Innergex Renewable Energy
Canadian renewable-energy developer, owner, and operator focused on run-of-river hydroelectricity, wind power, and solar generation.
Last updated August 26, 2026
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Overview
Innergex Renewable Energy is a Canadian independent renewable power producer that develops, owns, operates, and manages electricity-generating assets. Its principal technologies are run-of-river hydroelectricity, wind power, and solar power. The company originated in Quebec in 1990 as Innergex GP, following a provincial effort to encourage private-sector development of small hydroelectric facilities. It initially concentrated on developing and operating small hydro projects and later expanded through partnerships, acquisitions, and international development. The business is organized around electricity production from hydroelectric, wind, and solar facilities, together with site development and management. Rather than primarily selling equipment or consumer energy products, Innergex develops infrastructure, secures project rights and power-purchase arrangements, builds or finances facilities, and sells generated electricity to public or institutional purchasers under contractual or market arrangements. Its renewable portfolio has included run-of-river installations in Quebec and British Columbia, wind farms in Quebec and other North American markets, solar facilities, and international assets in France and Chile. During its early development, Innergex built or developed several Quebec hydroelectric projects, including Saint-Paulin, Chaudière, Batawa, Pontneuf 1-2-3, and Montmagny. In 2003, these assets were transferred into the Innergex Renewable Energy Income Fund, which was listed on the Toronto Stock Exchange. The company subsequently broadened its capabilities in wind power. In 2004 it partnered with TransCanada Corporation to compete for a major Hydro-Québec wind-power procurement process. Their Cartier Wind Energy joint venture secured long-term power-purchase agreements in 2005 for projects on Quebec's Gaspé Peninsula. Five of the six planned projects were constructed between 2006 and 2012; the 211.5 MW Gros-Morne Wind Farm was described as Canada's largest wind farm when commissioned in late 2012. Innergex's geographic reach expanded materially through the 2018 acquisition of Alterra Power Corporation. That transaction added renewable assets and development capabilities in Canada, the United States, Chile, and other markets, strengthening Innergex's position as a major independent renewable producer in British Columbia and Canada. In 2022, the company acquired the remaining 50% interest in Llaima Energía and Aela Energía, increasing its control of Chilean renewable-energy operations. These transactions complemented its original hydroelectric base with wind, solar, geothermal or other renewable development expertise associated with the acquired businesses, although the company's core public profile remains centered on hydro, wind, and solar generation. As described in the cited reference material, Innergex operated 28 renewable generation facilities consisting of 22 run-of-river hydro plants, five wind farms, and one solar farm, with a combined net capacity of approximately 577 MW on a net basis. Portfolio composition and capacity can change as projects are commissioned, sold, refinanced, or consolidated. The company has positioned itself around long-term ownership and operation of clean-energy infrastructure, emphasizing renewable generation, contractual revenue, local project development, and expansion into markets with supportive electricity and decarbonization policies. In February 2025, La Caisse announced a proposal to acquire Innergex in a transaction valued at approximately C$10 billion. The acquisition was completed on July 21, 2025, according to the supplied reference material. Following completion, Innergex ceased to be treated here as a publicly listed operating company, although the Innergex name and renewable-energy operations remain active. Its current identity is therefore that of a renewable infrastructure platform backed by La Caisse rather than an independently listed public issuer.
