Siemens Gamesa to supply 5.X platform for 455MW onshore wind farm in Finland

Country’s largest project will install 69 SG 6.6-170 turbines, promising record-low levelised cost of energy

SG 6-6-170 prototype in Osterild, Denmark

Swedish developer OX2 has agreed to purchase 69 SG 6.6-170 wind turbines from Siemens Gamesa for the 455MW Lestijärvi project located in Central Ostrobothnia, Finland

The developer announced last week it would sell the project to a trio of Finnish companies but continue being responsible for its technical and commercial management under a 15-year agreement.

Construction is due to start imminently, with turbine installation scheduled for 2024 and commissioning expected in 2025. 

A total of 64 turbines will sit on 155-meter towers, and the other five will use 145-meter towers. 

The order, which includes a 35-year service agreement, is Siemens Gamesa’s second in Finland for the 5.X platform, following a deal for 14 SG 5.8-155 turbines for the 81MW Alajoki-Peuralinna site in central Finland signed late last year.

It is claimed the Lestijärvi project will be capable of achieving record-low levelised cost of energy (LCoE). Lestijärvi will be the largest wind farm in Finland by installed capacity and generate about 1.3TWh/year, representing roughly 2% of the country’s total electricity production.

According to the Finnish Wind Power Association, Finland aims to supply around 30% of its electricity demand from wind energy, up from around 7% in 2019.