Ulchin
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.
6 units: 6 operational.
Net capacity in service: 5,871 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Hanul 1 | PWR | France CPI | 953 | 1983-01-26 | 1988-04-07 | 1988-09-10 | Operational | |
| Hanul 2 | PWR | France CPI | 957 | 1983-07-05 | 1989-04-14 | 1989-09-30 | Operational | |
| Hanul 3 | PWR | OPR-1000 | 991 | 1993-07-21 | 1998-01-06 | 1998-08-11 | Operational | |
| Hanul 4 | PWR | OPR-1000 | 994 | 1993-11-01 | 1998-12-28 | 1999-12-31 | Operational | |
| Hanul 5 | PWR | OPR-1000 | 989 | 1999-10-01 | 2003-12-18 | 2004-07-29 | Operational | |
| Hanul 6 | PWR | OPR-1000 | 987 | 2000-09-29 | 2005-01-07 | 2005-04-22 | Operational |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Hanul 1 | 903 | 1,014 | 2,775 | 1988-02-25 | FRAMATOME | ALSTOM | |
| Hanul 2 | 903 | 1,011 | 2,775 | 1989-02-25 | FRAMATOME | ALSTOM | |
| Hanul 3 | 950 | 1,051 | 2,825 | 1997-12-21 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | |
| Hanul 4 | 950 | 1,052 | 2,825 | 1998-12-14 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | |
| Hanul 5 | 950 | 1,049 | 2,825 | 2003-11-28 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | |
| Hanul 6 | 950 | 1,049 | 2,825 | 2004-12-16 | 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 |
|---|---|---|---|---|
| Hanul 1 | 264.8 TWh | 85.9% | 85.6% | 86.1% |
| Hanul 2 | 261.6 TWh | 87.4% | 86.6% | 87.4% |
| Hanul 3 | 205.8 TWh | 85.4% | 85.5% | 86.2% |
| Hanul 4 | 192.1 TWh | 82.1% | 81.4% | 82.5% |
| Hanul 5 | 165.3 TWh | 88.0% | 88.0% | 88.3% |
| Hanul 6 | 160.8 TWh | 88.5% | 88.4% | 88.9% |
Operator: Korea Hydro and Nuclear Power Co.
Owner: Korea Hydro and Nuclear Power Co.
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-19.
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.
37.0931, 129.383
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: Hanul Nuclear Power Plant.
Hanul Nuclear Power Plant, known until 2013 as Uljin (Ulchin), is in Buk-myeon, Uljin County, North Gyeongsang Province, South Korea, on the East Sea coast.
Read more
Construction of Unit 1 began on 26 January 1983 and Unit 2 on 5 July 1983, both French-designed pressurized water reactors. Units 3 to 6 are Korean OPR-1000 reactors, with construction starting in July 1993, November 1993, October 1999 and September 2000. The six units were connected to the grid on 7 April 1988, 14 April 1989, 6 January 1998, 28 December 1998, 18 December 2003 and 7 January 2005.