Hydropower plants on the river Kymi

The hydropower plants on the river Kymi are located in Ahvenkoski, Mankala, Klåsarö and Ediskoski.

The output of old plants is upgraded with new technology.

  • What: electricity
  • What from: hydro power
  • Where: in Ahvenkoski, Mankala, Kåsarö and Ediskoski
  • When: built in 1931–1990
  • How much: 60 MW

Ahvenkoski

See also


Power plants

Our power plants are located in various parts of Helsinki. Find out more about our power plants!


Vuosaari power plants


Hanasaari power plant


Salmisaari power plant


Heating plants


Katri Vala heating and cooling plant


Esplanade heating and cooling plant


Kellosaari reserve power plant

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