The hydroelectric power industry is crucial for clean energy production. Companies here generate electricity by harnessing the natural flow of water, using dam systems and run-of-river plants. As the world focuses on sustainable solutions, this sector is rapidly evolving, incorporating advancements like energy storage and smart grid technologies. Innovations are helping to optimize efficiency and create minimal impact on ecosystems. Furthermore, partnerships between governments and private firms are reinforcing growth, signaling a promising future for hydroelectric power. Overall, this industry is pivotal in combating climate change and promoting renewable energy sources.

The companies featured in this list vary in size and expertise, from global giants like Hydro Québec to emerging players such as FirstLight Power. While most are privately held, they hail from key innovation hubs across several countries, including Canada, the United States, and Norway, each established to address the growing demand for sustainable energy. Initially founded as early as 1910 and extending through recent years, these firms specialize in hydroelectric generation, showcasing their commitment to renewable sources and sustainability. Their footprints in both local economies and international energy markets are noteworthy.

Continue reading to explore the top hydroelectric power companies.

Top 21 Hydroelectric Power Companies

1. Hydro Québec

• Website: hydroquebec.com
• Ownership type: Private
• Headquarters: Montreal, Quebec, Canada
• Employee distribution: Canada 100%
• Latest funding: Other (Debt), $362.3M, May 2025
• Founded year: 1944
• Headcount: 10001+
• LinkedIn: hydro-quebec

Hydro Québec is an electric utility based in Montreal, Quebec, Canada, primarily engaged in the production, transmission, and distribution of electricity. Founded in 1944, the company operates 62 hydroelectric plants, making it one of the largest producers of hydroelectric power in North America. Hydro Québec serves a wide range of customers, including residential, business, and municipal clients, and is dedicated to promoting sustainable energy solutions and energy efficiency. The company has a strong commitment to public engagement in energy initiatives, ensuring a reliable electricity supply while fostering community involvement. Recently, Hydro Québec secured a funding amount of approximately $362 million, indicating ongoing investment in its infrastructure and services.

2. Idaho Power

• Website: idahopower.com
• Ownership type: Private
• Headquarters: Boise, Idaho, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1916
• Headcount: 1001-5000
• LinkedIn: idaho-power-company

Idaho Power Company, based in Boise, Idaho, is a regulated electric utility that provides electricity generation, transmission, and distribution services to residential and commercial customers in eastern Oregon and southern Idaho. Founded in 1916, the company has established itself as a key player in the energy sector, particularly through its operation of hydroelectric dams and natural gas power plants. Idaho Power is dedicated to delivering reliable energy while also promoting energy efficiency programs. The company actively engages in environmental stewardship, focusing on the conservation of aquatic life and the protection of local ecosystems, particularly in relation to the Snake River. Its commitment to clean energy and sustainability is evident in its operational strategies and community involvement, making it a significant entity in the hydroelectric power industry.

3. Helgeland Kraft AS

• Website: helgelandkraft.no
• Ownership type: Private
• Headquarters: Norway
• Employee distribution: Norway 100%
• Founded year: 1946
• Headcount: 201-500
• LinkedIn: helgelandskraft-as

Helgeland Kraft AS is a private energy company based in Norway, founded in 1946. The company specializes in renewable energy production and electricity distribution, primarily serving households and businesses in the Helgeland region. With a workforce of approximately 127 employees, Helgeland Kraft operates 16 hydropower plants, contributing significantly to the local energy infrastructure. The company is dedicated to providing reliable electricity while promoting sustainable energy solutions. In recent years, Helgeland Kraft has invested in the development of new hydropower projects, including two new plants currently under construction. Their commitment to environmental stewardship is evident in their approach to integrating hydropower facilities with the natural landscape, ensuring minimal ecological impact. Helgeland Kraft also plays a vital role in the local economy, supporting community development through its energy services.

4. Skagerak Energi AS

• Website: skagerakenergi.no
• Ownership type: Private
• Headquarters: Porsgrunn, Telemark, Norway
• Employee distribution: Norway 100%
• Founded year: 1912
• Headcount: 501-1000
• LinkedIn: skagerak-energi

Skagerak Energi AS, based in Porsgrunn, Telemark, Norway, is a private utility company founded in 1912. With a workforce of approximately 600 employees, it serves around 176,000 grid customers, providing reliable energy solutions for both residential and commercial needs. The company is deeply committed to sustainability and innovation, operating numerous hydroelectric power plants that form the backbone of its energy production. Skagerak Energi is not only focused on hydroelectric power but also actively explores other renewable energy initiatives, including green hydrogen and solar energy. Their strategic vision for 2030 aims to enhance their hydroelectric capabilities while also expanding into new energy solutions, demonstrating their proactive approach in the energy sector.

