Nordex will supply three N131 3MW turbines to the Muntila project and install them on 114-metre towers.
The turbines will be optimised for operation in cold climates, Nordex said. Delivery is expected to begin from September, and the deal includes 12-year servicing.
The order follows a 27MW contract between Nordex and ABO Wind announced in November. Nordex won the contract to supply nine N131 3MW turbines to the project near Jamijarvi, 90km north-west of Tampere, also in west Finland.
The German manufacturer said it installed roughly 130MW of turbines in Finland in 2016, around 22% of the market share.