Baltic wind farms Bałtyk 2 and 3 gain momentum across offshore and onshore works

The Bałtyk 2 and Bałtyk 3 offshore wind projects, jointly developed by Equinor and Polenergia, are advancing rapidly with parallel progress across offshore installation activities and onshore infrastructure development. The combined 1.44 GW scheme is moving steadily toward the execution phase, marking a key milestone in Poland’s offshore wind build-out.

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30 april 2026   |   06:15   |   Source: Gazeta Morska   |   Prepared by: Kamil Kusier   |   Print

fot. Equinor / Polenergia

First offshore installation campaign underway

The first phase of offshore construction has commenced, with specialist vessels deployed to carry out subsea rock installation works. The rock placement campaign plays a critical role in safeguarding seabed infrastructure, providing mechanical protection for export and inter-array cables as well as turbine foundations against hydrodynamic loads.

More than one million tonnes of rock are expected to be installed across the offshore site, forming a protective layer essential for long-term asset integrity.

At the same time, manufacturing activity is progressing across multiple European and Polish fabrication yards. Key components under production include monopiles, transition pieces, offshore cables, and topside elements for offshore substations. Tower manufacturing for Bałtyk 2 has also begun, marking a transition from procurement to serial production of primary wind turbine structures.

Upcoming offshore activities will include installation of monopile foundations and transition pieces, followed by export and inter-array cable laying campaigns.

Onshore substations and grid connection advancing

Significant progress is also being made onshore at the substation site in Pęplin, near Ustka. The onshore substations (ONS) for both projects are being equipped with two 450 mva transformers, each weighing 352 tonnes, alongside ongoing electrical installation and finishing works.

Grid connection infrastructure is nearing completion, with approximately 80% progress on the 220 kv transmission line and around 90% on the 400 kv system. Horizontal directional drilling (hdd) works are currently being executed at the landfall section to enable cable transition from offshore to onshore without surface disruption.

Operations and maintenance base in Łeba

Construction of the operations and maintenance (o&m) base in Łeba is approaching final stages. The facility will serve as the central hub for offshore operations, integrating warehousing, administrative offices, and a remote control centre for wind farm monitoring and management. A dedicated quay for service vessels is also being developed.

Recruitment of operational personnel is ongoing, with the facility expected to become a key long-term asset supporting offshore operations in the Baltic Sea.

Strategic offshore development for Poland

Once fully operational, Bałtyk 2 and Bałtyk 3 will deliver a combined capacity of 1.44 gw, supplying renewable electricity to more than two million households in Poland.

First power delivery to the grid is expected in 2027, with full commercial operation targeted for 2028.

The projects represent one of the most advanced offshore wind developments in the Polish sector of the Baltic Sea, reinforcing the region’s emergence as a major hub for offshore renewable energy in Central and Eastern Europe.

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morskie farmy wiatrowe bałtyk 2 i 3 offshore wind polska energetyka odnawialna equinor polenergia

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