​​Fenno-Skan 3​

Project details

Fingrid and the Swedish transmission system operator, Svenska kraftnät, are jointly planning a new electricity transmission line between Finland and Sweden. 

The transmission system operator Fingrid Oyj, in cooperation with the Swedish transmission system operator Svenska kraftnät, is planning a new HVDC Interconnector between Finland and Sweden. Fenno-Skan 3 is expected to be commissioned in the late 2030s to replace the aging Fenno-Skan 1. The expected capacity of Fenno-Skan 3 is 800 MW and since Fenno-Skan 1 is 400 MW, the cross-border capacity between the countries is expected to increase by 400 MW in both directions. 

The background for the project is the electricity market’s need for additional capacity between Sweden and Finland. Cross-border capacity between the countries is often inadequate, which prevents the electricity market from functioning efficiently and leads to price divergence. Higher cross-border capacity helps mitigate the risk of extreme price peaks in Finland and Sweden. Furthermore, Fenno-Skan 3 will improve security of supply and enable the integration of renewable energy sources (RES) in the Nordic and Baltic Sea regions. 

Fingrid and Svenska kraftnät have launched a grid study to analyze the benefits of the transmission line and confirm the connection points. The study is expected to be completed by the end of 2026. 

Status as Project of Common Interest 

The project has been granted Project of Common Interest (PCI) status on the 2nd PCI/PMI list. This status is awarded to projects deemed essential for the integration of European energy markets and for achieving the EU’s energy policy objectives. The Fenno-Skan 3 interconnector between Finland and Sweden supports all the main objectives of EU energy policy: affordable, sustainable, and secure energy.