The company owns and operates the Harjavalta hydropower plant on the Kokemäenjoki, completed in 1939. Its three vertical Kaplan turbines have a combined capacity of 105 MW, with annual production of around 490 GWh and a head of 26.5 metres.
Architect Erik Bryggman's functionalist plant building is part of a nationally significant cultural environment. The plant is operated remotely from an energy control centre. Dam safety is monitored through annual and five-yearly inspections under ELY Centre supervision.
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