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| Seajacks Zeus | |
|---|---|
| Name | Seajacks Zeus |
| Type | Wind turbine installation vessel |
| Owner | Seajacks |
| Operator | Seajacks |
| Yards | Samsung Heavy Industries |
| Ordered | 2012 |
| Launched | 2014 |
| Christened | 2014 |
| Homeport | Harwich |
| Length | 216.5 m |
| Beam | 90 m (with legs) |
| Draft | 9.2 m (transit) |
| Propulsion | Diesel-electric |
| Speed | 12 kn (transit) |
| Capacity | 12,000 t crane lifts |
Seajacks Zeus is a purpose-built jack-up wind turbine installation vessel constructed to install offshore wind turbines and foundations. Commissioned in the mid-2010s, the vessel entered service amid rapid expansion of offshore wind projects across the North Sea and global markets. Seajacks Zeus operates alongside a fleet of specialized vessels supporting renewable energy infrastructure for developers, contractors, and utilities.
Seajacks Zeus was designed as a self-elevating, self-propelled jack-up vessel capable of working in challenging offshore environments associated with projects such as London Array, Hornsea Project One, Walney Extension, West of Duddon Sands, and Gemini. The hull and leg arrangement reflect design principles developed by Kværner, Bladt Industries, and Sembcorp Marine for heavy-lift and installation tasks. Main dimensions include a length overall comparable to MPI Discovery and a leg span enabling stability at sites analogous to Thanet Wind Farm and Barrow Offshore Wind Farm. The vessel’s design integrates features promoted by DNV GL and Lloyd’s Register for jack-up operations and complies with standards from International Maritime Organization classification societies.
Built at a South Korean shipyard affiliated with Samsung Heavy Industries and delivered following sea trials similar to those for Seajacks Scylla, the vessel underwent outfitting to meet specifications from clients including Ørsted, ScottishPower Renewables, Vattenfall, and RWE Renewables. The construction programme involved engineering partners with experience on projects like Gwynt y Môr and Rampion Wind Farm. After commissioning, flagging and certification processes involved authorities such as the Isle of Man Ship Registry and class approval by Lloyd’s Register, followed by acceptance trials overseen by industry stakeholders including representatives from National Grid and project developers.
Since delivery, Seajacks Zeus has been deployed to install monopiles, jacket foundations, transition pieces, and turbines on projects linked to developers such as Siemens Gamesa Renewable Energy, General Electric, MHI Vestas Offshore Wind, and Senvion consortia. Early operations mirrored logistics models used at Greater Gabbard and Westermost Rough, coordinating with port hubs like Harwich, Great Yarmouth, Rotterdam, and Aarhus. The vessel’s operating record includes weather-limited campaigns similar to those faced by A2SEA and Jan De Nul assets, and it has been engaged under contracts awarded by engineering, procurement, and construction firms including Van Oord, Boskalis, and Seaway 7. Throughout its service, safety oversight drew on best practices from Offshore Renewable Energy (ORE) Catapult and regulatory regimes of United Kingdom Maritime and Coastguard Agency.
Seajacks Zeus is equipped with a high-capacity leg system, a large main crane with heavy-lift capability rivaling cranes on vessels like Vole au Vent, and accommodations for large project teams akin to those on Seafox 5. The vessel includes dynamic positioning adjuncts used during transit and jacking operations consistent with standards from International Association of Classification Societies, and it carries toolrooms, blade-handling gear, and personnel transfer systems comparable to equipment used by NKT and ABB in offshore campaigns. Onboard systems support integrity monitoring, lifting analyses, and marine warranty surveyor engagement as commonly required by DNV GL and project financiers such as Macquarie Group and Copenhagen Infrastructure Partners.
Seajacks Zeus has been assigned to multiple high-profile installations, providing services for park builds and repowering schemes tied to projects like East Anglia ONE, Teesside A, and export cable works involving contractors such as JDR Cables and Balfour Beatty. Deployments have included campaigns in the North Sea, the Irish Sea, and export markets reaching to regions served by developers like Enel Green Power and Iberdrola Renovables. The vessel’s schedule has required coordination with grid operators including TenneT and Energinet and with port logistics platforms used by operators such as DP World and Harland and Wolff for marshalling components.
Seajacks Zeus is owned and operated by Seajacks, a company specializing in offshore wind installation and operations with corporate ties to asset management practices seen at firms such as John Laing Group and Copenhagen Infrastructure Partners. Commercial management aligns with chartering frameworks negotiated with energy companies like Shell Renewables and Energy Solutions and TotalEnergies, and insurance and risk governance engage underwriters and brokers from markets including Lloyd’s of London and Marsh & McLennan Companies. Crew management, certification, and vessel logistics are administered through seafaring recruitment and training channels analogous to those used by Vroon and Siem Offshore.
Category:Wind turbine installation vessels Category:Offshore wind energy