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Crowley Debuts First Fully Electric Tugboat in the U.S.

It will generate 2.5 tons less of diesel particulate matter and 3,100 metric tons less of carbon dioxide.

E Wolf Exteriors 6v2
Crowley

Crowley has accepted delivery of eWolf, the first all-electric, ship assist harbor tugboat in the U.S., a milestone advancing the company's commitment to sustainability and decarbonization. The tugboat, which was designed by Crowley's engineering services team, will operate with zero emissions while providing the complete performance capabilities of a traditional tug.

The eWolf represents an innovation through a collaboration among Crowley, federal, state and local government partners. Their mutual commitment to improve air quality through battery energy for the vessel and port technology, including a shoreside, microgrid charging and storage station at the Port of San Diego.

The tug, constructed by Master Boat Builders at its shipyard in Coden, Alabama, will generate 178 tons less of nitrogen oxide (NOx), 2.5 tons less of diesel particulate matter and 3,100 metric tons less of carbon dioxide (CO2) over the first 10 years of its operations – the equivalent of removing 350,000 gallons of gas from use, according to EPA calculations. The vessel uses ABB's innovative, integrated electrical propulsion system.

After transport and final demonstration trials, the 82-foot harbor tug will operate at the Port of San Diego upon completion of Crowley's microgrid shoreside charging station. Harbor operations are expected to begin in spring 2024. The project partners include the Port, San Diego County Air Pollution Control District, the California Air Resources Board (CARB), the U.S. EPA and the U.S. Maritime Administration.

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