Four transformers and essential high-voltage equipment for power transfer to Poland’s national grid have arrived at the onshore substation construction site for the Baltica 2 offshore wind farm. This project, located in the Polish Baltic Sea, is a joint venture between PGE and Ørsted.
The onshore infrastructure is being built by GE Vernova and Polimex Mostostal, following a 2024 contract with the developers.
The power transformers were first delivered to the Baltic Container Terminal in Gdynia, then transported to Władysławowo before being moved overnight to Osieki Lęborskie. Each transformer weighs about 360 tonnes, similar to a loaded Boeing 777 aircraft.
Alongside the 450 MVA transformers, GE Vernova also provided shunt reactors for the site.
The high-voltage substation for Baltica 2 is under construction on a 13-hectare site in Osieki Lęborskie, Pomerania. The 1.5 GW wind farm will use a 6-kilometre cable to deliver electricity from the landfall site to the substation, where the 275 kV current will be converted to 400 kV before connecting to the national grid at the nearby Choczewo TSO substation.
Nearshore cable work is ongoing, using horizontal directional drilling to link the onshore and offshore sections. Export cable production has started as well.
Construction at the Choczewo substation site includes equipping the 275 kV and 400 kV switchgear buildings. Connections to the national grid, managed by Transmission System Operator PSE, are complete, according to Baltica 2 developers.
Testing and commissioning of the substation are planned for 2026 and 2027.
Situated 40 kilometers off the Polish coast near Ustka, Baltica 2 will feature 107 Siemens Gamesa 14 MW wind turbines.
When operational in 2027, the 1.5 GW project will be Poland’s largest offshore wind farm, capable of powering about 2.5 million homes with renewable energy.
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Original Story at www.offshorewind.biz