Yonggwang
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: 5,813 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Hanbit 1 | PWR | WH F | 965 | 1981-06-04 | 1986-03-05 | 1986-08-25 | Operational | |
| Hanbit 2 | PWR | WH F | 952 | 1981-12-01 | 1986-11-11 | 1987-06-10 | Operational | |
| Hanbit 3 | PWR | OPR-1000 | 983 | 1989-12-23 | 1994-10-30 | 1995-03-31 | Operational | |
| Hanbit 4 | PWR | OPR-1000 | 961 | 1990-05-26 | 1995-07-18 | 1996-01-01 | Operational | |
| Hanbit 5 | PWR | OPR-1000 | 974 | 1997-06-29 | 2001-12-19 | 2002-05-21 | Operational | |
| Hanbit 6 | PWR | OPR-1000 | 978 | 1997-11-20 | 2002-09-16 | 2002-12-24 | Operational |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Hanbit 1 | 903 | 1,025 | 2,787 | 1986-01-31 | WESTINGHOUSE ELECTRIC CORPORATION | WESTINGHOUSE ELECTRIC CORPORATION | |
| Hanbit 2 | 903 | 1,024 | 2,787 | 1986-10-15 | WESTINGHOUSE ELECTRIC CORPORATION | WESTINGHOUSE ELECTRIC CORPORATION | |
| Hanbit 3 | 950 | 1,041 | 2,825 | 1994-10-13 | DOOSAN HEAVY INDUSTRIES AND CONSTRUCTION CO. LTD./KOREA ATOMIC ENERGY RESEARCH INSTITUTE/COMBUSTION ENGINEERING | GENERAL ELECTRIC CO. | |
| Hanbit 4 | 950 | 1,041 | 2,825 | 1995-07-07 | DOOSAN HEAVY INDUSTRIES AND CONSTRUCTION CO. LTD./KOREA ATOMIC ENERGY RESEARCH INSTITUTE/COMBUSTION ENGINEERING | GENERAL ELECTRIC CO. | |
| Hanbit 5 | 950 | 1,051 | 2,825 | 2001-11-24 | DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO.LTD./KOREA POWER ENGINEERING COMPANY/COMBUSTIONENGINEERING | Doosan Heavy Industries & Construction and General Electric | |
| Hanbit 6 | 950 | 1,053 | 2,825 | 2002-09-01 | 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 |
|---|---|---|---|---|
| Hanbit 1 | 274.6 TWh | 84.8% | 83.3% | 84.3% |
| Hanbit 2 | 267.3 TWh | 84.1% | 82.7% | 83.6% |
| Hanbit 3 | 212.6 TWh | 80.1% | 78.9% | 79.6% |
| Hanbit 4 | 189.5 TWh | 73.4% | 72.1% | 72.7% |
| Hanbit 5 | 163.0 TWh | 79.2% | 78.4% | 79.2% |
| Hanbit 6 | 171.8 TWh | 85.5% | 85.2% | 85.8% |
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.
35.4144, 126.418
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: Hanbit Nuclear Power Plant.
Hanbit Nuclear Power Plant, known until 2013 as Yonggwang (Yeonggwang), is on the coast of Jeollanam-do, South Korea. It was renamed at the request of local fishermen.
Read more
Construction of Units 1 and 2, Westinghouse three-loop pressurized water reactors, began on 4 June 1981 and 10 December 1981. Units 3 to 6 followed, starting construction on 23 December 1989, 26 May 1990, 29 June 1997 and 20 November 1997. The six units were connected to the grid between March 1986 and September 2002. In November 2012, checks found that suppliers had forged quality certificates for 7,682 parts delivered since 2003.