Finland’s largest wind power plants produce electricity for S Group—the amount of solar power continues to grow steadily

Finland’s largest wind power plants produce electricity for S Group—the amount of solar power continues to grow steadily

S Group’s largest wind power investment, Sarvisuo Wind Farm in Simo, is almost at full production capacity already. The wind farm’s 27 wind power plants are new high-power stations developed by Vestas, so this wind farm alone produces approximately half of the entire retail group’s annual electricity need.


The total height of the Enventus V162 power plants at Sarvisuo Wind Farm is 247 metres. The height of the towers is 166 metres, and the diameter of the rotor is 162 metres. The total rated output of each power plant is 5.6 megawatts, and the total output of the wind farm is approximately 151 megawatts.

The construction of the park is an investment of approximately EUR 150 million. The annual production is expected to be up to 0.5 terawatt hours, which corresponds to approximately half of the entire S Group’s electricity need.

“After the implementation of these new power plants, S Group is one step closer to self-sufficiency in terms of the electricity we use. They guarantee that we produce through renewable energy sources the same amount of electricity as we use,” rejoices Managing Director Mikko Halonen from S-Voima.

The Sarvisuo project was launched in 2020 and is part of the Finnish state’s renewable electricity premium scheme as one of the winners of the 2018 production tendering. The tender was looking for production methods that were the most affordable for the society.

The wind power plants will still be adjusted this spring, and the wind farm will be operating at full capacity in the early summer.

S Group is number one in solar electricity

The number of solar panels placed on the roofs and around S Group’s properties passed 100,000 at the end of last year. The number will increase heavily this year.

“We are starting the next wave of construction together with the co-operatives this spring. According to our estimate, the production capacity of solar power will increase significantly in the next two years. This means that we will remain the largest producer and consumer of solar power,” Halonen explains.

Because of the weather, the production of solar power is at its highest in the summer months. According to Halonen, the emphasis on summer months in production is not an issue.

“Summer is also when our shops need the most cooling, so the production peak of solar power happens at the exactly right time. Solar power is best consumed locally.”

A couple of years ago, S Group released its strict climate goals with which the group will cut its climate emissions by 90% by the end of 2030, in comparison to 2015. Already in 2025, the entire group plans to make its own operations carbon negative, which means that it will sequester more carbon dioxide than it discharges into the atmosphere.

For more information, please contact:

Managing Director Mikko Halonen, S-Voima Oy, +358 (0)50 440 4811

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