Jan De Nul Group

Jan De Nul Group, working in a consortium with Hellenic Cables, was contracted by Equinor and Polenergia in October 2023 to transport, install and bury four 220 kV HVAC offshore export cables for the Bałtyk II and Bałtyk III offshore wind farms in the Polish Baltic Sea. The contract scope covers the complete offshore export cable system connecting the two offshore substations to a landfall point approximately three kilometres west of the port of Ustka, with a combined cable length of approximately 256 kilometres across both projects. Jan De Nul is responsible for the marine operations including cable transportation from the Hellenic Cables manufacturing facility in Corinth, Greece, offshore cable laying using specialist cable-lay vessels, cable burial to target depth for protection, and any required post-lay remedial works including rock placement. The export cables will transmit power at 220 kV from the offshore substations to the HDD landfall transition joint bays near Ustka, where they connect to the onshore cable route running approximately 14 km inland to the onshore substations at Pęplino. Offshore cable installation is planned to commence during the 2026 offshore construction campaign, following completion of seabed preparation works (boulder clearance, route clearance and subsea rock installation) carried out by other contractors in 2025-2026.