🇫🇮 🇸🇪 The transmission capacity between Finland and Northern Sweden will increase when the Aurora Line transmission link is completed

The Aurora Line transmission link is the most important investment in the main grid this decade. It will increase the transmission capacity from Northern Sweden to Finland by 800 megawatts and from Finland to Northern Sweden by 900 megawatts.

The 400-kilovolt Aurora Line transmission link between Finland and Northern Sweden will be completed by the beginning of 2026. When the connection is completed, the commercial cross-border transmission capacity will be 2,000 megawatts from Northern Sweden to Finland and from Finland to Northern Sweden. The transmission capacity from Sweden to Finland will increase by 800 megawatts, and the capacity from Finland to Sweden will rise by 900 megawatts.

Fingrid has published a market announcement on the cross-border capacity in the Nordic NUCS system (link).

What is the Aurora Line?

The 400-kilovolt Aurora Line transmission link is the most important investment in Finland’s main grid this decade. It will strengthen the electricity transmission capacity between Finland and Northern Sweden.

The Aurora Line is a joint project between Fingrid and Sweden’s transmission system operator, Svenska kraftnät, to improve the security of the electricity supply and power system’s robustness to tolerate disturbances. Increasing the transmission capacity between the bidding zones will also reduce the difference in regional electricity prices and dampen electricity price fluctuations in both countries.

The Aurora Line will enable more renewable electricity production, not only in Finland and Sweden, but also in the Baltic Sea region. The investment will promote the green transition, enabling more efficient transmission of weather-dependent electricity production across borders.

When the Aurora Line is completed, it will run from the Pyhänselkä substation in Muhos, Finland, to Messaure in Sweden. The 380-kilometre transmission line is being built in phases. Construction began on the first phase in autumn 2022 in Finland. The connection is expected to be fully completed by the start of 2026.

Further information:

Mikko Piironen, Unit Manager, tel. +358 30 395 4338
Email addresses are in the form [email protected]

Originally published on 25 September by Fingrid.

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