The Baltic Power offshore wind farm, Poland’s first offshore wind farm, jointly developed by the Polish ORLEN Group and Canada’s Northland Power, has successfully completed the installation of its first two offshore substations. Both structures, located about 20 km offshore between Łeba and Choczewo, will collect the energy produced by 76 15 MW turbines and transmit it to the mainland via submarine and and land-based
The complexity of the installation
The two substations, named OSS East and OSS West, were manufactured in Poland, and shipped to Denmark for final outfitting and subsequent installation at sea using specializedfloating cranes, supported by tugboats and other vessels. Each substation is designed to operate remotely and safely, without a permanent crew and, fully equipped, weighs some 2,500 tons.
The consortium in charge of its construction consisted of CS Wind Offshore, Semco Maritime and several Polish companies. The complexity of the operation, which included simultaneous installation, maintenance and pre-commissioning work, was coordinated from the project base in Łeba, operational from April 2025.
Local impact of the project
Once completed in 2026, the Baltic Power offshore wind farm will provide up to 4 TWh of wind energy per year. wind power to the Polish electricity system, equivalent to 3 % of the country’s current demand. It covers an area of more than 130 square kilometers, extending between Łeba and Choczewo, in an area comparable to the size of the city of Gdynia.
The connection to land will be made by 4 submarine export cables that will transport the energy from the marine substations to the land substation under construction in Choczewo, already in its final phase.
Next steps at the Baltic Power offshore wind farm
With the marine substations already installed, the next critical phase will be the laying of submarine cables. More than 20 vessels are already operating in the project area in an intensive campaign to connect all elements of the system.
The Baltic Power wind farm represents not only Poland’s first step into offshore wind power, but also an industrial and strategic commitment to diversify its energy matrix and take advantage of the potential of the Baltic Sea as a clean and continuous source of energy.
Source: Baltic Power