5. Eagle Creek Renewable Energy LLC

• Website: eaglecreekre.com
• Ownership type: Corporate
• Headquarters: Bethesda, Maryland, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: August 2018
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: eagle-creek-renewable-energy-llc

Eagle Creek Renewable Energy LLC is a corporate entity based in Bethesda, Maryland, specializing in hydroelectric power generation. Established in 2010, the company operates 85 hydroelectric facilities across the United States, generating approximately 691 megawatts of capacity. This output translates to nearly 2.7 billion kilowatt-hours of clean electricity each year, enough to power over 260,000 homes. Eagle Creek is dedicated to environmental stewardship, actively working to minimize carbon emissions and enhance recreational opportunities at their facilities. The company has a history of acquiring, rehabilitating, and enhancing small hydroelectric plants, which has allowed them to grow their portfolio significantly. As a wholly-owned subsidiary of Ontario Power Generation, Eagle Creek continues to seek opportunities for further development and improvement in the renewable energy sector, particularly in hydroelectric power.

6. TIWAG-Tiroler Wasserkraft AG

• Website: tiwag.at
• Ownership type: Private
• Headquarters: Innsbruck, Tyrol, Austria
• Employee distribution: Austria 100%
• Founded year: 1924
• Headcount: 1001-5000
• LinkedIn: tiwag-tiroler-wasserkraft-ag

TIWAG-Tiroler Wasserkraft AG, based in Innsbruck, Tyrol, Austria, is an energy provider that specializes in electricity generation and distribution, primarily through hydropower. Established in 1924, the company has built a robust infrastructure to support sustainable energy solutions. TIWAG serves a wide range of customers, including residential consumers, businesses, and municipalities in Tyrol, ensuring they have access to clean and reliable energy. In addition to its core hydropower operations, TIWAG offers services such as e-mobility solutions, photovoltaic systems, and energy consulting. This multifaceted approach not only supports the local economy but also contributes to the broader goals of energy transition and sustainability. The company operates a network of hydropower plants, which play a crucial role in the region's energy supply, emphasizing its commitment to renewable energy sources.

7. Nam Theun 2

• Website: namtheun2.com
• Ownership type: Private
• Headquarters: Vientiane, Vientiane, Laos
• Employee distribution: Laos 96%, India 4%
• Founded year: 2002
• Headcount: 201-500
• LinkedIn: ntpc---nam-theun-2-power-company

Nam Theun 2 Power Company Limited, founded in 2002, is a private hydropower company based in Vientiane, Laos. It operates the Nam Theun 2 Hydroelectric Project, which was the largest infrastructure project in Laos at its inception. The company is a collaboration between the state-owned Lao Holding State Enterprise and private shareholders, including EDF Nam Theun Holding and Electricity Generating Public Company Limited. Nam Theun 2 is committed to generating electricity in a reliable and sustainable manner, contributing to the development of the Lao economy while ensuring environmental stewardship. The company has established a strong focus on community engagement, providing support to local populations affected by its operations. With a workforce of approximately 216 employees, Nam Theun 2 emphasizes the development of local talent through initiatives like its Fresh Graduates Program. The company is recognized for its operational excellence and adherence to international standards in quality, health, safety, and environmental management.

8. Uganda Electricity Generation Company Ltd

• Website: uegcl.com
• Ownership type: Private
• Headquarters: Kampala, Central Region, Uganda
• Employee distribution: Uganda 100%
• Founded year: 2001
• Headcount: 201-500
• LinkedIn: uegclofficial

Uganda Electricity Generation Company Ltd (UEGCL) is a private electric power generation company based in Kampala, Uganda. Established in 2001, UEGCL was formed to operate and maintain the generation stations previously managed by the Uganda Electricity Board. The company is responsible for several major hydro power projects, including the Karuma Hydropower Station, which has a capacity of 600 MW, and the Isimba Hydropower Station. UEGCL also oversees the Kiira and Nalubaale power stations, contributing significantly to Uganda's energy supply. In addition to power generation, UEGCL provides professional consulting, project management, and training services in hydro power systems, aiming to enhance operational efficiency and capacity in the sector. The company is fully committed to meeting the energy demands of both domestic consumers and regional markets, thereby playing a crucial role in the socio-economic development of Uganda.

