NordBalt energy interconnection resumes operation after failure

The NordBalt energy interconnection between Sweden and Lithuania has resumed operations following a 74-minute transmission failure. The incident occurred on Friday afternoon during switching operations at a 400 kV switchgear station in Nybro, Sweden.

Operators reported that the fault was identified and resolved quickly, with the connection restarting at 14:44. The Swedish operator is currently investigating the cause of the failure but stated there is no evidence of external interference. The underwater section of the cable remained undamaged.

To prevent consumer disruptions, the Lithuanian operator, Litgrid, activated power reserves during the outage. Both Litgrid and the Swedish operator, Svenska kraftnät, confirmed that electricity supplies to end users remained stable. The NordBalt link, which connects Nybro to Klaipeda, has a capacity of 700 MW and includes approximately 400 km of subsea cable.