Cross-Skagerak is the name of an HVDC transmission facility between Tjele (Denmark) and Kristiansand (Norway). Cross-Skagerrak went in service in 1977 as a bipolar HVDC scheme. This facility was built with thyristor valves. In its initial configuration it had a capacity of 1000 megawatts across a distance of 250 kilometres. The 230 kilometre line of Cross-Skagerak consists of a 100 kilometre overhead line and a 130 kilometre underwater cable. When installed this underwater cable was the world's… (More on Cross-skagerak)