980 | 1985 | 5.7 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Saeul nuclear power plant | South Korea | 1 km | 3.0 |
| Shin-Kori nuclear power plant | South Korea | 1 km | 2.1 |
| Wolsong nuclear power plant | South Korea | 46 km | 1.8 |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
Earthquakes nearby
Loading the latest USGS check…
| Time (UTC) | Mag | Depth | Epicentre | Distance |
|---|
Magnitude 4.0 and above within 200 km of Kori nuclear power plant's listed coordinates, past 30 days. This is distance, not shaking: it says nothing about damage or any change in operation. Every plant.
| Location | Jangan-eup, Busan, South Korea |
|---|---|
| Coordinates | 35.3199, 129.2948 |
| Elevation | about 15 mabove sea level |
| Setting | On the sea coast, 0.2 km from the water |
| Region | Eastern Asia |
| Units by status | Operating: 3 Retired: 1 |
Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | Korea Hydro & Nuclear Power Co |
|---|---|
| Operators | Korea Hydro & Nuclear Power |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data