Page 47: of Maritime Reporter Magazine (May 2015)

The Marine Propulsion Edition

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Ironically, the most interesting part of Norled Ampere’s propulsion package isn’t on the vessel – it’s on dry ground. One of the primary design challenges was solving for how the ferry could charge its high-capacity battery packs between crossings. Pulling a full charge into the batteries in less than 10 minutes would put too much stress on the modest electrical grids serving the Lavik and Oppedal villages.

into the batteries in less than 10 minutes incorporate a liquid-cooled version of energy storage. The recharging stations was second only to neighboring Sweden would put too much stress on the mod- an energy storage system. It contains slowly charge themselves from the vil- - and not by much. Government support est electrical grids serving the Lavik modules that use advanced lithium poly- lages’ hydroelectric power grid continu- of innovations like the Norled Ampere and Oppedal villages. The ferry would mer cells, with a total charging capacity ously and at a very low current draw. ferry is a big reason why the nation can literally cause power outages for entire of 1.46 MWh. The energy management At each ferry landing, the shore power- wear its green designation with pride. communities. An alternative charging system monitors both thruster control as charger can quickly charge the batteries Although Norway is one of the world’s approach was required for dockside well as downstream consumers on the while passengers and cars are unloaded top oil-producing nations, it’s blessed charging at each terminal. grid. It also controls the electrical ? ow and loaded. with abundant hydropower, which pro-

Siemens worked with an energy com- between the batteries and the propul- vides most of the country’s electric- pany to develop a shore-based recharg- sion system. The ? ow of energy can be Keeping Norway Green ity and helps all-electric ferries like the ing station and optimized it to work with controlled bi-directionally, allowing for Out of 60 nations ranked in the 2014 Norled Ampere contribute to the Earth’s the ferry’s battery packs. The stations an overhauling load to be put back into Global Green Economy Index, Norway environmental well being. www.marinelink.com 47

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.