Brenntangen - Solberg Replacement Cable
CrossingOperationalNO420 kV2.7 km
Also known as:Solberg–Brenntangen 420 kV sjøkabel, Brenntangen–Solberg 420 kV sjøkabelforbindelse, Indre Oslofjord Solberg–Brenntangen kabel, Solberg–Brenntangen-linjen (sjøkabel), Indre Oslofjord reinvestering Solberg–Brenntangen
Status:Operational
Project Company:Statnett SF
Type:crossing
Website:www.statnett.no
Brenntangen–Solberg Replacement Cable is a domestic 420 kV AC (HVAC) subsea reinvestment in the inner Oslofjord that renews Statnett’s critical fjord crossing between Brenntangen (Vestby) and Solberg (Hurum) in southeastern Norway. The project is part of the broader Indre Oslofjord reinvestment programme and replaces older oil-filled cable installations with modern...
Supply Chain (0)
Project Timeline (11)
2018Cable Supplier SelectedStale
Nexans announced that it had been contracted by Statnett to design, produce and install two new 420 kV subsea cable systems in the inner Oslofjord, one of which connects Solberg in Hurum with Brenntangen in Vestby. Nexans stated that the Indre Oslofjord project, including installation of the Solberg–Brenntangen replacement cables, was planned to be completed in 2018.
Sept 2017Onss Commissioned
In September 2017, Statnett commissioned the new power cables between Solberg (Hurum) and Brenntangen (Vestby) in the Inner Oslo Fjord, completing one of the two planned cable installations for the project.
1 Jun 2017Cable Installation Complete
Cable installation for the new 420 kV subsea cables between Solberg (Hurum) and Brenntangen in Indre Oslofjord was completed in mid-June 2017. Nexans Norway finished laying the first seven cables for Statnett and then proceeded with seabed protection works using an underwater excavator to bury the cables.
15 Jul 2015Cable Supplier Selected
Statnett awarded Nexans a contract worth around EUR 50 million to design, produce and install two new 420 kV subsea PEX cable systems across the inner Oslofjord, including the Solberg–Brenntangen connection, each comprising seven individual cables manufactured at Nexans’ Halden plant and scheduled for completion in 2018.
Sept 2014Fid Financial Close
Statnett reached the investment decision for the Indre Oslofjord reinforcement project, including the replacement 420 kV sea cable link between Solberg and Brenntangen, in September 2014. The decision covered reinvestment in two new 420 kV subsea cable systems on the Filtvet–Brenntangen and Solberg–Brenntangen routes, with removal of the existing assets, at an expected cost of 1,109 million NOK, enabling construction works to start in 2015.
kr1,109M
11 Apr 2014Planning Consent Awarded
Authority: Norges vassdrags- og energidirektorat (NVE) · Licence: Licence for new 420 kV subsea cable and associated landfall and muffe stations between Solberg and Brenntangen
On 11 April 2014, the Norwegian Water Resources and Energy Directorate (NVE) granted Statnett a licence for new 420 kV subsea cable connections between Solberg and Brenntangen and between Filtvet and Brenntangen in the inner Oslofjord, including new landfall installations and muffe (transition) stations. The new licence allows replacement of the existing, ageing cables and associated infrastructure, which will be removed once the new facilities are in operation, in order to secure power supply and trading capacity for Eastern Norway.
Q1 2014Other Permit Awarded
Licence: Licence (concession) to construct and operate new 420 kV subsea cable interconnectors Solberg–Brenntangen and Filtvet–Brenntangen in Inner Oslofjord
In the first quarter of 2014, NVE granted Statnett a licence for new subsea cables across the inner Oslofjord, authorising the construction and operation of seven 420 kV subsea cables and two new landing facilities for each of the Solberg–Brenntangen and Filtvet–Brenntangen interconnectors between Hurum and Vestby, to replace older links and strengthen security of electricity supply in Eastern Norway and trading capacity with Sweden.
2012Other Permit Submitted
Licence: Concession application to reinvest in two subsea cable interconnectors in Inner Oslofjord (Solberg–Brenntangen and Filtvet–Brenntangen)
In 2012, Statnett submitted a concession application to the Norwegian Water Resources and Energy Directorate (NVE) to reinvest in two subsea cable interconnectors in the inner Oslofjord, including the Solberg–Brenntangen and Filtvet–Brenntangen 420 kV crossings, to replace ageing cables from 1958 and 1975 and secure power supply to central Eastern Norway.
Date TBDOnshore Construction Start
Statnett’s project manager stated that when onshore construction begins for the Indre Oslofjord reinvestment, there will be significant construction activity at the landfall areas at Filtvet and Solberg due to building new jointing stations and landfall facilities, including traffic from deliveries of concrete and materials, although the bulk of the work will take place at sea. This onshore work relates to the new subsea cable route between Solberg and Brenntangen, which will replace ageing cables to secure power supply to Eastern Norway.
Date TBDPublic Consultation
Licence: Limited hearing on supplementary concession application for revised cable landing route at Filtvet for the Inner Oslofjord subsea cables (including Solberg–Brenntangen)
During the concession process for the Inner Oslofjord subsea cable reinvestment, a hearing was held on Statnett’s applications, including a limited consultation on a supplementary application to adjust the cable landing at the Filtvet muffestation, where neighbours, Hurum municipality, landowners, YX Eiendom Norge AS and local cabin owners submitted comments on route alignment, property impacts and access.