Saeul
Reactor Data
Reactor Units
Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
4 units: 2 operational, 2 under construction.
Net capacity in service: 2,784 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Saeul 1 | PWR | APR-1400 | 1,392 | 2008-10-16 | 2016-01-15 | 2016-12-20 | Operational | |
| Saeul 3 | PWR | APR-1400 | 1,340 | 2017-04-01 | Under Construction | |||
| Saeul 4 | PWR | APR-1400 | 1,340 | 2018-09-20 | Under Construction | |||
| Saeul 2 | PWR | APR-1400 | 1,392 | 2009-08-19 | 2019-04-22 | 2019-08-29 | Operational |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Saeul 1 | 1,340 | 1,488 | 3,983 | 2015-12-29 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | |
| Saeul 3 | 1,340 | 1,400 | 3,983 | 2026-04-12 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | First criticality 2026-04-12 per KHNP; in test operation, grid connection date not confirmed |
| Saeul 4 | 1,340 | 1,400 | 3,983 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | ||
| Saeul 2 | 1,340 | 1,491 | 3,983 | 2019-04-08 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Saeul 1 | 93.9 TWh | 81.8% | 81.5% | 82.3% |
| Saeul 2 | 68.2 TWh | 84.6% | 84.3% | 85.1% |
Operator: Korea Hydro and Nuclear Power Co.
Owner: Korea Hydro and Nuclear Power Co.
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-14.
Working Here
Per Diem Rates FY 2026
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$60
Lodging/Night
$40
M&IE/Day
$100
Total/Day
South Korea: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.
Photos
Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.
Facility Map
Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
35.3371, 129.302
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Plant Facts
About This Site
Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Kori Nuclear Power Plant; WNA: Saeul 1; WNA: Saeul 2.
Saeul Nuclear Power Plant is in Ulju County, Ulsan, South Korea. Its units were built as part of the Shin Kori project and later renamed Saeul.
Read more
Construction of the first two units, Korean APR-1400 pressurized water reactors, began on 16 October 2008 and 19 August 2009. Unit 1 reached first criticality on 29 December 2015 and was connected to the grid on 15 January 2016, entering commercial operation on 20 December 2016. Unit 2 was connected to the grid on 22 April 2019 and entered commercial operation on 29 August 2019.