Baltica 2 with ready sea-land crossing. HDD drills completed

The sea-land-controlled drilling (HDD) campaign for Baltica 2 – joint investment of PGE and Ørsted ended. Thanks to the use of advanced HDD technology, it will be possible to conduct export cables under the shoreline without excavating the beach and dunes.

HDD sea-land drilling – key stage of Baltica infrastructure 2

The sea-land crossing is one of the most demanding sections of the entire cable route – both technically and environmentally. At this point, maritime infrastructure connects to land, and the way in which this stage is carried out is crucial for further implementation of the power delivery system from the farm to land.

The implementation of this section is followed by a complex engineering process involving the preparation of the infrastructure necessary for the subsequent conduct of cables under the shoreline. The HDD campaign included the preparation of four 800 mm cable channels. The pipes were mounted on the construction site, combining 18-metre sections with four lengths of approx. 1240 m each – a total of about 5 km of infrastructure prepared to conduct export cables.

Works related to sea-land drilling, including pipe assembly, began in July 2025 and lasted nine months. The process of prefabricating pipes required 42 components to be carried out on the construction site. The works were carried out in demanding and very variable weather conditions – temperatures from 30°C in the summer to –20°C in winter, also with snowfalls and icy.

The successful installation of the fourth and final sections of HDD cable represents a significant step forward in the implementation of the project and reflects the excellent coordination and involvement of the entire project team, as well as cooperation with our performers. We are particularly proud of the high safety culture that we have managed to develop at the construction site during this technically demanding operation, and of the involvement of all those working there. In April, deep-sea work will be carried out to secure the four ends of cover pipes. This will complete the preparation stage for the installation of the export cable and for the process of connecting sea and land cables. All this is done to allow the cable system to transmit energy generated by the offshore wind farm to the Polish energy network.

Ulrik Lange, Managing Director of the Baltica 2 project in Ørsted

After the drilling and their collection, cable channels were prepared for the next stage of the investment. Until the installation of export cables begins, their tips will remain protected under the seabed. The work was successfully carried out by Romgos-RBS Janicki consortium with the support of other Polish subcontractors.

During this stage, it was important to limit both interference with the beach and dunes, as well as to maintain access to the beach for residents and tourists. The use of HDD technology allowed to reconcile these objectives, as the transition is made in the coastal zone beneath the ground surface, not through open excavations. Throughout the work, access to the beach was maintained by existing and designated routes, and activities were coordinated with local authorities.

HDD sea-land drilling – key stage of Baltica infrastructure 2

Undersea cables with electricity produced by Baltica 2 wind farm will "land" near the seashore in Lubiatów in the municipality of Choczewo. Here they will encounter land cables leading for 7 kilometres to our land power station. Then, via PSE station Chochewo energy from the sea will enter the national network. It is particularly important for us to involve a consortium of Polish companies, who also included subcontractors from Pomerania.

Bartosz Fedurek, Chairman of the Board of PGE Baltica

Baltica 2 with a power of approx. 1.5 GW is a joint investment of PGE and Ørsted. This year, the installation of foundations, the installation of export cables in the sea and the installation of transformer stations at sea will begin. After completion These steps will be the installation of connecting cables between turbine foundations and marine transformer stations. For this year, it is also planned to start testing the terrestrial transformer station.

After the launch in 2027, Baltica 2 will be the largest offshore wind farm in Poland. The investment will contribute significantly to the country's energy transition, providing clean energy for about 2.5 million households.