Mayflower Wind inks agreement with Gladding-Hearn for hybrid CTV


Mayflower Wind announced the signing of an agreement with Gladding-Hearn Shipbuilding/Duclos Corporation of Somerset, MA for the specification, design, and manufacture of a Jones Act-compliant hybrid battery diesel electric Crew Transfer Vessel (CTV).

The design of the CTV aims to provide fuel savings and emissions reductions, including the use of Lithium-Ion battery energy storage to create a hybrid vessel that will be a bridge to full electrification.


The multi-party agreement includes other maritime collaborators from across the globe including Incat Crowther (Australia/UK/Lafayette, LA), BAR Technologies (UK), Corvus Energy (Norway), and ABS (Spring, TX) and will proceed if Mayflower is awarded a contract under the latest Massachusetts procurement for offshore wind.

“Mayflower Wind aims to develop the most innovative, fuel-efficient CTV built in the United States,” said Michael Brown, CEO of Mayflower Wind. “Ensuring that this vessel is constructed at a shipyard in Somerset is a big boost to the Massachusetts maritime economy and launches this shipyard toward a new and growing market.”


Incat Crofter is the designer of the vessel, which will be based upon one of its CTVs already in service in Europe and customized to suit local requirements.


ABS is onboard to provide design review for Approval In Principle, verification of applicable Rules, standards and US Coast Guard Regulations, and Classification of the CTV.

BAR Technologies brings its Foil Optimized Stability System which is designed to provide fuel savings and reduced vertical accelerations for improved safety and comfort, as well as its Computational Fluid Dynamics modelling and simulation that is said to optimise the hull and foils to reduce the drag and increase fuel efficiency.

Corvus will supply its onboard battery energy storage solution to which aims to lower emissions during operations.

Design of the vessel would occur during 2022-2023, setting the stage for building and launching the hybrid CTV in the mid 2020’s, timing that would fit well with the start of operation of wind turbines by Mayflower Wind.

Mayflower Wind is a 50/50 joint venture between Shell and EDP Renewables. Itis developing an offshore wind lease area with the potential to supply over 2,000 MW.  In November 2019, it was named winner of the Commonwealth of Massachusetts’ second offshore wind solicitation. The joint venture was successful with a bid of 804 MW, which is expected to power approximately half a million homes.