9. PacifiCorp

• Website: pacificorp.com
• Ownership type: Corporate
• Headquarters: Portland, Oregon, United States (USA)
• Employee distribution: United States (USA) 99%
• Latest funding: $834.0M, September 2005
• Founded year: 1910
• Headcount: 5001-10000
• LinkedIn: pacificorp

PacifiCorp, founded in 1910 and based in Portland, Oregon, is an electric power company that provides energy generation and transmission services across the western United States. With a workforce of approximately 5,000 to 10,000 employees, the company operates a substantial portfolio of energy resources, including hydroelectric, wind, solar, thermal, and storage facilities. PacifiCorp is committed to meeting the energy needs of residential, commercial, and industrial customers while prioritizing environmental stewardship and community engagement. The company owns 10,833 megawatts of generation capacity, with hydroelectric facilities playing a crucial role in supplying electricity and meeting peak demands. Their Integrated Resource Plan outlines a long-term strategy for energy generation, emphasizing the importance of renewable sources, including hydroelectric power, in their overall energy strategy.

10. Snowy Hydro Limited

• Website: snowyhydro.com.au
• Ownership type: Private
• Headquarters: Cooma, New South Wales, Australia
• Employee distribution: Australia 100%
• Latest funding: Other (Grant), $6.3M, October 2017
• Founded year: 2002
• Headcount: 501-1000
• LinkedIn: snowy-hydro-limited

Snowy Hydro Limited, based in Cooma, New South Wales, is an energy provider that specializes in electricity generation and renewable energy solutions. Founded in 2002, the company operates a network of 16 power stations, boasting a total generation capacity of over 5,500 MW. Snowy Hydro serves more than 1.3 million customers through its retail operations, primarily under the brand Red Energy. The company is heavily involved in the hydroelectric sector, with its flagship project, the Snowy Scheme, being a cornerstone of Australia's energy infrastructure. The Snowy 2.0 initiative is a major expansion project that aims to link existing dams through a new underground power station, significantly increasing the company's hydroelectric output. Snowy Hydro is also committed to sustainability, having invested over $2 billion in renewable projects, including long-term contracts for wind and solar energy. This strategic focus on renewable energy positions Snowy Hydro as a key player in Australia's transition to a cleaner energy future.

11. Agder Energi AS

• Website: ae.no
• Ownership type: Private
• Headquarters: Kristiansand, Agder, Norway
• Employee distribution: Norway 93%, Germany 7%
• Founded year: 2005
• Headcount: 1001-5000
• LinkedIn: agder-energi-as

Agder Energi AS, founded in 2005 and based in Kristiansand, Norway, is a private energy company dedicated to renewable energy solutions. The company specializes in hydropower, solar power, and wind energy, providing electricity, heat, and energy management services to both consumers and businesses. Agder Energi aims to promote sustainable energy use and efficiency, with a strong commitment to increasing the production of renewable energy. The company operates primarily in Norway, where hydropower has been a cornerstone of the energy sector for over a century. With a workforce of around 242 employees, Agder Energi is focused on innovation and sustainability, striving to be at the forefront of the renewable energy transition in Norway and beyond.

12. Hidroelectrica

• Website: hidroelectrica.ro
• Ownership type: Private
• Headquarters: Bucharest, Bucharest, Romania
• Employee distribution: Romania 100%
• Founded year: 2000
• Headcount: 1001-5000
• LinkedIn: hidroelectrica-s-a

Hidroelectrica, established in 2000 and based in Bucharest, Romania, is an energy company focused on hydroelectric power generation. It is responsible for producing a significant share of Romania's electricity, serving both residential and commercial customers. The company operates several hydroelectric plants, including notable facilities like the Vidraru Hydroelectric Plant, which is currently undergoing modernization to enhance its efficiency and output. Hidroelectrica is committed to environmental responsibility and sustainable practices, aligning its operations with national energy goals. The company also engages in community initiatives and educational projects, reflecting its dedication to social responsibility. With a workforce of approximately 525 employees, Hidroelectrica plays a vital role in ensuring a stable and reliable energy supply in Romania.

