Caverion to build a new 400 kV substation for Fingrid in Ostrobothnia and expand substations in Kajaani and Muhos – contract value EUR 18 million
Press release
10.4.2026 at 10.00 CET
Finland’s transmission system operator Fingrid Oyj and Caverion have signed contracts worth approximately EUR 18 million covering the construction of a new 400-kilovolt substation in Åbacka, Ostrobothnia, as well as expansion works at the 400 kV substations in Vuolijoki (Kajaani) and Pyhäselkä (Muhos).
Picture Pyhäjoki Valkeus 400/100 kV substation
The substations form part of Fingrid’s nationwide investment programme aimed at strengthening Finland’s electricity transmission capacity and ensuring the reliability of the national grid in response to growing electricity demand and the increasing share of renewable energy production.
The new Åbacka substation is a key element of the future transmission connections between Kristiinankaupunki and Nokia, improving the smooth flow of electricity in particular along Finland’s west coast. The expansions at the Vuolijoki and Pyhäselkä substations will enable the connection of new electricity consumers to the grid.
“The Åbacka–Nokia transmission connection project is a very important reinforcement of the national grid, enabling electricity to be transmitted from production surplus areas on the west coast to Pirkanmaa and more broadly to southern Finland. The new connection will also facilitate the integration of additional renewable energy into the grid. We are pleased to have a highly competent contractor to build the strategically important Åbacka substation,” says Daniel Kuosa, Head of Construction at Fingrid.
Caverion has extensive experience in high-voltage projects and has delivered several dozen 400 kV and 110 kV substation and transmission line projects in Finland in recent years. The company also plays a significant role in Finland’s security of supply and has a long-standing partnership with Fingrid.
“We see contracts related to substations and transmission lines as a strong vote of confidence from Fingrid. Through our expertise, we ensure that Finland’s security of supply and electricity infrastructure remain robust and reliable. In recent years, we have built nearly 30 new substations in Finland, modernised around 50 substations and delivered close to 50 transmission line projects of various sizes,” says Kari Aalto, Business Director, Industrial Projects and Infrastructure at Caverion.
Caverion will begin the required design work immediately, with construction scheduled to start in 2027. The new Åbacka substation is expected to be completed in 2028, and the expansions at the Vuolijoki and Pyhäselkä substations will also be completed in 2028.
Additional information for the media in Finland:
Anniina Kajasviita, Communications Manager, Caverion Finland, tel. +358 50 591 8312, anniina.kajasviita@caverion.com
About Caverion
Caverion is an expert for smart and sustainable built environments, enabling performance and people’s well-being. Customers can trust our expertise during the entire life cycle of their buildings, infrastructure or industrial sites and processes: from installation and maintenance of base and smart technologies, to managed services as well as advisory and engineering services and digital solutions.
About Assemblin Caverion Group
Assemblin Caverion Group is a leading northern European provider of technical services and installations, delivering smart and sustainable solutions in multiple technical expertise areas across the full lifecycle of the built environment. With around 20,000 skilled and committed professionals in nine countries, we help customers improve energy efficiency, sustainability and automation in buildings, infrastructure and industrial environments through our main brands, Assemblin and Caverion, alongside several other commercial and product brands. The Group generated SEK 41 billion (EUR 3.7 billion) in revenue over the last twelve months.
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