Equinor and Polenergia Reach Midpoint in Bałtyk Wind Farms Foundation Installation - MarinePoland.com
Equinor and Polenergia Reach Midpoint in Bałtyk Wind Farms Foundation Installation
Date of publication: 01.07.2026

Offshore wind farms that are being built by Equinor and Polenergia have reached the halfway point in the installation of their foundations. More than 50 monopiles and transition pieces have already been installed as part of the Baltic Sea project. Installation of the foundations for the offshore substations is also expected to begin shortly.

Together, the Bałtyk 2 and Bałtyk 3 offshore wind farms will comprise 100 state-of-the-art wind turbines, each with a capacity of 14.4 MW. Installation of their foundations commenced in May, with monopiles driven into the seabed and connected to so-called transition pieces, whose distinctive yellow tops are visible above the water surface. These structures will support the towers of the 260-metre-high wind turbines, which are scheduled to be installed next year.

– Reaching the halfway point in foundation installation is an important and very tangible milestone in the delivery of the Bałtyk 2 and Bałtyk 3 projects. It demonstrates that such a complex engineering and logistics operation, involving the construction of one of Poland's largest offshore wind developments, is progressing efficiently and according to schedule. The installation of each additional foundation brings us closer to the moment when electricity generated by the wind farms, with a combined capacity of up to 1.44 GW, will begin supplying the national power system and strengthening Poland's energy security – commented Adam Purwin, Chief Executive Officer of Polenergia.

– The installation of half of the planned foundations illustrates both the scale and pace of offshore construction activities being carried out for the Bałtyk 2 and Bałtyk 3 projects. This is one of the most demanding phases in the construction of an offshore wind farm, which is why offshore experience, operational safety and close coordination between offshore and onshore teams are of critical importance. Thanks to the commitment of our teams and strong cooperation with our partners, we are consistently advancing the subsequent stages of the investment programme – said Michał Jerzy Kołodziejczyk, Chief Executive Officer of Equinor Polska.

Initially, monopiles and transition pieces were installed on the seabed at the Bałtyk 2 offshore wind farm, located 37 kilometres from the coast. At the same time, seabed works were being carried out at Bałtyk 3, situated 22 kilometres offshore, including the placement of rock scour protection designed to safeguard subsea infrastructure. Foundation installation activities are now also shifting to this site.

In addition, the installation of the support structures, or jackets, for the projects' offshore substations is scheduled to commence later this summer. These structures will support the offshore substations responsible for collecting electricity generated by the turbines, increasing the voltage from 66 kV to 220 kV and transmitting the power ashore.

Foundation installation work for the Bałtyk 2 and Bałtyk 3 wind farms is being carried out by Thialf, one of the world's largest installation vessels, measuring more than 200 metres in length and 88 metres in beam. The vessel is supported by more than a dozen additional ships, including those responsible for delivering components to the offshore construction sites.


Photos: Bałtyk Wind Farms Press Bureau

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