By March 2026, Ocean Winds, via the BC-Wind project website, announced that construction of the offshore electrical substation had started, inaugurating the production phase of the BC-Wind offshore substation at CRIST Offshore’s yard, marking the commencement of fabrication of the platform for the project’s export transmission system.
Hellenic Cables was awarded a contract by DEME to design, engineer, manufacture, test, and supply approximately 70 km of 66 kV inter-array submarine cables and associated accessories for the BC-Wind offshore wind farm. The cables will be produced at Hellenic Cables’ Corinth factory in Greece, with production expected to be completed by the end of 2027.
Ocean Winds reports that in 2025 it concluded a contract for the construction of the BC-Wind offshore substation. This agreement covers delivery of the single offshore station that will collect and transform power from the turbines before export to shore.
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BC‑Wind is Ocean Winds’ first offshore wind project in the Polish Baltic Sea, developed by the 50/50 JV between EDP Renewables and ENGIE. Sited about 23 km north of the municipalities of Krokowa and Choczewo in the Pomeranian Province, the project occupies ~90.94 km² and is being delivered as a b...
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BC-Wind Offshore Wind Farm, BC Wind, BC-Wind (Phase I PSzW)
On 11 December 2025, Ocean Winds awarded DEME a contract covering engineering through to installation of the BC-Wind export cable, with the export cable contract to be executed by DEME in consortium with Hellenic Cables, which had signed an EPCI export cable agreement with Ocean Winds for the project, thereby confirming the main export cable EPCI suppliers for the BC-Wind grid connection.
Energy and marine consultancy ABL was appointed by Ocean Winds to provide marine warranty survey (MWS) services for the construction of the BC-Wind offshore wind farm. Under the December 2025 contract, ABL Germany will lead vessel suitability surveys, technical review of project documentation, and on-site surveillance of onshore and offshore marine operations, supporting transportation and installation of turbines, monopile foundations, transition pieces, inter-array and export cables, and the offshore substation during 2026–2028.
At the end of 2025, Ocean Winds reached financial close for the 390 MW BC-Wind project, which includes the developer-owned export cable system linking the offshore substation in the Polish Baltic Sea to the onshore grid at Choczewo. This financing milestone moved the project into the construction phase and underpins the contracted installation of monopile foundations, inter-array cables, and the export cable by DEME in 2027–2028.
Ocean Winds reported at financial close that all required environmental and regulatory procedures had been completed, including environmental decisions for offshore and onshore components and permits for construction of onshore infrastructure and grid connection to the National Power System. This implies the remaining construction permits for the BC-Wind export connection infrastructure were awarded by this date.
As part of the BC-Wind financial close concluded on 1 December 2025, development bank support was secured with the European Investment Bank providing nearly one-third of the approximately €2 billion financing package, alongside Spain’s Instituto de Crédito Oficial and commercial lenders, giving long-term public bank backing to the project.
Ocean Winds appointed Polish company P&Q to design and construct the onshore substation and export cable route for the 390 MW BC-Wind offshore wind farm, with onshore works scheduled to start in 2026. The onshore substation will connect BC-Wind to the 400 kV Choczewo substation and forms part of the project’s grid connection infrastructure.
Tele-Fonika Kable (TFK), based in Bydgoszcz, was selected to design and install the export cables delivering electricity from BC-Wind’s landfall to the onshore substation. The ENGIE and Ocean Winds communications specify that power from the offshore wind farm will flow via cables designed and installed by Tele-Fonika, as part of onshore works starting in 2026.
Project finance of around €2 billion was secured for BC-Wind from a consortium of lenders, including a €600 million loan from the European Investment Bank, with Ocean Winds announcing financial close on 1 December 2025. This completes the process of arranging external project financing with financial institutions acting as lenders.
By August 2025, a new seabed campaign was underway for BC-Wind, with Sulmara using the vessel Mainport Edge to perform hydrographic and geophysical surveys up to 40 metres below the seabed to identify boulders and other obstacles ahead of monopile foundation installation.
On 28 August 2025, Ocean Winds signed an agreement appointing Tele-Fonika Kable as the supplier of the BC-Wind onshore export cable system in Poland, covering the design, production and delivery of an approximately 8 km onshore export cable section connecting the landfall point in Choczewo municipality with the onshore substation in the same area.
