OEG triples offshore wind CTV fleet with three new UK-built vessels
The 26-metre vessels, designed by Chartwell Marine, will support UK east coast wind projects from 2027.
UK-based offshore services provider OEG Marine Services has commissioned three new crew transfer vessels (CTVs) from Isle of Wight shipbuilder Diverse Marine to strengthen its offshore wind fleet. The vessels, designed by Chartwell Marine, are scheduled for delivery across 2027 and will support construction at an offshore wind project off the UK’s east coast.
The new vessels follow Chartwell Marine’s Brevity SL class design, each measuring 26 metres in length with a load line length under 24 metres. All three will be constructed at Diverse Marine’s Cowes facility and will share identical specifications. The first vessel will feature quad Volvo Penta IPS propulsion, meeting IMO Tier III emissions standards, and will include Hull Vane transom foils to improve fuel efficiency during operations. Bureau Veritas will classify the vessels, which will sail under the UK flag.
Technical specifications and build details: offshore wind vessels
The order builds on the successful delivery of OEG’s Fulmar in 2025, another Chartwell-designed vessel that has since operated at Scotland’s Inch Cape offshore wind farm. The new CTVs will join the Fulmar and the existing Furioso in OEG’s fleet.
Leif Cooper, director of OEG Marine Services, attributed the decision to expand the fleet to the Chartwell design’s strong performance. The company’s experience with the Fulmar demonstrated the vessels’ operational advantages, leading to the new order.
Expansion driven by proven performance
«The Chartwell design performed better than expected, prompting the company to return to Diverse Marine for additional vessels.»
Leif Cooper·Director, OEG Marine Services
The three new vessels will play a key role in supporting offshore wind construction activities in 2027, reinforcing OEG’s capacity in the UK’s growing renewable energy sector.
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