Crowley to build, operate first all-electric U.S. tugboat

The eWolf zero-emissions ship-assist and -escort tug is scheduled to serve the Port of San Diego by mid-2023.
Crowley Maritime Corp., the maker of high-powered ship-assist tugboats, will build and operate the eWolf, which the company says is the first all-electric harbor tugboat. The 82-ft (25-m) vessel, with 70-ton (64-t) of bollard pull, advances the Crowley mission to help move the maritime industry forward on sustainability and decarbonization.

“The eWolf represents everything Crowley stands for: innovation, sustainability, and performance,” said company Chairman and CEO Tom Crowley. “With this groundbreaking tug design, our team continues to embrace our role as leaders in the maritime industry while providing our customers with innovative and sustainable solutions done right.”

The e-tug will operate at the Port of San Diego’s Tenth Avenue Marine Terminal and will be operational by mid-2023. It will replace one tug that consumes more than 30,000 gal (114,000 L) of diesel per year. Over the first 10 years of its use, its operation will eliminate 178 ton (161 t) of nitrogen oxide, 2.5 ton (2.3 t) of diesel particulate matter, and 3100 t (3400 ton) of carbon dioxide versus a conventional tug.

“Crowley’s first-of-its-kind electric tugboat is a game-changer,” said




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