The 400 kV Metsälinja overhead transmission line brings clean energy to the national grid

Fingrid’s power line called Metsälinja compensates for the diminishing electricity production in the heating plants of Southern Finland. The project helps keep prices throughout Finland uniform and allows for connecting clean energy to the existing national grid. We carried out sections B and C of the 310 kilometre-long Metsälinja power line project between Saarijärvi and Haapajärvi in Central Finland.

We dismantled the old 220 kV power line on a distance of about 100 kilometres. We built a total of 134 kilometres of the new 400 kV power line. Building the new power line involved new foundations, towers, and conductors as well as the delivery and installation of materials. In addition, we installed an optic fibre connection integrated into the ground wire for the whole distance.