Battery Hybrids & Full-electric Vessels

All-electric tugs: The future is here

By 2024-06-28T09:54:00

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The christening of the eWolf has signalled a step change in electric tug demand

Crowley’s eWolf is the first all-electric, ship assist harbour tugboat in the US, and it will undertake busy eight-hour shifts on a single charge in the Port of San Diego. The tug, built by Master Boat Builders, has a bollard pull of 70 tons.

The energy storage capacity was determined based on the operational profile of existing Port of San Diego tugs. The tug also has backup diesel gensets for range extension.

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