Empire Wind vessel cancelled with ship '99% finished': Equinor mulls options

Shipbuilder to consult lawyers as $475m deal for vessel to work on New York offshore wind farm project terminated

Maersk Offshore Wind's WIV concept (rendered image)
Maersk Offshore Wind's WIV concept (rendered image)Photo: Maersk Offshore Wind

Shipbuilder Seatrium said its $475m contract to build a wind turbine installation vessel for Equinor’s Empire Wind 1 project has been cancelled – with the ship “98.9% completed”.

Singapore-based Seatrium said it received a notice of termination under the contract yesterday from client Maersk Offshore Wind.

Seatrium told its shareholders that it will now “explore viable solutions, including with the end-customer, Empire Offshore Wind LLC” – the Equinor project company building Empire Wind off New York.

Equinor told Recharge: "We have been informed by Maersk that they have decided to terminate the contract with Seatrium to build the wind turbine installation vessel contracted by Empire Offshore Wind LLC. We are now assessing the implications of this and determining what our options are."

The shipbuilder also said it is reviewing the termination notice “as well as the allegations set out therein. SEI is also evaluating its legal and commercial options in respect of the Contract, including the right to contest the Notice of Termination, and/or to commence legal proceedings to seek all available remedies for wrongful termination”.

Seatrium does not specify the nature of the allegations. "As at the date of this announcement, the project is approximately 98.9% completed," it added. The shipbuilder's shares fell almost 7% in Singapore today following news of the cancellation.

The vessel was ordered by Danish shipping giant Maersk in 2022 and delivery was due this year.

Maersk Offshore Wind said in a comment sent to Recharge: "Maersk Offshore Wind can confirm that it has terminated its newbuilding contract with Seatrium Energy (International) Pte. Ltd. (formerly Sembcorp Marine Rigs & Floaters Pte. Ltd.) in Singapore for the construction of a Wind Installation Vessel due to delays and related construction issues.

"Maersk Offshore Wind has no further comments at this time."

The 800MW Empire Wind 1, due in service in 2027, has been at the centre of Donald Trump’s war on wind power.

The project, at that stage 30% complete, was hit by a stop work order by the Trump administration earlier this year, which was subsequently lifted after negotiations variously involving the state of New York, Equinor and the Norwegian government.
Recharge reported earlier this year how the company's CEO acknowledged Trump's anti-wind agenda had disrupted those plans.

Maersk Offshore Wind's WIV concept was developed as an effective way to deploy turbines under the restrictions of the US Jones Act.

The Jones Act restricts foreign-flagged vessels from calling in at consecutive US ports or points on the outer continental shelf, including a wind turbine foundation.

The lack of domestically built installation vessels has forced offshore wind developers to deploy costly feeder barge solutions to deliver blades, nacelles, and towers to the foreign-flagged WIV parked at the lease site.

The US has only a single WIV, Dominion Energy's Charybdis, currently being deployed for its Coastal Virginia Offshore Wind array.

The Maersk WIV would employ a unique system that would lock the feeder barges to the vessel, allowing for faster and safer delivery of components. Maersk claimed its system would cut installation time by 30-35% when the vessel was announced in 2022.

US shipbuilder Edison Chouest was contracted to supply specialised feeder barges and tugs for the Maersk vessel. Recharge has reached out to Edison Chouest for comment on how its loss will impact deployment and is awaiting reply.

Empire Wind is slated to use super-sized 15MW Vestas turbines, which only a few WIV globally can lift, and may face challenges finding a replacement vessel.

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Published 10 October 2025, 07:48Updated 10 October 2025, 19:43
EquinorMaerskEmpire Wind Offshorewind