Undersea Cable Fault Plunges Bornholm into Darkness

The Danish island of Bornholm lost power due to a fault in an undersea cable connecting it to Sweden. Local supplier Trefor El-Net Ost reported the outage at 10:16 am. Emergency services initiated a backup power plant in Ronne, but full restoration could take hours.


Devdiscourse News Desk | Copenhagen | Updated: 21-01-2026 16:13 IST | Created: 21-01-2026 16:13 IST
Undersea Cable Fault Plunges Bornholm into Darkness
  • Country:
  • Denmark

A significant power outage due to an undersea cable issue has left the Danish island of Bornholm without electricity, according to local supplier Trefor El-Net Ost.

The fault occurred in the cable linking Bornholm to Sweden, causing the island's power supply to cease at 10:16 am, as reported by the public broadcaster DR. The exact reason for the cable failure remains unknown.

Emergency services responded by activating a power plant in Ronne, a move expected to gradually restore electricity, although full power recovery might take several hours, as indicated by TV2 television.

(With inputs from agencies.)

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