SPIE Wind Connect to connect and test 66 kV inter‑array cables at Baltyk II & III
Key highlights
- SPIE Wind Connect contracted by Seaway7 to perform connection and testing of 66 kV inter-array cables for Baltyk II and III
- Offshore work is scheduled to start in Q2 2026 in Poland's exclusive economic zone in the southwest Baltic Sea
- Each farm is ~720 MW (combined ~1,440 MW), supplying power for over 2 million homes
- Each farm has ten strings of five turbines; end-turbine cables are 400 mm² and 1,000 mm² cables carry full string power to the offshore substation
Contract and scope
SPIE Wind Connect was awarded by Seaway7 to perform connection and testing of 66 kV inter‑array cables linking turbines to offshore substations for the Baltyk II and III projects.
Schedule and location
The main offshore phase is expected to start in Q2 2026 in Poland's exclusive economic zone in the southwest Baltic Sea, off the northern coast.
Project capacity and layout
Each farm is about 720 MW (combined ~1,440 MW), estimated to supply renewable electricity for over 2 million homes; each farm comprises ten strings of five turbines connected to an offshore substation by 66 kV inter‑array cables.
Cabling specifics
End-of-string turbines use 400 mm² cables while 1,000 mm² cables carry the full string power to the offshore substations.
Source: SPIE