Delivery of four power transformers and associated high-voltage equipment has been completed at the onshore transformer station for the Baltica 2 offshore wind farm in Poland. The equipment is required to transfer electricity from the project to the national transmission grid.
After arrival at the Baltic Container Terminal in Gdynia, the transformers were transported by sea to the port of Władysławowo and then moved overnight by road to the construction site in Osieki Lęborskie. Each transformer weighs around 360 tonnes. In addition to the 450 MVA transformers, shunt reactors supplied by GE Vernova have also been delivered to the site.
The onshore transformer station is being built by a consortium of GE Vernova and Polimex Mostostal. Installation work is ongoing in the 275 kV and 400 kV gas-insulated switchgear buildings, including switchgear and auxiliary systems. Grid connection gantries linking the station to the transmission system operated by PSE have already been completed. Testing and commissioning of the station are planned for 2026 and 2027.
The substation is located on a site of nearly 13 hectares in Osieki Lęborskie, within the Choczewo commune in Pomerania. Electricity generated by the offshore wind farm will be transmitted to shore at 275 kV and carried via a 6 km cable route to the onshore station, where the voltage will be stepped up to 400 kV before export to the national grid through the nearby Choczewo transmission substation. Horizontal directional drilling works near the coastline are underway to connect the offshore and onshore cable sections.
Baltica 2 has a planned capacity of up to 1.5 GW and is being developed as a joint venture between PGE and Ørsted.
