Jun 22, 2022 | Ship design & naval architecture news

Shipping companies James Fisher and Graig Shipping have unveiled a new service operation vessel (SOV) design concept, in conjunction with Ulstein Design & Solutions and DNV.

The Ulstein Twin X-Stern vessel, designated Ulstein SX221 Diamond SOV, will support the UK’s expansion of offshore wind energy generation. The concept is the result of extensive collaboration by the Diamond Consortium, a collaboration between James Fisher and Graig with support from DNV and design partner, Ulstein Design Solutions. The result will provide a future-proof design to address the increased demand for SOVs.

Placing sustainability at the fore, the Diamond SOV concept will enable offshore wind progress with a scalable, modular solution that can be achieved through high volume series construction to meet developer time and budgetary constraints. With a significantly reduced energy consumption and increased manoeuvrability, the vessel will help developers lower their own emissions in the construction of offshore wind farms.

Jim Hey, group business development director, James Fisher said: “The philosophy behind the Diamond SOV has been successfully applied to other vessel segments for many years: developing a specification that meets a market need while allowing for a high degree of customisation and configuration for individual owners and developers. We chose to go with Ulstein due to their history of successful innovative designs and believe the Twin X-Stern to be the best choice for service operations of offshore wind farms. Building SOVs in series volumes achieves significant economies of scale and delivers a design that can be built in multiple yards simultaneously. Considering the anticipated market demand for SOVs in the UK and beyond by the end of the decade, this exciting new concept places the UK at the centre of enabling global offshore wind ambitions.”

Hugh Williams, CEO, Graig Shipping PLC said: “We are extremely pleased to be working closely with James Fisher on this project, and to be bringing our experience and expertise to it. We have successfully partnered over many years with DNV on the Graig-led Diamond business model and we are now applying this proven, scalable strategy to the global offshore wind markets with a particular focus on UK waters, helping to meet the challenging environmental goals in front of us.”

Arnstein Eknes, segment director, Special Ships, DNV said: “With larger turbines being installed further out at sea, vessels and crews will be travelling greater distances and working for longer periods of time in harsher environments. The opportunities offered by digitalisation and introduction of sustainable solutions, whilst maintaining high dependability during operations are vital for the next generation of SOVs. This is why we are thrilled to be spearheading development of smart notations and services facilitating the novel solutions provided by this next-generation Ulstein SX221 Diamond SOV.”

The Diamond Consortium is currently in discussion with major shipyard groups to reach specifications in conjunction with customers, with the possibility of the first vessel being completed by the end of 2024.

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