Power plants

In 2023, our 20 power plants produced a total of 4,622 GWh of electricity.

The hydropower plants located at the Kemijoki catchment area are mostly situated by the Kemijoki and Kitinen rivers. Therefore, it is natural that the largest power plants by water quantity are located in the lower reaches of the Kemijoki river’s main channel, below Rovaniemi. The seven power plants of the Kemijoki main channel are among the 10 largest hydropower plants in Finland.

Petäjäskoski, the first power plant built by Kemijoki Oy, is currently Finland’s second largest hydropower plant. It was completed in 1957. The most recent power plant, Kelukoski, was completed in 2001.

We invest in developing our production system

We improve security of production and eco-friendliness at our power plants through refurbishments.

Kemijoki area

  • Lokka

    Lokka

    Year built: 1967
    Head: 7–12 m
    Capacity: 0.1 MW
    Annual energy with mean water level: 0.4 GWh
    Machinery: 1

  • Porttipahta

    Porttipahta

    Year built: 1981
    Head: 30 m
    Capacity: 40.5 MW
    Annual energy with mean water level: 107 GWh
    Machinery: 1

  • Kurittukoski

    Kurittukoski

    Year built: 1987
    Head: 11 m
    Capacity: 15 MW
    Annual energy with mean water level: 42.8 GWh
    Machinery: 1

  • Vajukoski

    Vajukoski

    Year built: 1984
    Head: 16 m
    Capacity: 21 MW
    Annual energy with mean water level: 72.9 GWh
    Machinery 1

  • Matarakoski

    Matarakoski

    Year built: 1995
    Head: 7 m
    Capacity: 11 MW
    Annual energy with mean water level: 31.9 GWh
    Machinery: 1

  • Kelukoski

    Kelukoski

    Year built: 2001
    Head: 7 m
    Capacity: 11 MW
    Annual energy with mean water level: 38.1 GWh
    Machinery: 1

  • Kurkiaska

    Kurkiaska

    Year built: 1992
    Head: 12.5 m
    Capacity: 25,8 MW
    Annual energy with mean water level: 83.5 GWh
    Machinery: 1

  • Kokkosniva

    Kokkosniva

    Year built: 1990
    Head: 11.5 m
    Capacity: 26 MW
    Annual energy with mean water level: 80.1 GWh
    Machinery: 1

  • Seitakorva

    Seitakorva

    Year built: 1963
    Head: 17–24 m
    Capacity: 144 MW
    Annual energy with mean water level: 521.2 GWh
    Machinery: 2

  • Pirttikoski

    Pirttikoski

    Year built: 1959
    Head: 26 m
    Capacity: 152 MW
    Annual energy with mean water level: 604.2 GWh
    Machinery: 2

  • Vanttauskoski

    Vanttauskoski

    Year built: 1972
    Head: 22 m
    Capacity: 95 MW
    Annual energy with mean water level: 460.9 GWh
    Machinery: 2

  • Permantokoski

    Permantokoski

    Year built: 1961
    Head: 24 m
    Capacity: 13 MW
    Annual energy with mean water level: 50.5 GWh
    Machinery: 1

  • Valajaskoski

    Valajaskoski

    Year built: 1960
    Head: 11.5 m
    Capacity: 101 MW
    Annual energy with mean water level: 379.8 GWh
    Machinery: 3

  • Petäjäskoski

    Petäjäskoski

    Year built: 1957
    Head: 20.5 m
    Capacity: 182 MW
    Annual energy with mean water level: 707.6 GWh
    Machinery: 3

  • Ossauskoski

    Ossauskoski

    Year built: 1965
    Head: 15 m
    Capacity: 124 MW
    Annual energy with mean water level: 521 GWh
    Machinery: 3 (turbines)

  • Taivalkoski

    Taivalkoski

    Year built: 1976
    Head: 14.5 m
    Capacity: 134.1 MW
    Annual energy with mean water level: 562.3 GWh
    Machinery: 3

Lieksanjoki area

  • Pankakoski

    Pankakoski

    Year built: 1964
    Head: 10.2 m
    Capacity: 15.6 MW
    Annual energy with mean water level: 69 GWh
    Machinery: 2

  • Lieksankoski

    Lieksankoski

    Year built: 1960
    Head: 11.4 m
    Capacity: 18 MW
    Annual energy with mean water level: 79.6 GWh
    Machinery: 2

Kymijoki area

  • Anjalankoski

    Anjalankoski

    Year built: 1983
    Head: 9.7 m
    Capacity: 20 MW
    Annual energy with mean water level: 130 GWh
    Machinery: 1

  • Inkeroinen

    Inkeroinen

    Year built: 1922
    Head: 9.7 m
    Capacity: 17 MW
    Annual energy with mean water level: 80 GWh
    Machinery: 4

See also

Our operations

Pumped-storage power plants

Responsibility