The Carbon Trust’s Offshore Wind Accelerator (OWA) programme has announced four winners of a competition designed to accelerate the development of technologies that will enable a reduction in emissions and fuel consumption for Crew Transfer Vessels (CTVs) used to operate and maintain offshore wind farms.
Submissions were received from a range of single applicants and partnerships, representing a wide range of technologies and alternative fuel sources.
The winners are: Chartwell Marine and Seaspeed Marine Consulting, CWind, Robert Allan Limited, and Windcat Workboats and CMB Technologies.
Each team will receive advice from the OWA partners to support the commercialisation of their technologies, in addition to sharing £300,000 in funding.
According to the Carbon Trust, the selected technology concepts "demonstrate the potential to reduce fuel consumption and emissions compared to conventional CTVs and span a range of technology readiness levels, from desktop studies, through to prototype vessel construction".
The winning applications are:
Chartwell Marine and Seaspeed Marine Consulting:
A desktop study into the development of a 15m hybrid diesel/electric outboard CTV. The concept combines a high freeboard hull with two diesel and two electric outboard engines, which have not previously been used on CTVs. The design proposes to operate in up to 1.5m significant wave heights and transit speeds of 20 to 25 knots.
Supporting technology development for the construction of a prototype hybrid diesel/electric Surface Effect Ship (SES) CTV. The design combines a hybrid diesel/electric drivetrain with proven SES technology. The 22m vessel will be able to carry 24 passengers at 40 knots in significant wave heights in excess of 1.5m.
Robert Allan Limited
A desktop study for a methanol/electric hybrid CTV. This concept takes advantage of the high volumetric energy density and stable liquid properties of methanol, in combination with a hybrid battery propulsion system. The study will look at the feasibility of applying this novel fuel type to a 21m CTV, capable of 20 knots.
Windcat Workboats and CMB Technologies
Supporting the development of a prototype hydrogen powered CTV which utilises hydrogen-diesel co-combustion. Hydrocat 1 will use hydrogen fuel, delivering emission savings without compromising vessel performance.
The projects are expected to conclude their work by the end of 2020.
“This competition demonstrates the commitment of the offshore wind industry to lowering the environmental impacts of its supply chain, and we're looking forward to collaborating with the four winners to progress these innovative ideas,” says Dan Kyle-Spearman of Offshore Wind Access Systems at the Carbon Trust.