Crowley Engineering Services has released the design details for the first fullyelectric tugboat with autonomous capability for the U.S. market.
Crowley is promoting the design as a sustainable and highperforming solution for ship assist and harbor services in any port. It leverages a large battery system and power saving technology enabling a fullyelectric mode of operation while producing zero air emissions or greenhouse gases. The 82foot tug will provide 70 short tons of bollard pull, with an Azimuthing drive propulsion system with two 1,800 kW motors and a 6 MWh battery.
Crowley Engineering Services is one of four business units of Jacksonville, Floridabased Crowley Maritime Corporation. The design was developed using inhouse expertise from recently integrated Jensen Maritime, a former Crowley subsidiary which was integrated into the Crowley Engineering Services unit earlier this year.
Crowley says the design also supports fully customizable features to meet the vessel design requirements with the future in mind. If desired, the platform design can be adjusted for alternate power capacities suitable for a standard hybrid framework. The fully modular batteries allow for upgrades as technology changes. Crowley has also developed an onshore charging station to fully support charging and reliable performance at the home port.
“Crowley’s design provides operators the tugboat solution to continue serving ships quickly and powerfully, while reducing their environmental impact by eliminating a carbon footprint,” said Ray Martus, vice president, Crowley Engineering Services. “This new design sets the standard for innovation by showing that sustainability and power can work together seamlessly in our maritime industries.”
With no exhaust stack, the tug has 360 degrees of visibility from the pilot’s station, allowing the operator to see without obstruction. The tug is also designed for future autonomous operation to increase the safety and efficiency of the operation including integrated automation and control systems. “The intelligent maneuvering and control system offers more efficient vessel operations and allows masters to focus holistically on the overall control and positioning of the vessel in increasingly busy harbors,” Crowley says.
More on the design is below:
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