History
Innergex Renewable Energy began in Quebec in 1990 under the name Innergex GP. Its creation followed the Quebec government's invitation for private-sector proposals to develop small hydroelectric generating facilities. The company developed four projects of its own—Saint-Paulin, Chaudière, Batawa, and Pontneuf 1-2-3—and acquired the Montmagny project. These assets formed the foundation of a business model based on developing, owning, and operating renewable infrastructure rather than manufacturing power equipment. In 2003, the initial hydroelectric assets were transferred into the Innergex Renewable Energy Income Fund, which listed on the Toronto Stock Exchange. This structure gave the business access to public capital while preserving its focus on long-lived renewable-energy assets. Innergex then expanded beyond small hydro. In 2004 it formed Cartier Wind Energy with TransCanada Corporation, holding a 38% interest, to respond to a Hydro-Québec call for tenders seeking 1,000 MW of wind power. Cartier signed 20-year power-purchase agreements in 2005 for 739.5 MW across six locations on Quebec's Gaspé Peninsula. Construction of the Cartier portfolio proceeded between 2006 and 2012, with five of the six planned projects completed. The 211.5 MW Gros-Morne Wind Farm entered service in late 2012 and was regarded at that time as Canada's largest wind farm. The wind program established Innergex as a significant participant in utility-scale renewable generation and diversified the company away from its original hydroelectric base. The company continued to expand through acquisitions and international projects. Its 2018 purchase of Alterra Power Corporation was a major turning point, adding renewable assets and development expertise and making Innergex the largest independent renewable-energy producer in British Columbia. The transaction also strengthened its presence in the United States, Chile, and other international markets. Innergex later increased its ownership of Chilean operations by acquiring the remaining 50% of Llaima Energía and Aela Energía in 2022. Innergex's operating model has four principal areas: hydroelectric production, wind-power production, solar-power production, and site development and management. The production businesses sell electricity generated by operating facilities to publicly owned entities and other purchasers. The development and management business advances projects toward operation and manages renewable sites once they are active. This integrated model allows Innergex to participate across the project life cycle, from site identification and permitting to construction, operations, and contracted power sales. The company's portfolio has included projects in Quebec, Ontario, British Columbia, and Idaho, as well as facilities and interests in France and Chile. The cited reference describes 28 operating renewable generation facilities comprising 22 run-of-river hydro plants, five wind farms, and one solar farm, with combined net capacity of 577 MW. These figures are time-sensitive and should be checked against current company disclosures when a current portfolio inventory is required. In February 2025, La Caisse announced an offer to acquire Innergex in a transaction valued at approximately C$10 billion. The supplied reference material reports that the transaction closed on July 21, 2025. The acquisition moved Innergex from its previous Toronto Stock Exchange-listed structure into private ownership by La Caisse, while retaining the Innergex operating brand and its renewable-energy platform. The company remains active in developing and operating renewable power assets across its international markets.
- 2025
La Caisse completes acquisition
[1]According to the supplied reference material, La Caisse completed its acquisition of Innergex on July 21, 2025.
- 2022
Chilean ownership is expanded
[1]Innergex acquired the remaining 50% of Llaima Energía and Aela Energía.
- 2018
Alterra Power Corporation is acquired
[1]The acquisition materially expanded Innergex's asset base and made it the largest independent renewable producer in British Columbia.
- 2012
Gros-Morne Wind Farm is commissioned
[1]The 211.5 MW Gros-Morne project entered operation and was described as Canada's largest wind farm at commissioning.
- 2005
Cartier secures Gaspé wind contracts
[1]Cartier signed 20-year power-purchase agreements covering 739.5 MW from six proposed wind sites on the Gaspé Peninsula.
- 2004
Cartier Wind Energy partnership is formed
[1]Innergex and TransCanada created Cartier Wind Energy to pursue a major Hydro-Québec wind-power procurement process.
- 2003
Renewable-energy income fund is listed
[1]Innergex's initial hydroelectric assets were transferred into the Innergex Renewable Energy Income Fund, which listed on the Toronto Stock Exchange.
- 1990
Innergex is founded in Quebec
[1]Gilles Lefrançois founded Innergex GP to pursue private-sector development of small hydroelectric facilities in response to a Quebec government initiative.
Products and positioning
Innergex positions itself as a long-term independent renewable power producer and infrastructure owner. Its model combines project development, construction oversight, asset ownership, operations, and electricity sales, with an emphasis on hydroelectric, wind, and solar generation.
Hydroelectric generation · 1990
Run-of-river hydroelectric facilities
Innergex's original and historically important business is the development and operation of run-of-river hydroelectric facilities. These projects generate electricity from naturally flowing water with limited reservoir storage, and have included small hydro assets in Quebec and larger facilities in British Columbia and other markets. The company develops sites, arranges project structures, manages operations, and sells the resulting electricity under power-purchase or other contractual arrangements.
