Page 18: of Marine News Magazine (July 2019)

Propulsion Technology

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River that some times acts like a unit tow – by volume of

The two biggest sticking points for the use of batter- ies on commercial vessels have been, until recently, vessels, this is properly the most common pushboat vessel weight and/or the physical footprint of these units operation in the US. ABB and Ballard Power Systems will necessary to provide the required propulsion power. leverage the existing kilowatt-scale fuel cell technologies and

We’ve come a long way, haven’t we? Tell us a little optimize them to create a pioneering megawatt-scale solu- about the progress made on that front.

tion suitable for powering larger ships. With an electrical

Marine batteries are to some degree rooted in “ESS sys- generating capacity of 3MW (4000 HP), the new system tems” – containers full of batteries that provide peak shav- will

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Marine News is the premier magazine of the North American Inland, coastal and Offshore workboat markets.