Positive
Project advancing - milestone achieved
Medium Impact
Significant progress or notable issue
The HVDC Gotland 1 submarine cables between mainland Sweden and Gotland were replaced in 1986 as part of the Gotland 3 expansion, completing installation of the new higher-capacity HVDC cable system associated with the Gotland 3 monopolar link. The replacement was driven by load growth rather than cable aging, with tests on the removed 1954-vintage cable showing it remained in near original condition after 32 years of service, including 16 years at an uprated 150 kV.