Doosan Enerbility
South Korean heavy-industry and energy company supplying power-generation, nuclear, water-treatment, desalination, and industrial equipment.
Last updated August 31, 2026
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Overview
Doosan Enerbility Co., Ltd. is a South Korean heavy-industrial and energy company headquartered in Changwon. Formerly known as Doosan Heavy Industries & Construction, the company traces its origins to 1962 and has developed from a domestic industrial enterprise into an international supplier of equipment, engineering, procurement, construction, and service capabilities for the power and water industries. The name Doosan Enerbility combines the ideas of energy and sustainability and reflects the company’s repositioning around energy-transition and infrastructure technologies. Its business has historically covered the manufacture and construction of nuclear power plants, thermal and combined-cycle power facilities, turbines, generators, nuclear steam-supply components, castings, forgings, and seawater desalination plants. The company has also participated in water-treatment engineering and energy-storage software through acquisitions and affiliated operating businesses. Its product and project portfolio has therefore extended across conventional power generation, nuclear power, large industrial components, desalination, water processing, grid-scale energy storage, and related engineering services. The company expanded materially during the 2000s. It integrated with other domestic power-industry businesses in 1999 and became publicly listed in South Korea in 2000. In 2001, Korea Heavy Industries and Construction was renamed Doosan Heavy Industries & Construction. During that period, it established a strong position in the global desalination market and was recognized in Korea’s government-backed Global Product program. International growth followed through the acquisition of Kvaerner IMGB in Romania and Mitsui Babcock in the United Kingdom in 2006, the construction of the Doosan VINA manufacturing plant in Vietnam, the acquisition of Škoda Power in the Czech Republic in 2009, and further expansion in India, the United Kingdom, the United States, and the Middle East. Nuclear power became another important area of international activity. Doosan supplied reactor vessels and steam generators for Westinghouse AP1000 reactors in the United States and later supplied major equipment for the Barakah nuclear power project in the United Arab Emirates. In 2010, Korea Electric Power Corporation awarded the company a major equipment-supply contract for four UAE nuclear reactors. The company has also supplied equipment and construction services for thermal power stations in Vietnam, South Korea, and other markets. Water infrastructure remains a core capability. Doosan developed large seawater desalination facilities, opened water research centers in Dubai and Tampa, acquired the assets of British water-process engineering company Enpure in 2012, and delivered desalination and water-treatment facilities in Chile, the United Kingdom, and Oman. In parallel, the company invested in newer energy technologies. It acquired Seattle-based 1Energy Systems in 2016 and formed Doosan GridTech, which focused on energy-storage-system control software. Doosan also developed a large gas turbine program beginning in 2013; development of a 215-to-299.9-megawatt class turbine was completed in 2019, and a 270-megawatt model entered commercial operation at the Gimpo Combined Heat and Power Plant in South Korea in 2023. Doosan Enerbility’s present positioning is that of an integrated energy and industrial-infrastructure provider. Rather than operating primarily as a consumer-facing brand, it serves utilities, governments, engineering contractors, industrial customers, and project owners. Its competitive proposition rests on large-scale manufacturing, engineering and construction expertise, nuclear and thermal-generation know-how, heavy-component production, desalination, and the development of lower-carbon and flexible-generation technologies.
