Neutral
Informational - no clear directional impact
Low Impact
Minor progress or informational
In 2007, Hitachi Energy (then ABB) carried out a major upgrade of the Skagerrak 1 and 2 HVDC link between Kristiansand in Norway and Tjele in Denmark, replacing and modernizing the control system with its MACH platform. This upgrade of poles 1 and 2 formed part of a broader modernization of the Skagerrak interconnector, enhancing operational reliability and enabling coordinated operation with later links in the scheme.