Kontiskan (also Konti-Skan) is the name of two high-voltage direct-current transmission lines between Denmark and Sweden. The 1965-built Kontiskan 1 can transmit a up to 250 megawatts of power with an operating voltage of 250kV, the 1988-built Kontiskan 2 can transmit 300 megawatts with a voltage of 285kV. While Kontiskan 1 uses mercury vapor rectifiers as static inverter valves in the static inverter plants, Kontiskan 2 uses - like all modern HVDC plants - thyristors.

On the Danish side the static inverter plants of Kontiskan 1 and 2 are close to Vester Hassing near Aalborg. From Vester Hassing a 34 kilometers long, two-pole overhead line with the high voltage poles of Konti-Skan 1 and Konti-Skan 2 to the cable beginning at the Danish coast near Staesnas, while two 27 kilometers long underground cables transfer the current of the other poles of Konti-Skan 1 and 2 to the grounding electrode at Soera . In Stensnaes begins the 23 kilometer long submarine cable to the Danish island of Laeso. This cable consists of 3 parallel cables, each of two partial conductors with a copper cross section of 310 square millimeters. One of these cables is used of the Kontiskan 1 and one of the Kontiskan 2. Of the third cables, one conductor is used for Kontiskan 1 and the other for Kontiskan 2. The island Laeso is crossed by the Konti-Skan on a 17 kilometers long two-pole overhead line. Between Laeso and Sweden a monopolar copper cable was laid for Kontiskan 1 and 2 with a cross section of 1200 square millimetres.

From the Swedish coast a 38 kilometre long overhead power line runs to the converter station of Konti-Skan 1 near Stenkullen . On the first 9 kilometres of this line the pylons also carry the high-voltage conductor of Kontiskan 2 and the conductor to the common grounding of Kontiskan 1 and 2 near Risø on the Baltic Sea. In opposite to Kontiskan 1 the static inverter station of Kontiskan 2 is situated South of Gothemborg in near Lindome , and the route of the Kontiskan 1 line. The last 30 kilometers of Konti-Skan 1 are installed on guyed aluminum framework pylons with an unusually low weight of only 800 kilograms.

• http://www.abb.com/global/abbzh/abbzh251.nsf!OpenDatabase&db=/global/gad/gad02181.nsf&v=17EA&e=us&m=100A&c=C1256D71001E0037C1256A140042E2D3
• http://www.transmission.bpa.gov/cigresc14/Compendium/KONTI.htm
• http://www.transmission.bpa.gov/cigresc14/Compendium/Konti%20Pictures.pdf