The work to replace the last 400 kilovolt high-voltage cables connecting Denmark and Sweden across the Øresund will begin in early 2026. The project will begin on land between Skibstrupgård High Voltage Station and the Øresund coast, while the replacement of the submarine cables will not be completed until the summer months. Energinet informs in a press release.
The cables are a central part of the electricity supply on Zealand and the connection between Denmark and Sweden. One of the two 400 kilovolt connections was replaced in 2020, and now the second part follows.
The project has received environmental permit on the Danish side after a public hearing, while the Swedish permit is expected in the spring of 2026. Energinet's contractor will start preparatory work on land in January, including undercutting through Hornbæk Plantage and excavation work along Nordre Strandvej.
The existing land cables will be emptied of oil, but left in the ground to avoid felling trees. Before the excavation work begins, Helsingør Museum will conduct archaeological investigations in the area.
In the spring, work will begin on the coast with undercutting from the parking lot down towards the Øresund. The actual laying of the submarine cables will take place in the summer of 2026, where the existing cables will first be removed, after which the new ones will be laid and buried in the seabed.
In the autumn of 2026, preparatory work will be carried out at the Skibstrupgård High-Voltage Station, before the new cable system is scheduled to be put into operation before the end of the year.
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