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Leppävirta In operation

Tetrituuli in numbers

10 MW

Total power


Number of turbines

147 m

Hub height


Operational since


To date, we have been developing the Tetrituuli wind farm for five years. In this time, we’ve worked hard to finalise the permits and arranged financing for the project. The wind farm’s construction was completed in October 2017 and it’s been producing clean energy ever since.


In charge of the construction, we delivered the wind farm turn-key on an EPC basis. Our key partner in this was Vestas, who delivered the necessary V126-3,45MW turbines with 147-metre high towers.

Finance and management

In addition to the development and construction, we oversee the technical and commercial management of the wind farm via our sister company, Ilmatar Service Oy.

To learn more about the project, please contact:

Seppo Hakola
Ilmatar Services Oyj
Head of Asset Management
+358 40 584 8250