Imatra is a 192MW hydro power project. It is located on Vuoksi river/basin in South Karelia, Finland. The project is currently active. It has been developed in multiple phases. The project construction commenced in 1922 and subsequently entered into commercial operation in 1928.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Hydropower 192 192 Active South Karelia, Finland Fortum


The project was developed by Fortum and is currently owned by Fortum Generation.

The gross head of the project is 24m. Imatra (Imatra Units 3 & 4) underwent through rehabilitation & modernization during 2014-2015.

Imatra (Imatra Active Units) consists of 5 turbines.

Imatra (Imatra Units 3 & 4) consists of 2 units of francis turbines with 38MW nameplate capacity.

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Development Status

The project construction commenced in 1922 and subsequently entered into commercial operation in 1928.

Contractors Involved

GE Renewable Energy supplied 3 electric generators for the Imatra (Imatra Active Units). The generator capacity is 24 MVA.

Koncar Generators and Motors supplied electric generator(s) for the Imatra (Imatra Units 3 & 4). The generator capacity is 34 MVA.

Maintpartner is the O&M contractor for the hydro power project.

About Fortum

Fortum Corp (Fortum) is a clean energy company that generates, distributes and sells heat and electricity. The company undertakes operation and maintenance of power plants; and offers energy-related services. Fortum’s operational assets include hydropower plants, condensing power plants, wind power plants, nuclear reactors and combined heat and power plants. It generates electricity from hydro, nuclear, natural gas, coal, biofuel, wind, solar, and waste derived fuels, among others. The company also offers district heating, nuclear safety and waste management services. It has operations in Estonia, Finland, Latvia, Poland, Russia, Lithuania, Norway, and Sweden, among others. Fortum is headquartered in Espoo, Finland.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.