Private company

Korea Hydro & Nuclear Power

Logo: KHNP, Public domain, via Wikimedia Commons4

Energy company in South Korea

Korea Hydro & Nuclear Power (KHNP; Korean: 한국수력원자력) is a subsidiary of the Korea Electric Power Corporation (KEPCO). It operates large nuclear and hydroelectric plants in South Korea, which are responsible for about 31.56 percent of the country's electric power. In December 2020, KHNP operated 24 nuclear power plants, 37 hydroelectric plants, 16 pumped-storage power plants, and 32 renewable power plants.2 It is headquartered in Gyeongju.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

Apr 2, 2001Founded1
  • Industryelectric power industry1
  • HeadquartersGyeongju1
  • Websitewww.khnp.co.kr/eng
  • Legal formgonggong danche1
  • LEI9884008CRY5MLCN8OQ433
  • StatusActive3
  • LEI statusIssued and current3
  • Registered address경상북도 경주시 문무대왕면 불국로 1655, 38120 Gyeongju-si, South Korea3
  • Registered withNational Tax Service, 120-86-189433

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Gyeongju City Korea Hydro & Nuclear Power Headquarters
Photo: 한국수력원자력, KOGL Type 1, via Wikimedia Commons6

Korea Hydro & Nuclear Power (KHNP; Korean: 한국수력원자력) is a subsidiary of the Korea Electric Power Corporation (KEPCO). It operates large nuclear and hydroelectric plants in South Korea, which are responsible for about 31.56 percent of the country's electric power.2

Corporate structure

Korea Hydro & Nuclear Power is part of a group headed by Korea Electric Power Corporation. 30 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Korea Electric Power Corporation Naju-si, South Korea
    • Korea Hydro & Nuclear Power 100% · Gyeongju-si, South Korea
    • KEPCO Nuclear Fuel Company Subsidiary · 96.36% · Yuseong District
    • KEPCO Engineering & Construction Company Subsidiary · 66.32% · Gimcheon
    • KEPCO Plant Service & Engineering Co. Subsidiary · 52.5% · 나주시, South Korea
    • 한전FMS Subsidiary
    • Korea Gas Corporation Stake · 20.47% · Daegu
    • Korea District Heating Corporation Stake · 19.55% · Gyeonggi Province
    • KEPCO KDN Subsidiary · 100% · South Jeolla, South Korea
    • Korea East-West Power Company Subsidiary · 100% · Ulsan, South Korea
    • Korea Midland Power Company Subsidiary · 100% · South Chungcheong, South Korea
    • Korea South-East Power Company Subsidiary · 100% · South Gyeongsang, South Korea
    • Korea Southern Power Company Subsidiary · 100% · Busan, South Korea
    • Korea Western Power Company Subsidiary · 100% · South Chungcheong, South Korea
    • 한국남동발전(주) Subsidiary · 100% · Jinju-si, South Korea
      • RES TEHNOLOGY AD (РЕС Технолъджи АД) Subsidiary · 50% · Sofia, Bulgaria
    • 한국남부발전주식회사 Subsidiary · 100% · Busan Metropolitan City, South Korea
    • 한국동서발전(주) Subsidiary · 100% · Ulsan Metropolitan City, South Korea
    • 한국서부발전주식회사 Subsidiary · 100% · 태안군(Taean-gun), South Korea
    • 한국중부발전(주) Subsidiary · 100% · Boryeong-si, South Korea
    • 한전케이디엔(주) Subsidiary · 100% · naji, South Korea
      • KEPCO KDN CO. LIMITED Branch · naji, South Korea
    • KEPCO Baseball Club Subsidiary · South Korea
    • Korea Electric Power Research Institute Subsidiary · Daejeon, South Korea
    • MANGILAO INTERMEDIATE HOLDINGS LLC Subsidiary · Wilmington, Delaware, United States
    • RE BARREN RIDGE 2 HOLDINGS LLC Subsidiary · Los Angeles, California, United States
    • RE PATTERSON HOLDINGS LLC Subsidiary · Los Angeles, California, United States
      • RE Astoria Holdings LLC Subsidiary · San Francisco, California, United States
    • RE PIONEER HOLDINGS LLC Subsidiary · Los Angeles, California, United States
      • RE Astoria 2 Holdings LLC Subsidiary · San Francisco, California, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

Founded by Korea Electric Power Corporation on Apr 2, 2001.1

History

KHNP was established in 2001 as part of a general restructuring at KEPCO, which opened its first nuclear plant at Kori in Busan in 1977. Commercial operation at Kori nuclear #1 began in 1978.

Timeline

Before separation from KEPCO:

1978: Commercial operation of Kori 1 began.

1983: Commercial operation of Wolsong 1 and Kori 2 began.

1985: Commercial operation of Kori 3 began.

1986: Commercial operation of Kori 4 and Hanbit 1 began.

1987: Commercial operation of Hanbit 2 began.

1988: Commercial operation of Hanul 1 began.

Read the full text

1989: Commercial operation of Hanul 2 began.

1995: Commercial operation of Hanbit 3 began.

1996: Commercial operation of Hanbit 4 began.

1997: Commercial operation of Wolsong 2 began.

1998: Commercial operation of Wolsong 3 and Hanul 3 (Korea’s first nuclear power plant) began.

1999: Commercial operation of Hanul 4 and Wolsong 4 began.

2001: KHNP began.

After separation from KEPCO:

2002: Commercial operation of Hanbit 5 and 6; APR-1400 reactor was developed.

