Both wind farms will feature V126-3.3MW turbines installed on new large-diameter steel towers, which allow for greater hub heights.
The developer has chosen Vestas to install 22 of the turbines on its 73MW Kalakoji project in cental Finland.
Delivery of the turbines will begin in the fourth quarter of 2014 and the project is expected to be completed in the third quarter of 2015.
TuuliWatti Oy is also developing the 26MW Siikainen project in southern Finland, which will feature eight of the turbines. Construction will begin in the third quarter and is expected to be commissioned in early 2015.
Both deals include a five-year service agreement with options for two extensions of five years.