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All-Electric Ships on the Horizon as Rolls Adds Battery Business


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These translations are done via Google Translate
Aug 16, 2018, by Áine Quinn
(Bloomberg)

Rolls-Royce Holdings Plc has begun offering its own battery-powered ship engines in a move that signals the gathering momentum behind a push toward hybrid and ultimately all-electric vessels.

While maritime demand for lithium-ion batteries is focused on providing top-up power for traditional diesel and gas-turbine ships, the technology could propel fully electric craft over a limited range, according to Rolls, which previously sourced such equipment from third-party providers. Branded SAVe Energy, the new system will be delivered from the group’s marine arm in Bergen, Norway.

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In hybrid mode the batteries will kick in to provide additional propulsion on vessels spanning ferries to trawlers when a conventional engine is operating at peak thrust, London-based Rolls said. They can also power “hotel” functions of energy-hungry cruise ships, such as lighting and kitchens, and in all-electric mode will slash emissions in sensitive seas such as the Arctic Ocean.

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Fully electric ships, like autos, have struggled to penetrate major markets because of their limited battery capacity and a lack of charging infrastructure. Norway has led the way, with the Ampere ferry transporting up to 120 cars across the country’s deepest fjord and Kongsberg Gruppen ASA — which is buying Rolls’s marine arm — developing an electric container ship to carry fertilizer 37 miles from a production facility to the port of Larvik.



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