Ocean Winds, the 50-50 joint venture between EDP Renewables and ENGIE, has selected P&Q to design and build a critical onshore substation for the 500 MW BC-Wind offshore wind farm in Poland.

Located in the Choczewo commune of the Pomeranian Province, the substation will serve as the main hub for transferring power from the offshore installation—located 23 kilometers into the Baltic Sea Exclusive Economic Zone—into the national transmission grid.

A key feature of the facility will be a high-voltage power transformer, which will step up the voltage from 275 kV to 400 kV. This voltage boost is essential for enabling the efficient and reliable transmission of renewable energy from the sea to shore, minimizing losses and ensuring grid stability.

The contract awarded to P&Q covers the design, construction, installation, and commissioning of the substation. It is a cornerstone of the BC-Wind project’s land-based infrastructure and marks a major milestone in the development of Poland’s offshore wind industry.

Earlier in 2025, Ocean Winds selected CRIST Offshore to deliver the offshore substation (OSS), which will collect and transmit power from the wind turbines to the onshore installation.

Source: oedigital.com