13. FirstLight Power

• Website: firstlightpower.com
• Ownership type: Private
• Headquarters: United States (USA)
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: firstlight-power-resources-inc-

FirstLight Power is a private clean energy provider based in the United States, established in 2016. The company specializes in renewable energy production, particularly through its portfolio of hydroelectric facilities, which includes both conventional hydroelectric plants and pumped storage systems. FirstLight operates over 1.6 GW of clean energy assets across the Northeast, Ontario, and Québec, with a development pipeline exceeding 4 GW. Their flagship facility, the Northfield Mountain Pumped Hydro Storage Station, is notable for its capacity to power over a million homes. FirstLight is also involved in hybrid energy solutions, integrating hydroelectric power with solar and battery storage to enhance energy reliability and flexibility. The company emphasizes environmental stewardship and community engagement, managing over 14,000 acres of land around its facilities and providing recreational opportunities for the public.

14. Aydem Enerji

• Website: aydemenerji.com.tr
• Ownership type: Private
• Headquarters: Istanbul, İstanbul, Turkey
• Employee distribution: Turkey 100%
• Founded year: 1980
• Headcount: 10001+
• LinkedIn: aydem-enerji

Aydem Enerji, founded in 1980 and based in Istanbul, Turkey, is a private energy company that specializes in electricity generation, distribution, and retailing. The company has a strong focus on renewable energy sources, particularly hydroelectric power, and is committed to providing reliable electricity services to both residential and business customers. Aydem Enerji operates the first private hydroelectric power plant in Turkey, known as Bereket HPP, and has established itself as a significant player in the renewable energy market. With over 12,000 employees, the company emphasizes social responsibility and sustainability initiatives, aiming to contribute positively to the environment and society. Aydem Enerji's operations also extend to wind and geothermal energy, showcasing their commitment to a sustainable energy future.

15. Glitre Energi

• Website: glitreenergi.no
• Ownership type: Private
• Headquarters: Drammen, Buskerud, Norway
• Employee distribution: Norway 100%
• Founded year: 1999
• Headcount: 201-500
• LinkedIn: glitre-energi

Glitre Energi, now known as Å Energi, is a private energy company based in Drammen, Buskerud, Norway, founded in 1999. The company specializes in renewable energy solutions, with a strong emphasis on hydropower, which has been a cornerstone of their operations for over a century. Å Energi provides electricity, heating, and energy management services to both residential and commercial clients. Their mission is to promote sustainable energy use and efficiency, reflecting a commitment to environmental stewardship. The company is actively involved in expanding its hydropower production capabilities while also exploring innovations in solar power, offshore wind, and other renewable technologies. This multifaceted approach positions Å Energi as a significant player in the renewable energy sector, particularly in hydropower, where they continue to develop and manage projects that contribute to Norway's energy landscape.

16. Sarawak Energy

• Website: sarawakenergy.com
• Ownership type: Corporate
• Headquarters: Malaysia
• Employee distribution: Malaysia 100%
• Latest funding: August 2017
• Founded year: 1921
• Headcount: 5001-10000
• LinkedIn: sarawakenergy

Sarawak Energy Berhad is an electric utility company based in Sarawak, Malaysia, founded in 1921. The company specializes in power generation, transmission, and distribution, with a strong emphasis on renewable energy sources, particularly hydropower. Sarawak Energy operates several major hydroelectric plants, including the Bakun Hydroelectric Plant, which boasts an installed capacity of 2,400 MW, and the Baleh Hydroelectric Plant, which is currently under construction and will add 1,285 MW to the grid upon completion. The company serves a wide range of customers, from residential to commercial, ensuring a reliable electricity supply that supports regional development. Sarawak Energy is also committed to sustainability, actively engaging in corporate social responsibility initiatives and maintaining a focus on environmental stewardship.

17. Represas Patagonia

• Website: represaspatagonia.com.ar
• Ownership type: Private
• Headquarters: El Calafate, Santa Cruz, Argentina
• Employee distribution: Argentina 99%
• Founded year: 2013
• Headcount: 1001-5000
• LinkedIn: represas-patagonia

Represas Patagonia is a construction and energy company based in El Calafate, Santa Cruz, Argentina, founded in 2013. The company specializes in the development of hydroelectric power generation, particularly through the construction, operation, and maintenance of the Néstor Kirchner and Jorge Cepernic dams on the Santa Cruz River. These dams are pivotal for Argentina's energy landscape, providing renewable energy that supports regional development and economic growth. The company operates as a union of enterprises, collaborating with established firms like China Gezhouba Group Corporation, Eling Energía S.A., and Hidrocuyo, which brings extensive experience in large-scale energy infrastructure projects. Represas Patagonia is committed to generating clean energy while adhering to international environmental standards, and it actively engages with local communities to promote socio-economic benefits stemming from its projects.

