Offshore Wind Cable Installation Vessels: Market Overview
The offshore wind cable installation vessel (CLV) market is undergoing a critical expansion phase. With approximately 60+ specialized cable-laying ships operating globally, the fleet faces growing pressure from an accelerating pipeline of offshore wind projects worldwide. Nine newbuild CLVs are expected to enter service by end of 2026, nearly matching the four delivered between 2020 and 2024.
Key Operators and Fleet Capabilities
The market is served by two categories of operators: marine contractors (Boskalis, DEME, Jan De Nul, Seaway7, Van Oord) who charter vessels to project developers, and cable manufacturers (Prysmian, Nexans, NKT) who operate their own CLVs as part of integrated supply-and-install contracts.
| Operator | Key Vessel | Carousel Capacity | Status |
|---|---|---|---|
| Jan De Nul | Fleeming Jenkin | 28,000 t | Launched Oct 2025 |
| Prysmian | Leonardo da Vinci | 17,000 t | Operational |
| DEME | Living Stone | 10,000 t | Operational |
| Nexans | Nexans Aurora | 10,000 t | Operational |
| Van Oord | Nexus | 5,000 t | Operational |
The Capacity Bottleneck
Cable installation vessel availability is now one of the primary schedule risks for offshore wind developers. The existing global fleet of roughly 60 vessels—many aging—is insufficient to meet demand from planned multi-GW deployments in Europe, the US, and Asia-Pacific. This supply-demand imbalance is driving significant newbuild investment and pushing charter rates higher.
Next-Generation Vessels
The latest generation of CLVs represents a step change in capability. Jan De Nul's Fleeming Jenkin—launched in October 2025 at CMHI Haimen shipyard in China—boasts 28,000 tonnes of cable capacity and can lay up to four cables simultaneously in water depths to 3,000 m. Its twin vessel, William Thomson, is also under construction. Nexans' upcoming Nexans Electra, expected in 2026, adds further high-capacity tonnage to the fleet.
These vessels also reflect tightening environmental regulations: dual-fuel engines running on biofuel and green methanol, advanced NOx reduction systems, and DP3 positioning for safer operations near wind farm structures.