Ocean Winds entered into conditional contracts with Siemens Gamesa for the supply of 26 SG 14‑236 offshore wind turbines and a service and maintenance agreement for the BC-Wind project in the Polish Baltic Sea. Each turbine has a nominal capacity of 14 MW with a Power Boost feature up to 15 MW, with installation and commissioning planned in 2028 and first power expected the same year.
Ocean Winds selected Cadeler to provide transportation and installation services for the 26 Siemens Gamesa SG 14‑236 wind turbines at the BC-Wind offshore wind farm. Cadeler will use its O‑class vessels to handle turbine logistics from the marshalling harbour at Terminal T5 in the Port of Gdańsk, supporting the 2028 turbine installation and commissioning campaign.
On 29 July 2025, Ocean Winds signed a conditional agreement with Siemens Gamesa for the BC-Wind offshore wind farm that includes not only the supply of 26 SG 14‑236 turbines but also a long-term service maintenance agreement to ensure reliability and optimal performance over the project’s operational life. The contract, which is subject to a Notice to Proceed from Ocean Winds, secures Siemens Gamesa as the turbine supplier and O&M service provider for the 390 MW project in the Polish Baltic Sea.
On 1 July 2025, the Regional Director for Environmental Protection in Gdańsk issued decision RDOŚ-Gd-WOO.420.89.2024.AM.7, amending the 2022 decision on environmental conditions for the BC-Wind Offshore Wind Farm by clarifying and narrowing key project parameters, specifying foundation technologies, updating mitigation and monitoring requirements, and revising conditions for construction, operation, and decommissioning.
On 17 April 2025, Ocean Winds signed a contract with Polish contractor P&Q for the design, construction, installation and commissioning of the BC-Wind onshore substation in the municipality of Choczewo, Pomorskie Voivodeship, appointing P&Q as the onshore substation contractor for the project’s grid connection infrastructure.
In March 2025, Ocean Winds signed a construction contract with CRIST for the BC-Wind offshore substation platform (OSP), securing the main supplier for this key element of the project’s transmission infrastructure and marking a publicly celebrated milestone in cooperation with the Polish shipbuilding sector.
On 5 March 2025, the Director of the Maritime Office in Gdynia issued decision INZ.9202.10.2025.AD, approving the terms and conditions for implementing the BC-Wind project as regards the amendments requested by the investor, and providing comments on how those amendments should be applied.
After nearly twelve months of work, Ocean Winds completed an offshore geophysical survey campaign in 2024 for BC-Wind, covering both the wind farm area and the export cable corridor in the Polish Baltic Sea.
In 2024, Ocean Winds concluded a comprehensive offshore geotechnical survey campaign for the BC-Wind project, completing investigations in both the wind farm area and the export cable corridor to characterise subsurface conditions for foundations and cables.
On 23 December 2024, C-Wind Polska (Ocean Winds’ project company) submitted an application, later supplemented in late December 2024 and January 2025, to the Regional Director for Environmental Protection in Gdańsk to amend the existing 16 September 2022 decision on environmental conditions for the BC-Wind Offshore Wind Farm, updating key technical parameters and environmental conditions.
By 3 September 2024, the Regional Director for Environmental Protection in Gdańsk had issued a decision on environmental conditions for BC-Wind’s transmission infrastructure, covering approximately 33 km of subsea cable and 8 km onshore, including HDD landfall works and connection to the 400 kV Choczewo substation.
In July 2024, the Regional Directorate for Environmental Protection (RDEP) in Gdańsk issued an Environmental Decision (ED) for the BC-Wind connection infrastructure, approving the EIA and setting environmental conditions for construction and operation of the export cable system and related onshore infrastructure.
In 2024, Ocean Winds concluded a nearly 12‑month geophysical and geotechnical survey campaign for the BC-Wind project, covering both the offshore wind farm area and the export cable corridor in Poland’s Baltic Sea Exclusive Economic Zone, thereby completing the offshore geophysical surveys relevant to the export cable route.
In 2023, Ocean Winds awarded a contract for the development of design documentation together with construction permit work for the offshore export cables of the BC-Wind project, progressing the detailed engineering and permitting of the grid connection infrastructure between the offshore wind farm and shore.
