Skagerrak is the name of a 1,700 MW high-voltage direct current (HVDC) transmission facility between Tjele (Denmark) and Kristiansand (Norway).

[3] The overhead lines in Denmark are set to be renovated in 2016 for increased lifespan.

The cable, manufactured by Alcatel, is laid in a maximum water depth of 530 metres (1,740 ft).

[3] In 1999, the full 1,000 MW capacity was reserved by large power companies.

[10][11] The capacity of Skagerrak 4 is approximately 700 MW with a DC voltage of 500 kV.

[12] It had been in a test phase since 1 October 2014 and became operational at the end of 2014, when strong winds created negative prices despite the new connection.

[14] As for the existing Skagerrak 1-3, the grid connection points are Kristiansand and Tjele.