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    Completion of the overhaul of the turbine at Haapakoski hydropower plant on the Iijoki river
    16.1.2025 News Power plant news Press releases

    Completion of the overhaul of the turbine at Haapakoski hydropower plant on the Iijoki river – Full regulation capacity restored

    The overhaul of the runner of the second turbine at PVO-Vesivoima’s Haapakoski power plant has been completed. Following successful test runs conducted at the beginning of January, the full capacity of both turbines at the pow…

    14.1.2025 News Power plant news Press releases

    ​​Tornionlaakson Voima Oy’s Portimokoski hydropower turbine to undergo major overhaul​ 

    Tornionlaakson Voima Oy’s Portimokoski hydropower plant, located on the Tengeliönjoki River, will undergo a major overhaul in the second half of 2026.  During the overhaul, the original turbine from 1987 will be refurbis…

    Haapakosken vesivoimalaitos
    20.9.2024 News Power plant news Press releases

    Turbine overhaul at the Haapakoski hydropower plant on the Iijoki river

    One of the two turbines at PVO-Vesivoima’s Haapakoski hydropower plant will undergo a major overhaul during autumn 2024. The work has commenced today and is expected to be completed by the end of the year.

    Maalismaa power plant in the river Iijoki
    4.9.2024 News Power plant news Press releases

    PVO-Vesivoima appeals decisions on stocking and fish stock management obligations for the Iijoki and Kemijoki rivers

    PVO-Vesivoima is seeking a change from the Vaasa Administrative Court regarding the decisions made by the Regional State Administrative Agency for Northern Finland on the stocking and fish stock management obligations for the Iijoki…

    Melo hydropower plant
    20.8.2024 News Power plant news Press releases

    Turbines of Melo hydropower plant renovated – PVO-Vesivoima’s investment decision will boost balancing power​

    Located at Nokianvirta on the Kokemäenjoki river in Nokia, both turbines of the Melo hydropower plant are to be renovated. PVO-Vesivoima made an investment decision on the renovation. Scheduled to start in June 2025, the project wi…

    Rauman Biovoima
    12.6.2024 News Power plant news Press releases

    Automation systems of Rauma biopower plant to be modernised

    The automation systems of Rauman Biovoima’s combined heat and power plant will be modernised in phases. In the first phase, the controls and regulators of the fuel conveyors will be replaced. The new equipment will be commissioned…

    Pohjolan Voima. Vas. Tommi Hansen-Haug PVO:lta ja Istvan Selek Kierikin voimalaitoksella suorittamassa testejä Hype säätövoima projektissa.
    27.5.2024 News Press releases

    The world’s most advanced turbine governor enhances hydropower’s balancing power ability – collaboration between PVO-Vesivoima and the University of Oulu lead to a patent application​ 

    PVO-Vesivoima and the University of Oulu have jointly developed a completely new type of turbine governor that can regulate the electricity production of hydropower plants significantly more accurately than before. In addition to ac…

    29.2.2024 News Power plant news Press releases

    Pohjolan Voima investigates building a pumped hydroelecric energy storage (PHES) in Kemijärvi

    Pohjolan Voima, one of Finland’s largest energy companies, is investigating the possibility of building a pumped-storage power station in the area of Lake Kemijärvi. Pumped-storage power stations are used in the mountain regions…

    Isohaara powerplant
    29.1.2024 News Power plant news Press releases

    PVO-Vesivoima and Caverion partnership continues with hydropower plants

    PVO-Vesivoima Oy and Caverion continue their partnership. Caverion will continue to be responsible for the operation and maintenance of PVO-Vesivoima’s hydropower plants on the Iijoki and Kemijoki rivers and Melo hydropower plant on…

    Kaukaan Voima power plant
    4.12.2023 News Power plant news Press releases

    Kaukaan Voima’s fly ash given by-product status – facilitates use in construction and fertilisation 

    Fly ash generated by the Kaukaan Voima power plant in Lappeenranta has been granted the status of a by-product used for deep stabilisation and as a forest fertiliser by the Centre for Economic Development, Transport and the Environm…

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