Wind power generation · 2004
Wind farms
Wind power became a major part of Innergex's portfolio through the Cartier Wind Energy partnership with TransCanada and subsequent development and acquisition activity. The Gaspé Peninsula program produced several utility-scale projects under long-term Hydro-Québec agreements, including Gros-Morne. Innergex's wind business covers project development, ownership interests, operational management, and sale of generated electricity rather than consumer-facing turbine products.
Solar power generation
Solar farms
Solar generation is one of Innergex's reportable production segments. The company develops, owns, and operates utility-scale solar facilities and sells the electricity they produce. Solar complements the company's hydroelectric and wind assets by broadening its renewable technology mix and allowing it to participate in markets where solar irradiation, procurement programs, or grid conditions support photovoltaic development.
Renewable project services · 1990
Site development and management
Innergex's site development and management activities cover the progression of renewable projects toward commercial operation and the management of operating facilities. Activities can include identifying sites, advancing permits and approvals, structuring projects, coordinating construction, and overseeing assets after commissioning. This capability supports the company's role as an integrated renewable-energy developer and long-term infrastructure owner.
Brand decisions
2025
Accept La Caisse acquisitionM&ABackground
La Caisse proposed to acquire Innergex as a long-term renewable-infrastructure investment.
Action taken
La Caisse announced a bid in February 2025 and, according to the supplied reference material, completed the acquisition on July 21, 2025.
Aftermath
Innergex moved from public-market ownership to ownership by La Caisse while continuing to operate as a renewable-energy platform.
Transaction value. Approximately C$10 billion announced transaction value (2025)
2022
Increase ownership of Llaima Energía and Aela EnergíaM&ABackground
Innergex sought greater control over its Chilean renewable-energy platform.
Action taken
It acquired the remaining 50% interests in Llaima Energía and Aela Energía.
Aftermath
Innergex increased its ownership and control of renewable-energy operations in Chile.
2018
Acquire Alterra Power CorporationM&ABackground
Innergex pursued scale, additional renewable technologies, and broader geographic reach in North America and international markets.
Action taken
The company acquired Alterra Power Corporation.
Aftermath
The transaction made Innergex the largest independent renewable-energy producer in British Columbia and among the largest in Canada.
2004
Enter utility-scale wind power through Cartier Wind EnergyStrategyBackground
Innergex sought to diversify beyond its Quebec hydroelectric base and pursue a large Hydro-Québec wind-power procurement process.
Action taken
It formed Cartier Wind Energy with TransCanada Corporation and held a 38% interest in the joint venture.
Aftermath
The partnership secured long-term contracts for 739.5 MW and led to the construction of five wind projects on Quebec's Gaspé Peninsula.
Recent events
Innergex announces acquisition of San Andrés solar farm[3]
Reported:
Innergex announced the acquisition of the 50.6 MW San Andrés solar farm in northern Chile for a total purchase price of US$25.7 million (CAN$32.7 million), net of cash.
Innergex completes sale of Flat Top wind farm interest[4]
Reported:
Innergex Renewable Energy Inc. announced that it had completed the sale of its 51% interest in the Flat Top wind facility in Texas. The purchase price was undisclosed and described as non-material.
- Unconfirmed
Innergex completes acquisition of six U.S. wind farms[5]
Reported:
Innergex completed the Mountain Air Acquisition, acquiring six operating wind farms in the United States.
- Unconfirmed
Innergex acquires six Idaho wind farms[6]
Reported:
Innergex Renewable Energy acquired six operating wind farms in Elmore County, Idaho, from Terna Energy for $77.3 million. The farms have a combined installed capacity of 138 megawatts.
Sources7 sources
- 1Innergex Renewable Energyen.wikipedia.org
- 2Innergex Renewable Energy official websiteinnergex.com
- 3Innergex宣布收购San Andrés太阳能电站newswire.ca
- 4Innergex完成Flat Top风电场权益出售newswire.ca
- 5Innergex完成收购美国六座风电场renewableenergymagazine.com
- 6Innergex收购爱达荷州六座风电场canadianmanufacturing.com
- 7Innergex Announces The Acquisition Of A 50.6 MW Solar Farm In Chilepoweronline.com
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