Pole 1 (Kontiskan 1) was originally built in 1965, using mercury arc valves and was able to transmit up to 250 megawatts (MW) of power with an operating voltage of 250 kV.

The original mercury arc scheme was taken out of operation and disconnected on 15 August 2006, being replaced by new equipment using thyristors with a power rating of 350 MW.

From Vester Hassing a 34 kilometres (21 mi) long overhead line with two conductors runs to the cable terminal at the Danish coast near Stensnæs.

Between Læsø and Sweden each high voltage pole of Konti–Skan uses a monopolar copper cable with a cross section of 1200 square millimetres.

From the Swedish coast a 38 kilometres (24 mi) long overhead power line ran to the original converter station of Konti–Skan 1 near Stenkullen.