2005: Completion of Hanul 5 and 6 and the renewable-energy Kori Wind Power Plant and Yeonggwang Solar Park

2007: Continued operation of Kori 1 approved.

2010: Shin-Kori 3 reactor (first APR-1400 application) installed.

2011: Commercial operation of Shin-Kori 1 reactor (first OPR1000 application) began.

2012: Commercial operation of Shin-Kori 2 and Shin-Wolsong 1 began.

2013: First Korean-technology safety analysis of a heavy water reactor licensed.

2014: Korean APR+ nuclear power plant stand design approved.

2015: Continued operation of Wolsong 1 approved; commercial operation of Shin-Wolsong 2 began.

2016: Head office moved to Gyeongju; commercial operation of Shin-Kori 3 (first APR-1400 application) began.

2017: Completed Noeul Fuel Cell and Kori Photovoltaic Power Plant; retired Kori 1.

2018: Chameliya Khola Hydropower Station in Nepal completed.

2019: Photovoltaic power station at the Samnangjin Pumped-Storage Power Plant completed; commercial operation of Shin-kori 4 began.

From Wikipedia’s article on Korea Hydro & Nuclear Power, shared under CC BY-SA 4.0.5

Products and brands

  • electric power

Listed on Wikidata.1

Operations

The company operates internationally, with offices in New York, Washington, Paris, Tokyo and Prague. The current CEO is Chung Jaehoon (Korean: 정재훈). In 2020, the company had 12,551 employees and revenue of ₩10.4 trillion (about US$8 billion). Its international credit ratings are Aa2 stable/AA stable/AA- stable (Moody's/S&P/Fitch). The chief executive officer is Whang Joo-ho, who began his three-year term in 2022.

Power plants

Nuclear sites:

Kori site in Jangan-eup, Gijang-gun, Busan

Hanul site (formerly Ulchin) in Buk-myeon, Uljin-gun, Gyeongsangbuk-do

Read the full text

Wolseong site in Yangnam-myeon, Gyeongju, Gyeongsangbuk-do.

Hanbit site (formerly Yonggwang) in Hongnong-eup, Yeonggwang County, Jeollanam-do

Hydroelectric sites:

Hwacheon Dam in Gandong-myeon, Hwacheon County, Gangwon-do

Paldang site in Joan-myeon, Namyangju, Gyeonggi-do

Cheongpyong site in Oeseo-myeon, Gapyeong County, Gyeonggi-do

Uiam Dam in Sindong-myeon, Chuncheon, Gangwon-do

Chuncheon site in Sinbuk-eup, Chuncheon, Gangwon-do

Boseonggang site in Deungnyang-myeon, Boseong County, Jeollanam-do

Seomjingang site in Chilbo-myeon, Jeongeup, Jeollabuk-do

Goesan site in Chilseong-myeon, Goesan County, Chungcheongbuk-do

Gangneung site, Seongsan-myeon, Gangneung, Gangwon-do

Renewable-energy sites:

Hanbit Solar Park 1, 2 (3 MW), at the Hanbit site

Kori Wind Power (0.75 MW), at the Kori site

Hanbit Solar Park 3 (11 MW), at the Hanbit site

Yecheon Solar Power Plant (2 MW), in the Yecheon pumped-storage power plant

Kori Solar Power Plant (5 MW), at the Kori site

KHNP's Farming Solar Power Plant (73 kW), at the Cheongpyeong Hydropower Station

Gyeonggi Fuel Cell Power Plant (58.8 MW), Gveonggi-do, Hwaseong-si

Noeul Fuel Cell Power Plant (20 MW), in World Cup Park, Sangam-dong, Mapo-gu, Seoul

Busan Fuel Cell Power Plant (30.8 MW), in a group cogeneration complex in Haeundae-gu, Busan

Barakah nuclear power plant

On December 27, 2009, Emirates Nuclear Energy Corporation (ENEC) and KEPCO agreed to build four 1400 MWe Korean (APR-1400) nuclear power units in Barakah, United Arab Emirates. KEPCO carried out the project in partnership with KHNP, KEPCO E&C, KEPCO NF, Hyundai E&C, and Samsung C&T. In accordance with its joint project management agreement with KEPCO, KHNP provided manpower and technical support for construction management, in addition to training and licensing support.

KHNP sent skilled nuclear-power-plant operating personnel and provided services requested by ENEC under an operating support services agreement until the agreement ended on July 20, 2016. KHNP will continue to assign an average of 200 operators and engineers to the BNPP annually and provide requested services for 10 years after the completion of BNPP Unit 4. A consortium of KHNP and Korea Electric Power Corporation Plant Service & Engineering Co. (KEPCO KPS) signed a five-year maintenance contract for the BNPP in June 2019.

New markets

In Romania, KHNP implementing a technical-service project for a radioactive waste repository. The company also strengthened cooperation with nuclear power plant operators in the Czech Republic, Poland, Kazakhstan, and Bulgaria.

In 2025, KHNP announced it was withdrawing from the bid process for two new reactors at the Borssele Nuclear Power Station in the Netherlands. It had recently withdrawn from similar reactor selection processes in Sweden and Slovenia.

From Wikipedia’s article on Korea Hydro & Nuclear Power, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Parent company

Owners

From Wikidata.1

Timeline

  1. Apr 2, 2001Parent Directly consolidated by Korea Electric Power Corporation3
  2. Apr 2, 2001Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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