GeoXYZ Appointed for UXO and Geotechnical Surveys on Proposed Northern Ireland-Scotland Interconnector

Belgium-headquartered marine survey firm GeoXYZ is preparing to undertake unexploded ordnance (UXO) investigation and geotechnical surveys along the proposed route of a new subsea electricity interconnector between Northern Ireland and Scotland, according to Offshore Energy. The appointment marks a significant early-stage milestone for the interconnector project, with pre-construction survey work representing a critical step in assessing the seabed conditions and identifying any legacy ordnance hazards that could affect cable installation and long-term operational safety. UXO surveys are a standard requirement for subsea infrastructure projects crossing the waters around the British Isles, where unexploded munitions from World War II-era naval and aerial activity remain a recognised hazard on the seabed. Geotechnical investigations, meanwhile, provide essential data on sediment composition, seabed stability, and soil bearing capacity — all of which inform cable burial strategies and route optimisation. A Northern Ireland-Scotland interconnector would strengthen electricity grid resilience across both regions and support the integration of renewable energy generation, particularly as offshore wind capacity continues to expand in the Irish Sea and along Scotland's coastlines. Subsea interconnectors play an increasingly important role in balancing supply and demand across national and regional grids, enabling the transfer of surplus renewable power to areas of higher demand. GeoXYZ, which specialises in offshore geophysical and geotechnical survey services, brings established expertise in pre-installation seabed characterisation for subsea cable and pipeline projects. The company's mobilisation for these surveys signals that the interconnector project is advancing through its development phases ahead of any potential construction programme. The scope and timeline of the broader interconnector project were not detailed in the available reporting, but the commissioning of marine survey work typically precedes environmental impact assessments, regulatory consent applications, and procurement processes for cable installation contractors.