18. Norte Energia

• Website: norteenergiasa.com.br
• Ownership type: Corporate
• Headquarters: Brazil
• Employee distribution: Brazil 100%
• Latest funding: $23.7M, October 2011
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: norte-energia-s-a-

Norte Energia is a Brazilian energy company founded in 2010, specializing in hydroelectric power generation. The company operates the Belo Monte hydroelectric plant, which is recognized as one of the largest hydroelectric facilities globally. Norte Energia is dedicated to providing clean and renewable energy solutions, focusing on competitive energy contracts tailored to meet the needs of businesses and organizations. The company emphasizes sustainable energy practices and has made significant investments in local communities, including education, health, and infrastructure projects. With a workforce of approximately 679 employees, Norte Energia is fully operational in Brazil, contributing to the country's energy landscape and promoting socio-economic development in the regions it serves.

19. Electricity Generation Company (Malawi) Ltd (EGENCO)

• Website: egenco.mw
• Ownership type: Private
• Headquarters: Blantyre, Southern Region, Malawi
• Employee distribution: Malawi 100%
• Founded year: 2016
• Headcount: 501-1000
• LinkedIn: electricity-generation-company-malawi-ltd-egenco

Electricity Generation Company (Malawi) Ltd (EGENCO) is a private electric utility based in Blantyre, Malawi, founded in 2016. The company was formed following the unbundling of the Electricity Supply Corporation of Malawi (ESCOM) into separate entities for generation and transmission. EGENCO is dedicated to generating electricity through various sources, primarily hydroelectric power. It operates four hydro power stations: Nkula, Tedzani, Kapichira, and Wovwe, which collectively contribute 390.55MW to its total installed capacity of 441.95MW. In addition to hydroelectric generation, EGENCO also manages thermal and solar power plants, reflecting its strategy to provide reliable energy to residential, commercial, and industrial customers. The company is actively involved in projects aimed at enhancing its power generation capacity and has plans for the rehabilitation of its existing power plants to ensure a stable electricity supply for Malawi.

20. Kraftwerke Hinterrhein AG

• Website: khr.ch
• Ownership type: Private
• Headquarters: Thusis, Grisons, Switzerland
• Employee distribution: Switzerland 100%
• Founded year: 1956
• Headcount: 1-10
• LinkedIn: kraftwerke-hinterrhein-ag

Kraftwerke Hinterrhein AG, based in Thusis, Grisons, Switzerland, is a private energy company that has been generating hydroelectric power since its establishment in 1956. The company operates one of the largest power plant combinations in the canton of Graubünden, producing around 1500 GWh of electricity each year. This output is sufficient to supply approximately 350,000 households, highlighting their significant role in the energy supply chain. Kraftwerke Hinterrhein AG emphasizes environmentally friendly energy solutions and actively engages with both residential and business customers in Switzerland and Italy. Their commitment to sustainability is further evidenced by their certification with the 'naturemade basic' label, which recognizes their adherence to ecological standards in energy production. The company operates multiple facilities, including the Bärenburg, Sufers, and Ferrera power plants, and is involved in various environmental initiatives to maintain the ecological balance in the regions they serve.

21. Hidroeléctrica de Cahora Bassa

• Website: hcb.co.mz
• Ownership type: Private
• Headquarters: Tete, Tete, Mozambique
• Employee distribution: Mozambique 100%
• Founded year: 1975
• Headcount: 501-1000
• LinkedIn: hidroelectricadecahorabassa

Hidroeléctrica de Cahora Bassa (HCB) is a hydropower generation company based in Tete, Mozambique, established in 1975. The company primarily focuses on producing electricity from the Cahora Bassa dam, which is a critical asset in the region's energy supply. HCB plays a vital role in providing electricity not only to Mozambique but also to neighboring countries like South Africa and Zimbabwe, contributing significantly to the socio-economic development of the region. The company operates under a concession agreement, managing and operating the dam, the HVDC transmission system, and associated infrastructure. HCB emphasizes sustainability and operational efficiency, adhering to international standards such as ISO 9001-2015 and OHSAS 18001-2007. With a workforce of around 388 employees, HCB is committed to enhancing its production capabilities and expanding its market reach, making it a key player in the hydroelectric power industry.

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