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GreendreamsSubsea Cable Service

Technology

Instrumentation and fleet built for the deep

Our campaigns rely on equipment we operate ourselves, maintained by crews who understand what the seabed does to steel, glass and polyethylene.

Cable-laying vessels5,000 t cable capacity · 24 fibre-pair handling

Cable-laying vessels

Purpose-built lay and repair ships with linear cable engines, carousels and full jointing workshops.

Work-class ROVs3,000 m rated · jet & grapnel toolskids

Work-class ROVs

Inspection, burial assessment and intervention vehicles with high-definition imaging and manipulator arms.

Marine survey systemsMultibeam · sub-bottom · magnetometer

Marine survey systems

Integrated geophysical suites producing bathymetry, sediment profiles and hazard identification.

Fibre optic test equipmentOTDR · COTDR · optical spectrum analysis

Fibre optic test equipment

Acceptance testing and fault localisation to within metres across thousands of kilometres of span.

Dynamic positioning vesselsDP2 and DP3 class stationkeeping

Dynamic positioning vessels

Precision holding over splice locations and landfall approaches in demanding sea states.

Offshore cranes & handlingActive heave compensated to 150 t

Offshore cranes & handling

Deployment and recovery of ploughs, trenchers and protection structures in open water.

Live network and route coverage

Our network operations centre monitors optical performance continuously, with acoustic sensing alerts on supported systems.

North AmericaSouth AmericaEuropeAfricaMiddle EastAsiaAustralia
Completed routes Ongoing programmesHover a landing region for detail