Baltic Power, a joint venture between Polish energy company ORLEN and Canadian firm Northland Power, has achieved a landmark moment in the country's energy history by supplying offshore wind electricity to the Polish national grid for the first time.

The development, confirmed by grid operator Polskie Sieci Energetyczne, marks the beginning of a commissioning process that will continue until the farm reaches its full generating capacity of approximately 1.2 gigawatts.

Poland's First Offshore Wind Power Reaches the Grid

The event, referred to in industry terms as "First Power," occurred at the Baltic Power offshore wind farm situated approximately 23 kilometres off the coast near Choczewo and Łeba in northern Poland.

Polskie Sieci Energetyczne confirmed receipt of energy at the onshore substation in the municipality of Choczewo, validating the successful integration of the farm's offshore and onshore infrastructure with the national transmission network.

Maciej Stryjecki, CEO of Baltic Power, described the development as the culmination of a long-term effort involving more than 200 people across the project team, shareholders, contractors, suppliers, public administration, and the grid operator.

"For years, we have outlined scenarios for the development of offshore wind energy as a key pillar of Poland's energy transition, today, those declarations and ambitious goals have become a reality," Stryjecki said.

He added that construction remains ongoing, with the project team committed to completing the build phase safely and on schedule in preparation for approximately 30 years of generation from the Baltic Sea.

How First Power Works and What Comes Next

The First Power milestone is not a single switch-flip event but a sequential process in which completed turbines are progressively brought online and tested before being connected to the grid.

Each stage involves extensive testing of electrical equipment, mechanical devices, and the remote-control system governing both the offshore and onshore infrastructure of the farm.

Jens Poulsen, Project Director and Member of the Management Board at Baltic Power, explained that integrating the farm's infrastructure required close cooperation between the project team, contractors, and the grid operator across many months of preparation.

"This represents another milestone for Baltic Power, paving the way for the Polish offshore wind industry and bringing valuable experience for future projects," Poulsen said.

Once all installation and commissioning work is finalised, the farm will consist of 76 Vestas turbines, each rated at 15 megawatts. According to Baltic Power, this is the largest turbine model currently available from European manufacturers, and the Baltic Power farm is among the first two wind farms in the world where turbines of this type are being installed.

Installation Campaign More Than 80 Percent Complete

The offshore installation campaign has reached an advanced stage, with more than 50 of the 76 turbines already installed at the time of the announcement, representing over 80 percent completion. Work is continuing to finalise all connections to the two offshore substations.

All offshore export and internal cables have been laid on the seabed and buried. Both offshore substations have been installed and energised from the onshore end.

The onshore infrastructure, comprising the export cable network, the substation near Choczewo, and the associated power transmission lines, is fully complete. The total length of cable lines across the entire Baltic Power project exceeds 350 kilometres.

Electricity generated by the turbines travels through internal cables to the two offshore substations, where voltage is stepped up to 230 kilovolts to reduce transmission losses.

The power is then carried via export cables to the Choczewo onshore substation, where voltage is further transformed to 400 kilovolts for connection to the nearby station operated by Polskie Sieci Elektroenergetyczne.

Grid Operator Credits National Recovery Plan Funding

Grzegorz Onichimowski, President of PSE, confirmed that all grid investments required to evacuate power from Poland's first offshore wind farms in the Baltic Sea were completed on schedule.

He highlighted the role of local companies from the Pomeranian region in constructing the Choczewo substation and pointed to funding from Poland's National Recovery Plan as a contributor to the infrastructure effort.

"It is also an example of using funds from the National Recovery Plan to develop the infrastructure of the future, which will enable Poland to continue its growth," Onichimowski said.

Łeba Service Base Supports Construction and Long-Term Operations

The Baltic Power service base in Łeba has been operational since spring 2025, currently supporting the active construction process. Once construction is complete, the base will transition into a service and maintenance centre for the wind farm across its planned 30-year operational lifespan. The first key contracts for the operational phase have already been signed, and employee recruitment is underway.

The Baltic Power Offshore Coordination Center operates around the clock from the Łeba base, overseeing maritime traffic in and around the farm. To date, more than 100 vessels and over 5,300 crew members and contractors have been involved in the installation campaign. On any given day, up to 20 vessels operate within the farm's 130 square kilometre area.

The installation campaign is scheduled to be fully completed later in 2026, after which the multi-stage process of approvals, permitting, and final commissioning will continue ahead of the farm entering full commercial operation.

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