History
Doosan Enerbility was established in South Korea in 1962 under the name Korea Heavy Industries and Construction. Its early development was tied to the expansion of South Korea’s industrial base and domestic power infrastructure. In 1999, the company was integrated with several other domestic power-industry businesses. It was listed on the Korean stock market in 2000, and in 2001 it adopted the name Doosan Heavy Industries & Construction after becoming part of the Doosan Group’s industrial portfolio. During the early 2000s, the company strengthened its international profile in power equipment and desalination. It was recognized as a leading participant in the global desalination market and was selected as a Korean Global Product. To support overseas activity, it established water research centers in Dubai and Tampa. In 2006, it acquired Kvaerner IMGB, a Romanian heavy-equipment manufacturer now associated with Doosan IMGB, and Mitsui Babcock, a British power-systems company now associated with Doosan Babcock. These acquisitions expanded its manufacturing, engineering, and service footprint in Europe and the Middle East. Doosan began construction of its Doosan VINA manufacturing facility in Vietnam in 2007, with the plant completed in 2009. It also expanded its nuclear and power-equipment business. In 2008, the company signed an agreement to supply reactor vessels and steam generators for two Westinghouse AP1000 reactors in the United States. In 2009, it acquired Škoda Power in the Czech Republic, adding turbine and power-system capabilities. In 2010, Korea Electric Power Corporation awarded Doosan a major contract to supply equipment for four nuclear reactors planned for the United Arab Emirates’ Barakah project. The company subsequently delivered a reactor for that project in 2015. Further international expansion followed in India and the United Kingdom. In 2011, Doosan acquired AE&E Chennai Works, which became Doosan Power Systems India. In 2012, it acquired the assets of Enpure, a British water-process engineering business, to form Doosan Enpure. Its water business delivered desalination facilities for Escondida in Chile in 2015 and won water-treatment tenders in the United Kingdom and Oman. Its power-construction work during the same period included projects in Vietnam and South Korea. The company also pursued technologies associated with the changing electricity system. In 2016, it acquired 1Energy Systems, a Seattle-based developer of energy-storage-system control software, and formed Doosan GridTech. Separately, it developed a large gas turbine for power generation, beginning the program in 2013 and completing development in 2019. A 270-megawatt version was installed at the Gimpo Combined Heat and Power Plant and began commercial operation in 2023. The corporate brand was later changed from Doosan Heavy Industries & Construction to Doosan Enerbility. The new name expresses a combination of energy and sustainability and signals a broader focus on power, nuclear technology, water, turbines, industrial manufacturing, and energy-transition infrastructure. The company remains a project-oriented business serving utilities, public-sector infrastructure owners, industrial customers, and engineering contractors rather than a conventional consumer brand.
- 2023
270-megawatt gas turbine enters commercial operation
[1]A 270-megawatt Doosan gas turbine installed at the Gimpo Combined Heat and Power Plant began commercial operation.
- 2019
Large gas-turbine development completed
[1]The company completed development of a large gas turbine in the 215-to-299.9-megawatt class.
- 2016
Doosan GridTech established
[1]Doosan acquired 1Energy Systems in the United States and formed Doosan GridTech to develop energy-storage control software.
- 2012
Doosan Enpure formed
[1]The company acquired the assets of UK water-process engineering business Enpure and formed Doosan Enpure.
- 2011
Expansion in India
[1]Doosan acquired AE&E Chennai Works, later known as Doosan Power Systems India.
- 2010
UAE nuclear equipment contract
[1]Korea Electric Power Corporation awarded Doosan a contract to supply equipment for four nuclear reactors planned for the United Arab Emirates.
- 2009
Škoda Power acquisition
[1]Doosan acquired Czech power-systems maker Škoda Power, strengthening its turbine and power-equipment capabilities.
- 2007
Doosan VINA construction begins
[1]Construction began on the company’s manufacturing plant in Vietnam.
- 2006
European acquisitions and water research expansion
[1]The company acquired Kvaerner IMGB and Mitsui Babcock and established water research centers in Dubai and Tampa.
- 2001
Renamed Doosan Heavy Industries & Construction
[1]Korea Heavy Industries and Construction adopted the Doosan Heavy Industries & Construction name.
Products and positioning
An integrated global energy and heavy-industrial infrastructure provider spanning power-generation equipment, nuclear technology, desalination, water treatment, industrial components, and energy-transition systems.
