Donsö Island Cable
Island LinkOperationalSE24 kV8.5 km2019
Also known as:Donsö sjökabel, Billdal–Donsö sjökabel
Status:Operational
Project Company:
Ellevio AB
Type:island link
Expected Life:50 years
Website:www.ellevio.se
Domestic HVAC subsea distribution cable that connects the Swedish mainland near Billdal to the island of Donsö in the southern Gothenburg archipelago. The work formed part of a broader programme to modernise and weather‑proof the local high‑voltage network serving the archipelago and replace an older, unreliable link. The route described...
Supply Chain (3)
Project Timeline (4)
1 Sept 2019Commercial Operations Full PowerStale
Ellevio’s reinforcement of the electricity supply to Donsö reached full operational capability when the second of two new 8.5 km Nexans subsea power cables from the mainland was commissioned after the summer of 2019, following the first cable’s commissioning in March and its connection to the existing network on the island.
1 Feb 2019Cable Installation Start
In February 2019, installation of the Donsö Island subsea power cable effectively started when two 8.5‑kilometre cables (17 kilometres in total) were pulled out from the Billdal switchyard towards Donsö in Gothenburg’s southern archipelago, laying new subsea cables on the seabed to replace the old, failure‑prone connection and improve electricity reliability for the islands.
1 Feb 2019Cable Installation Complete
In February 2019, two 8.5 km long Nexans AXCLTV 24 kV subsea power cables were laid in parallel from a switchgear near the shore at Billdal, with the first 250 metres installed in pipes through a horizontally drilled hole under the seabed, and then pulled out across the seabed to Donsö in Gothenburg’s southern archipelago, completing the subsea cable installation for the new electricity supply link to the island. This work forms part of Ellevio’s programme to reinforce the reliability of the electricity network to the southern Gothenburg archipelago.
Date TBDCable Supplier Selected
Nexans Sweden was selected to supply two 8.5‑kilometre AXCLTV 24 kV subsea power cables for Ellevio’s project connecting Billdal on the mainland to Donsö in Gothenburg’s southern archipelago, providing a more reliable electricity supply to the islands as part of a larger programme to lay 41 kilometres of subsea cable in the area.