Fenno-Skan 2
OperationalCross Border
FISE
800 MW500 kV270 km2011Basic information
7 fieldsAlso Known As
Fenno‑Skan II · FS2 · Fenno Skan 2 · Rauma–Finnböle (FS2) · Rauma‑Finnböle HVDC · Fenno-Skan 2 (FI‑SE)
Status
operational
Capacity
800 MW
Project Company
Type
cross border
Website
Supply Chain (3)
Project Timeline (17)
19 Apr 2023Cable Repair
A Reuters report dated 19 April 2023 states that the Fenno-Skan 2 subsea cable between Finland and Sweden stopped working that afternoon due to excavation work at the Rauma power station, and quotes Fingrid saying they were looking into repair scheduling and that a repair to the subsea cable was expected by late Thursday. This establishes the timing of the excavation-related fault at Rauma and the associated repair operation on the damaged subsea cable.
~Oct 2011Cable Installation Complete
In 2011, the Fenno-Skan 2 high-voltage direct current interconnector’s approximately 200-kilometre submarine cable was fully laid on the seabed of the Gulf of Bothnia between Finland and Sweden, using the cable-laying vessel SC Skagerrak and cable manufactured by Nexans. Completion of the subsea cable installation, together with the subsequent completion of the converter stations, enabled the 800 MW, 500 kV link to be made fully available to the Nordic electricity market later that year.
Feb 2012Major Outage
In February 2012, the Fenno‑Skan 2 HVDC interconnector between Finland and Sweden suffered a major outage when a German vessel dropped its anchor onto the subsea cable, damaging it and interrupting power transmission. The outage, on the 800 MW, 500 kV link operated by Fingrid and Svenska kraftnät, led to higher electricity prices for Finnish consumers and industry over the following two months, with the additional cost estimated at about €80 million.
17 Jan 2012System Testing
ABB completed commissioning of the Fenno-Skan 2 high-voltage direct current power link between Finland and Sweden, finalising system testing of the 800 MW cable-based transmission connection and its converter stations at Rauma in Finland and Finnböle in Sweden, so the link was ready for operational service.
2011Cable Installation Start
Fingrid's 2/2011 corporate magazine article "Finish line looms in Fenno-Skan 2 submarine cable project" reports that the Fenno-Skan 2 subsea cable is already being laid on the seabed in 2011 and that the transmission connection will be taken into commercial use at the end of 2011. This confirms that offshore cable installation work started in 2011, broadly in line with the planned spring 2011 start, even though an exact start day is not specified.
16 Dec 2011Onss Commissioned
On 16 December 2011, Fingrid and Svenska Kraftnät completed and accepted construction of the Fenno-Skan 2 HVDC converter stations, making the 800 MW, 500 kV link between Rauma in Finland and Finnböle in Sweden fully available to the electricity market after a trial operation period starting on 15 November 2011. The commissioning of these onshore converter facilities, together with a 200 km submarine cable, a 70 km 500 kV DC overhead line and a new 400 kV switchyard, marked the operational readiness of the interconnector and increased transmission capacity between Finland and Sweden by about 40%.
16 Dec 2011Commercial Operations Full Power
Fenno-Skan 2, the 800 MW / 500 kV HVDC interconnector between Rauma in Finland and Finnböle in Sweden owned by Fingrid and Svenska kraftnät, entered full commercial operation on 16 December 2011, adding around 40% to the transmission capacity between the two countries and strengthening the Nordic power grid.
1 Mar 2011Substation Supplier Selected
By March 2011, the AC substation for the Fenno‑Skan 2 reinforcement had been procured from Siemens, complementing previously purchased components including the Nexans submarine cable, ABB converter stations and the HVDC overhead line from Vattenfall Service Nordic.
1 Mar 2011Other Permit Awarded
Licence: Cross‑border consents and water permits for HVDC interconnector
By 1 March 2011, Fenno‑Skan 2 had secured key project permits, with cross‑border consents and water permits granted in both Finland and Sweden, enabling construction of the new HVDC interconnector including its submarine cable and associated infrastructure.
29 Nov 2010Capital Support Awarded
The European Investment Bank signed a loan agreement of EUR 150 million with Fingrid Oyj to finance the Fenno-Skan 2 HVDC cable between Finland and Sweden, a TEN-E priority project with an approximate total cost of EUR 300 million that will increase transmission capacity by about 40% and strengthen Baltic Sea region market integration.