US company National Oilwell Varco (NOV) is to design and deliver equipment to the first Jones Act compliant offshore wind jack-up vessel.
NOV said contracts had been agreed with Keppel AmFELS for the GustoMSC NG-16000X-SJ vessel design for Dominion Energy.
It will supply the integrated jacking system for the vessel, as well as the design.
The vessel hull will measure 144 metres by 56 metres with a depth of 11.5 metres.
The jack-up will accommodate up to 119 people, a 2200-tonne main crane, and have a 11,500-tonne carrying capacity.
GustoMSC is part of NOV.
Keppel AmFELS will construct the vessel.
Seajacks will assist Dominion Energy during construction and operations.
GustoMSC commercial director Jan-Mark Meeuwisse said: “At GustoMSC we are immensely proud to partner with Dominion Energy, Seajacks, and Keppel AmFELS as we make a historical step in US offshore wind.
“Together we are working hard to develop the first purpose-built wind turbine installation jack-up vessel for use in US waters.”
The Jones Act requires all vessels carrying goods between two US points be transported on ships built, owned, and operated by American citizens.
The Dominion vessel will be operational at the end of 2023 and is expected to base out of the Hampton Roads region of Virginia.


