South Korea · 35.320, 129.295Kori
Kori, nuclear power plant in South Korea, operates 5 pressurized water reactors with 5,392 MW net installed capacity and has been in service since 1978. 2 more units have their operation suspended.
It is South Korea's oldest nuclear plant, operating since 1978. Unit Kori 2 has been operating for 43 years, since 1983. Saeul 3 is under construction, with grid connection expected in 2026.
- Country
- South Korea
- Units
- 10
- Technology
- PWR
- Net capacity
- 5,392 MWe
- First grid connection
- 1978
- Operator
- Korea Hydro & Nuclear Power
- Owner
- Korea Hydro & Nuclear Power Co
- Status
- Operating
See also: alerts for this plant · every plant in South Korea · Vendor: Westinghouse · Vendor: Doosan (with KOPEC) · every PWR reactor · how a PWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Licence until | Load factor |
|---|---|---|---|---|---|---|---|---|---|---|
| Kori 1 | Pressurized water (PWR) | WH 60 | Shut down | 576 | 1,729 | Aug 1972 | Jun 1977 | Jun 2017 | — | — |
| Saeul 1 | Pressurized water (PWR) | APR-1400 | Operating | 1,392 | 3,983 | Oct 16, 2008 | Jan 15, 2016 | — | — | 96.8 % (2024) |
| Shin-Kori 1 | Pressurized water (PWR) | OPR-1000 | Operating | 986 | 2,825 | Jun 16, 2006 | Aug 4, 2010 | — | — | 87.5 % (2024) |
| Kori 2 | Pressurized water (PWR) | WH F | Operating | 640 | 1,882 | Dec 23, 1977 | Apr 22, 1983 | — | Apr 8, 2033 | 0.0 % (2024) |
| Saeul 2 | Pressurized water (PWR) | APR-1400 | Operating | 1,392 | 3,983 | Aug 19, 2009 | Apr 22, 2019 | — | — | 86.3 % (2024) |
| Shin-Kori 2 | Pressurized water (PWR) | OPR-1000 | Operating | 982 | 2,825 | Jun 5, 2007 | Jan 28, 2012 | — | — | 89.7 % (2024) |
| Kori 3 | Pressurized water (PWR) | WH F | Offline by regulatory decision | 996 | 2,912 | Oct 1, 1979 | Jan 22, 1985 | — | Sep 28, 2024 | 74.7 % (2024) |
| Saeul 3 | Pressurized water (PWR) | APR-1400 | Under construction | 1,340 | 3,983 | Apr 2017 | 2026 (planned) | — | — | — |
| Kori 4 | Pressurized water (PWR) | WH F | Offline by regulatory decision | 1,001 | 2,912 | Apr 1, 1980 | Dec 31, 1985 | — | Aug 6, 2025 | 84.6 % (2024) |
| Saeul 4 | Pressurized water (PWR) | APR-1400 | Under construction | 1,340 | 3,983 | Sep 2018 | 2026 (planned) | — | — | — |
Data: IAEA PRIS · Wikipedia · editorial review · updated on Sep 21, 2026
Kori 1, a 576 MWe PWR (WH 60), started construction in 1972 and operated from 1977 to 2017.
Saeul 1, a 1,392 MWe PWR (APR-1400), started construction in 2008, was connected to the grid in 2016 and is still operating, with a 96.8% load factor in 2024.
Shin-Kori 1, a 986 MWe PWR (OPR-1000), started construction in 2006, was connected to the grid in 2010 and is still operating, with a 87.5% load factor in 2024.
Kori 2, a 640 MWe PWR (WH F), started construction in 1977, was connected to the grid in 1983 and is still operating.
Saeul 2, a 1,392 MWe PWR (APR-1400), started construction in 2009, was connected to the grid in 2019 and is still operating, with a 86.4% load factor in 2024.
Shin-Kori 2, a 982 MWe PWR (OPR-1000), started construction in 2007, was connected to the grid in 2012 and is still operating, with a 89.7% load factor in 2024.
Kori 3, a 996 MWe PWR (WH F), started construction in 1979, was connected to the grid in 1985 and is currently suspended.
Saeul 3, a 1,340 MWe PWR (APR-1400), has been under construction since 2017, with grid connection expected in 2026.
Kori 4, a 1,001 MWe PWR (WH F), started construction in 1980, was connected to the grid in 1985 and is currently suspended.
Saeul 4, a 1,340 MWe PWR (APR-1400), has been under construction since 2018, with grid connection expected in 2026.
Operator: Korea Hydro & Nuclear Power.
Owner: Korea Hydro & Nuclear Power Co (Kori 1, Saeul 1, Shin-Kori 1, Kori 2, Saeul 2, Shin-Kori 2, Kori 3, Saeul 3, Kori 4, Saeul 4).