Crowley’s eWolf named Tugboat of the Year in 2024 American Tugboat Review

The all-electric, zero-emission tug serving the Port of San Diego features innovative technology, impressive power and advanced performance capabilities and uses a shoreside microgrid station for charging. The first of its kind in America, the eWolf is leading the next generation of sustainable maritime and port solutions.

The first electric-powered tugboat in the United States remained eerily quiet as it accelerated toward 10 knots. There was no engine noise. No vibration. No exhaust, sounds or smell. EWolf’s 6.2-megawatt-hour powerplant relies on nearly 1,100 Corvus Energy lithium-ion batteries for power while underway. Those batteries supply electricity to twin 2,100-kW Ramme electric motors installed atop Schottel L-drives. ABB provided key electrical components and integration know-how.