For 2023, Ocean Winds planned to begin detailed geotechnical investigations at specific BC-Wind turbine and offshore substation locations and along the offshore and nearshore export cable route, building on earlier preliminary seabed studies to refine foundation and cable design.
In August 2023, an Environmental Impact Assessment (EIA) report for the BC-Wind connection infrastructure, covering the export cable route and associated onshore works, was prepared as required by the competent authority because the connection infrastructure was classified as a project potentially having a significant impact on the environment.
Ocean Winds signed a contract with Australian company Sea Global Pty Ltd and Polish subcontractor PGNiG GAZOPROJEKT S.A. to prepare design documentation and obtain the construction permit for BC-Wind’s offshore export cables. The scope covers optimisation and design of the 2 × 220 kV export cable route from the offshore substation to shore, including shore crossings via HDD, cable protection, electrical and thermal analyses, and tender support.
On 16 September 2022, the Regional Director for Environmental Protection in Gdańsk issued a decision on environmental conditions for the BC-Wind Offshore Wind Farm, approving the project’s Environmental Impact Assessment and setting environmental requirements for its construction, operation, and decommissioning.
In 2021, Ocean Winds received a permit to lay and maintain submarine cables for BC-Wind’s connection infrastructure (PUUK), authorising installation and operation of the offshore export cable system linking the wind farm to shore.
In 2021, Ocean Winds submitted the Environmental Impact Assessment report and the application for a decision on environmental conditions for the BC-Wind offshore wind farm to the competent environmental authority, initiating the formal EIA approval process for the project.
Ocean Winds secured a Contract for Difference (CfD) for the BC-Wind (B&C-Wind) offshore wind farm, with the Polish Energy Regulatory Office awarding support for 369.5 MW at a strike price of 319.60 PLN/MWh (about €71/MWh), providing 25-year revenue stability for the project located around 23 km offshore in Poland’s Baltic Sea EEZ.
Ocean Winds signed a grid connection agreement for the BC-Wind offshore wind farm with the Polish transmission system operator in March 2021, following the prior granting of grid connection conditions. This agreement secures BC-Wind’s connection to the national grid at the 400 kV Choczewo substation, enabling up to 500 MW of offshore wind capacity to export power into Poland’s electricity system.
Ocean Winds completed the Environmental Impact Assessment (EIA) survey campaign for the BC-Wind project, covering the offshore wind farm area and associated infrastructure such as the export cable route in Poland’s Baltic Sea Exclusive Economic Zone, prior to the project receiving the right to a Contract for Difference (CfD) in June 2021.
EDP Renewables and ENGIE established Ocean Winds as a 50/50 offshore wind joint venture, which became the exclusive owner and developer of the BC-Wind offshore wind farm in Poland. The JV structure defines BC-Wind’s project ownership, with Ocean Winds holding sole development rights over the two adjacent sites in the Polish Baltic Sea Exclusive Economic Zone.
Preliminary geological surveys of the seabed at the BC-Wind offshore wind farm area were completed in 2020, providing initial geophysical and geological information on seabed conditions to inform turbine and cable design.
In 2019, ENGIE and EDP Renewables established Ocean Winds as a 50/50 joint venture to develop and own offshore wind farms, including the BC-Wind offshore wind project in Poland with its associated transmission connection infrastructure to the Choczewo 400 kV substation. This JV structure formalised shared ownership of Ocean Winds’ offshore portfolio, under which BC-Wind and its export cable system are being developed as the company’s first Polish project.
In 2019, Ocean Winds launched a wind measurement campaign at the BC-Wind offshore wind farm site in the Polish Baltic Sea, carrying out a two-year resource assessment between 2019 and 2021 to collect wind data needed for energy yield calculations and project design.
In 2019, Ocean Winds commenced environmental studies for the BC-Wind project, initiating baseline surveys of marine and coastal conditions, including seabed features, birds, marine mammals, and other environmental receptors to support the project’s environmental impact assessment.
In 2013, Ocean Winds secured a second location decision, also referred to as a permit to erect artificial islands, for the BC-Wind project’s C area, completing the permitting of the two adjacent sites that make up the BC-Wind offshore wind farm.
Ocean Winds obtained a location decision, described as a permit to erect artificial islands, for the BC-Wind project’s B area in 2012, establishing formal site rights for one of the two adjacent offshore wind farm sites in the Polish Baltic Sea.
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