TRANSPORT n ABB says that the open-water tests verify that the Dynafin system is ready to be commercialised. It will focus initially on smaller and medium-sized vessels, such as ferries, small cargo ships, offshore support vessels and yachts, in the 1–4MW power range. ABB is hoping to have the first practical applications of the Dynafin technology in 2026. Separately, a Swedish marine developer called SeaFjord Energy, has come up with a concept design that uses two Dynafin propulsion systems to propel an “e-bunker” vessel that would carry a large battery pack capable of providing energy to other ships in locations where shore power infrastructures are inaccessible – such as in remote fjords and offshore locations. Such e-bunker vessels could offer a new way of supplying energy to ships. They will need high propulsive efficiency to reduce the energy needed to power the vessel, thus leaving more available for charging other ships. The propulsors on the e-bunker vessel would be integrated with an onboard DC grid that will allow it to be charged through a shore connection, or to draw energy from a wind farm. It will then deliver up to 50MW of power to other vessels. “This is the world’s first e-bunker vessel which will provide electric power to ships in fjords, ports and offshore,” says SeaFjord Energy’s COO, Elias Magnusson. “ SeaFjord has developed the concept vessel in collaboration with FKAB Marine Design and Bureau Veritas, a French company that specialises in testing, inspection and certification. At the heart of the e-bunker vessel’s combined power and control system is ABB’s PEMS (Power and Energy Management System), which enhances use of the vessel’s power resources in a safe, energy-efficient and environmentally friendly manner. It optimises energy use and flows onboard, as well as with vessels bunkering from it. “ABB is excited to collaborate on this groundbreaking design,”says Marcus Högblom, head of ABB Marine & Ports’passenger business. “Our electric power and propulsion system enables maximal efficiency both for transmission and propulsion, which means that a larger part of the carried energy can be used by bunker customers.” n modular r Flexible, In range of high nnovative Drive So lutions 282,000 Nm. ted output t with ra MaxxDrive Industri from 0.12...200kW y, robust g efficienc torques up to ial Gearboxes W. geared motors Intellig ent Flexible Reliable + NORD Gear Ltd | Tel + 44 (0) 1235 534404 | GB-s sales@nord.com | www.nord d.com The e-bunker vessel concept offers a new way of supplying energy to ships at sea, propelled and guided by a pair of Dynafins at its stern
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