Hydropower

The modernisation works of the stator of the Raasakka hydropower plant’s second generating unit have begun on the Iijoki river. The investment will strengthen the power plant’s reliable production and control capabilities and is a p…

To celebrate its 80th anniversary, Pohjolan Voima had an open day at the Jumisko hydropower plant in Kemijärvi on Thursday, 29 June 2023. Modern hydropower reconciles electricity production with the needs of nature and people.

Modern hydropower is an essential part oh the nordic electricity system. Modern hydropower involves developing new innovations that are actively used in production. Moden hydropower is a responsible choice for both the environment a…

In June, Natural Resources Institute Finland (Luke) investigates the functionality of a downstream migration route for salmon fry near the Haapakoski hydropower plant on the Iijoki river. The monitoring area also covers the area ups…

The dam bridge of the Melo hydropower plant in Nokia is once again open for bicycle and pedestrian traffic. The renovation work that closed the earth dam for a long time have ended, and the finishing work for the area after the clos…

Installation work for the Kalasydän fishway has started at the Pohjolan Voima power plant in Raasakka, located on the Iijoki river. The new fishway is planned for deployment in June, after the spring floods. The new solution is par…

Kemijoki Oy and PVO-Vesivoima Oy are renewing the operations of Voimalohi Oy, owned jointly by the two companies. In the future, Voimalohi’s scope of operation will expand to cover the development and implementation of actions in…

The hydraulic fishway Fishheart will be in use at the lowermost power plant on the Iijoki river, PVO-Vesivoima Oy’s Raasakka power plant, from 2023 to 2025. The system will be used not only as a migration solution for fish to bypa…

PVO-Vesivoima is planning the commissioning of a 3 MW ultracapacitor at its Kierikki power plant on the Iijoki river. An ultracapacitor is a short-term energy reserve that improves the performance of a hydropower plant and meets the…

The first bored pile wall used to seal an earth dam in Finland was constructed at the Melo hydropower plant on the Kokemäenjoki river in Nokia. The project involved the deepest bored pile wall structure in Finland, as well as the l…