Fingrid is modernising old parts of the electricity network in Siikajoki and Liminka to connect wind power to the main grid

Investments in renewable wind power lay the foundations for the green transition while increasing the need to boost the main grid’s transmission capacity. Fingrid is reinforcing the electricity network in Siikajoki and Liminka to enable new wind power sites to connect to the main grid and transmit energy onward for consumption.

Current forecasts predict that up to 2,000 megawatts of new wind power capacity will be built in Finland every year this decade. Most of the new facilities will be built on the west coast and its northern sections. Approximately 300 megawatts of new wind power production will be connected to the substation in Siikajoki, adding to the more than 300 megawatts already connected. The total regional production capacity will, therefore, be approximately 600 megawatts. The 110-kilovolt network in the main grid must be strengthened from Siikajoki to the north to transmit the energy to consumption facilities.

Fingrid is modernising 27 kilometres of the 110-kilovolt transmission line between the Siikajoki and Pikkarala substations to maintain the system security of the ageing transmission line and increase the electricity transmission capacity. The existing section of the transmission line is suspended on wooden poles. When the modernisation is complete, the poles will be replaced by stronger steel towers carrying transmission lines with about twice the transmission capacity. The new section of the transmission line will be built in place of the existing one.

The land surveys and general planning required to build the transmission line will be completed this year. Construction will begin in the autumn, and the line will be commissioned in late 2024.

Further information:

Timo Kiiveri, Senior Vice President, Fingrid Oyj, tel. +35840 543 3039