VIIATTI wind farms
A major milestone for European energy independence.
VIIATTI wind farms
The VIIATTI wind farms comprise two major sites in the heart of Finland’s Ostrobothnia region, in the city of Kurikka: Matkussaari and Kalistanneva. Together, these 57 turbines will generate around 1 TWh of green electricity annually, equivalent to 1.2% of the country’s total yearly power consumption.
Commissioning these two wind farms marked a key milestone for VALOREM Group, boosting its installed capacity by 27% and establishing the company as an independent green power producer on a European scale.
Key stakeholders
Initiated in 2019, this project was developed by VALOREM.
The Matkussaari wind farm is owned by Matkussaari Wind Farm Oy, a company majority-owned by VALOREM. The Kalistanneva wind farm, meanwhile, has been owned since 2022 by a Finnish consortium comprising HELEN Oy, the city of Helsinki’s energy company, and the Ålandsbanken Wind Power Fund.
Construction of the two VIIATTI wind farms was carried out by VALREA, while VALEMO is responsible for operations and maintenance.
1 A major technical achievement
Construction of the two VIIATTI wind farms was a monumental undertaking, led by VALREA, VALOREM Group’s subsidiary specializing in transport, logistics, and construction of renewable energy facilities.
This large-scale project involved extensive electrical works, including the deployment of internal networks and substations, as well as the installation of a 40-kilometer overhead line (OHL) connecting Niinistönneva to Seinäjoki. In total, over 700 oversized convoys were coordinated over a 10-week period to deliver all the components needed for the 57 wind turbines.
2 Harnessing local climate conditions for optimized energy production
Operating the VIIATTI wind farms comes with specific challenges tied to Finland’s climate, particularly the formation of ice on turbine blades. In Finland, conditions conducive to icing extend from September through April, far longer than the periods typically observed in mainland France.
To better anticipate and manage these risks, VALEMO has partnered with Météo France to develop innovative tools capable of simulating ice accretion and melting on the blades. This approach helps secure the areas surrounding the wind farms and optimize energy production.
VIIATTI wind farms in video
Pictures of the wind farm