Nuclear energy
Nuclear power equipment
Doosan supplies major nuclear-island and steam-supply components, including reactor vessels and steam generators. Its nuclear equipment has been associated with projects using Westinghouse AP1000 technology in the United States and with the Barakah nuclear power project in the United Arab Emirates. The business combines heavy-component manufacturing with engineering and project-delivery capabilities.
Power-generation equipment · 2019
Gas turbines
Doosan develops and manufactures large gas turbines for utility and combined-heat-and-power applications. Its large-turbine development program began in 2013, was completed in 2019, and produced a 270-megawatt model that entered commercial operation at Gimpo Combined Heat and Power Plant in 2023.
Power-generation equipment
Steam turbines and generators
The company manufactures turbines and generators for thermal, nuclear, and other power-generation facilities. These products form part of its broader power-plant engineering and construction offering and are supplied to large infrastructure projects rather than sold through consumer channels.
Water infrastructure
Seawater desalination plants
Doosan designs, builds, and supplies large desalination facilities, with a historical emphasis on seawater desalination for municipal and industrial customers. Its desalination activities include international projects in the Middle East, Chile, and other markets, supported by water research and engineering operations.
Water infrastructure · 2012
Water-treatment systems
Through its water-process engineering activities, including the business formed from Enpure assets, Doosan provides water-treatment engineering and project services. These capabilities have supported tenders and projects in the United Kingdom, Oman, and other international markets.
Heavy industrial components
Industrial castings and forgings
Doosan manufactures large castings and forgings used in power-generation and heavy-industrial applications. This capability supports its nuclear, thermal-power, turbine, and other large-equipment businesses by providing critical metal components for major infrastructure projects.
Energy storage and grid technology · 2016
Energy-storage control software
Through Doosan GridTech, formed after the acquisition of 1Energy Systems, the company developed control software for energy-storage systems. The offering extends Doosan’s portfolio beyond physical power equipment into digital controls for grid-scale storage and flexible electricity infrastructure.
Brand decisions
2020
Repositioned the corporate brand as Doosan EnerbilityStrategyBackground
The company sought to express a broader focus on energy and sustainability beyond its former heavy-industrial name.
Action taken
Doosan Heavy Industries & Construction adopted the Doosan Enerbility identity, combining the concepts of energy and sustainability.
Aftermath
The renamed brand presents the company as an energy-transition and infrastructure provider while retaining its nuclear, thermal, water, turbine, and heavy-manufacturing businesses.
2016
Acquired 1Energy Systems and formed Doosan GridTechM&ABackground
The electricity sector was developing greater demand for grid flexibility and energy-storage management software.
Action taken
Doosan acquired Seattle-based 1Energy Systems and established Doosan GridTech.
Aftermath
The transaction broadened the company’s portfolio into energy-storage-system controls and digital grid infrastructure.
2001
Adopted the Doosan Heavy Industries & Construction nameStrategyBackground
Following the company’s integration into the Doosan Group’s industrial portfolio, the former Korea Heavy Industries and Construction identity was replaced.
Action taken
The company changed its corporate name to Doosan Heavy Industries & Construction.
Aftermath
The new identity linked the business to Doosan Group while it expanded internationally in power generation, nuclear equipment, and desalination.
Recent events
- Unconfirmed
Posco and Doosan agree to develop ammonia-derived hydrogen technology[3]
Reported:
Posco and Doosan Heavy Industries & Construction agreed to jointly develop ammonia hydrogen extraction technology and gas turbines that use hydrogen as fuel. Posco will produce and supply ammonia and develop the cracker; Doosan will develop and produce the gas combustion burner and hydrogen-powered gas turbine.
- Unconfirmed
Doosan Heavy Industries signs offshore wind cooperation deal with North Jeolla Province[4]
Reported:
Doosan Heavy Industries & Construction Co. signed a deal with the government of North Jeolla Province to cooperate on a 2.4-gigawatt offshore wind farm planned for completion by 2028. The company is to build the wind farm and provide and maintain its wind power generators; the local government will provide administrative support.
Sources4 sources
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