G-Tec has successfully concluded a significant surveying endeavor for Baltic Power, the first offshore wind farm to be constructed in Poland. Acting as a subcontractor within the consortium comprising DEME Offshore, TFKable Group, and NKT, G-tec undertook the task of surveying approximately 130 km of export cables and 127 km of inter-array cables, facilitating the connection of 76 wind turbines and two offshore substations.

Leveraging state-of-the-art UXO detection technology, advanced data processing, and geophysical data interpretation, the project was executed aboard G-tec’s DP survey vessel, ‘Mainport Geo,’ spanning the winter months and culminating in April 2024.

The comprehensive engineering and UXO survey conducted by the consortium serve to mitigate risks associated with cable route design and installation, ensuring avoidance of both human-induced and natural hazards. The UXO detection initiative encompassed all turbine locations, offshore substation sites, as well as inter-array and export cable routes, to be succeeded by a subsequent identification and removal phase.

The UXO campaign, orchestrated by Mainport GEO, employed a highly efficient single-pass methodology featuring 1 Side Scan Sonar and 2x ROTV-steered Magwingframes, operated and monitored simultaneously. Following the completion of UXO operations, G-tec will issue ALARP clearance certificates for designated seabed operational corridors.

With 1.2 GW capacity, Baltic Power stands as Poland’s largest offshore wind project, strategically situated 23 km off the coast near Łeba. Poised to supply renewable energy to over 1.5 million households, Baltic Power is a collaborative effort between the ORLEN Group and Northland Power.

Source: G-Tec