Green Volt Offshore Wind Farm: Full survey control. On time. On budget.

Every offshore development begins with one critical requirement: confidence in the data.

For the Green Volt Offshore Wind Farm, Global Maritime managed one of the industry's most comprehensive survey campaigns, supporting the development of a 500 MW floating offshore wind project through procurement, management and delivery of combined 3D UHRS and seabed geophysical surveys.

The objective was clear: achieve full coverage, maintain strict commercial control and deliver high-quality survey data to support future development decisions.

Challenges

The survey programme involved a high-value vessel spread, demanding seabed conditions and one of the largest survey scopes yet undertaken for a floating offshore wind development.

Success depended on balancing technical performance, commercial management, and operational efficiency throughout the campaign. Accurate forecasting, daily decision-making, and close contractor management were all critical factors.

Managing the campaign from start to finish

Global Maritime managed the project from tendering and market engagement through mobilization, offshore support, and final data delivery.

Using its Survey Management Platform and proprietary simulation capabilities, the team maintained visibility of survey progress, costs and project performance throughout execution. This provided the client with real-time control of both technical and commercial aspects of the campaign.

Results

The survey successfully achieved full coverage across the site while meeting required data quality standards.

The campaign was completed on time and within budget, despite challenging early sensor issues. It also deployed the largest 3D UHRS seismic array used in offshore wind to date and demonstrated exceptional accuracy in schedule forecasting.

The result was a high-quality dataset and a strong foundation for the next phase of project development.

Lessons learned

Successful offshore wind projects are built on reliable information.

The Green Volt campaign demonstrated how technical expertise, proactive project management and advanced digital tools can work together to strengthen both project outcomes and commercial performance.

This is not business as usual.