Harjavalta powerplant

Client Länsi-Suomen Voima Oy
Powerplant Harjavalta
Location Harjavalta
Head / Nominal flow 26,5 m / 360 m³/s
Post-project 460 m³/s
Power / Annual production 73 MW / 390 GWh/a
94 MW / 420 GWh/a

This project studies the hydrological situation regarding small hydropower plants Kolsi and Harjavalta, situated on the river Kokemäjenjoki, in order to propose improvements for more optimal use of generation potential. It draws out the best practice from a long-term experience of project implementations in Finland. Additionally, the variant with adding one more generating unit to the Harjavalta plant was studied in details.