Progress in Offshore Infrastructure Fabrication for the Bałtyk 2 & 3 Wind Farms 

Key milestones have been reached in the production of components for the Bałtyk 2 and Bałtyk 3 offshore wind farms, developed jointly by Equinor and the Polenergia Group. At the facilities of the projects’ supplier – Smulders – the first transition pieces (TPs) have been placed in a vertical position, the jacket foundation for one of the offshore substations has been completed, and the topside structure has been prepared for further outfitting. The Polish branch – Smulders Projects Poland – is supplying secondary steel, thereby increasing local content in project delivery. Offshore installation of the components will begin in spring 2026. 

The completion of the upending operation of the first transition pieces marks a key stage in the fabrication process, enabling the verification of geometry, precision, and quality. In total, 100 TP sets will be manufactured. Once equipped with secondary steel, they will be transported to the installation port to await further transport and offshore assembly. The secondary steel components are being produced and delivered by Smulders’ Polish facilities in Żary, Niemodlin and Łęknica, significantly boosting the Polish contribution to project implementation. 

Źródło/Source: Smulders

The initial fabrication phase of one of the two offshore substation topsides has also been completed, and the unit is now ready for further outfitting. The topside weighs over 3,500 tons. In parallel, production and assembly of its jacket foundation have been finalized. The jacket itself weighs nearly 3,500 tons and measures more than 40 meters in length and width and over 50 meters in height. 

Once both elements – the topside and the jacket foundation – are joined, the structure will reach nearly 100 meters in height, with sides more than 40 meters wide. The total weight will exceed 7,000 tons, equivalent to approximately 280 fully loaded trucks which, lined up, would stretch for over four kilometers. 

The production of these components is being carried out simultaneously across contractors’ facilities in Poland, Belgium, the Netherlands and the United Kingdom, with a significant portion of the topside components manufactured in Poland. 

Źródło/Source: Smulders

Smulders is responsible for the design and construction of two complete offshore substations – both topsides and supporting jackets. In consortium with Sif, the company is also delivering all transition pieces for the Bałtyk 2 and Bałtyk 3 offshore wind farms.

The Bałtyk 2 and Bałtyk 3 offshore wind farms, jointly developed by Equinor and Polenergia, will have a total installed capacity of 1,440 MW. This will enable the supply of clean, renewable energy to more than 2 million Polish households, significantly supporting the country’s energy transition. The first power is expected to be delivered in 2027, with commercial operations commencing in 2028.