The new Arkkukallio substation will be a significant connecting point for wind power

by May 17, 2021

To supply clean energy generated by several wind power projects that are currently under construction to the south of Kristinestad, Fingrid has announced the construction of the Arkkukallio substation in Kärjenkoski, a village in the municipality of Isojoki. The 400/110 kV Arkkukallio substation will be built in the middle of the wind power projects. Where around 500 MW of new wind power will be connected to the Arkkukallio substation by the end of 2024, and approximately 800 MW will be connected by the end of 2028. Due to the large number of connections, the Arkkukallio substation will be larger than normal from the outset, with two 400 MVA main transformers. This will ensure that the substation has sufficient transmission capacity and operational performance to address the evolving needs of the region.

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