600-Passenger, Hybrid-Electric Harbor Tour Boat

The Enhydra is an innovative, 600-passenger, hybrid-electric aluminum monohull, built by All American Marine for and Red and White Fleet in San Francisco. Designed by Nic de Waal of Teknicraft Design in Auckland, New Zealand, the 128 ft x 30 ft aluminum, monohull vessel is currently the largest lithium-ion battery, hybrid-electric powered vessel in North America built under USCG Subchapter K certification. The 600-passenger vessel is specifically designed for harbor tours of San Francisco Bay and the Golden Gate Bridge.
All American Marine partnered with BAE Systems to design and integrate the complete electric hybrid system. BAE supplied their HybriDrive propulsion system that includes a generator, propulsion power converter, house load power supply and control system. The generator is mounted to a variable speed Cummins QSL9 410 hp diesel engine. The system offers parallel hybrid powering of the AC traction motor from the generator, the batteries or both. The motor is coupled to the propulsion shaft via a reduction gear for thrust and increased propeller efficiency. AAM said that with this configuration, torque is immediately available for the propeller, and the speed can be precisely controlled.
BAE Systems’ HybriGen system has lower engine operating hours and is more streamlined than a conventional drive, requiring fewer parts, thus resulting in savings in both fuel consumption and maintenance costs.
Simultaneously, the propulsion system provides a silent, emissions-free experience for recreational cruise excursions. The BAE HybridDrive system can automatically use full electric battery operation at slower speeds and when maneuvering in and out of the harbor with the Enhydra’s two Veem Star four-blade props. At higher speeds, the generator will automatically engage and augment the additional power demands of the traction motor.
Contact All American Marine today and tell us about your vessel needs!
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[@1mollymom]

Informative and well done video that balances the aesthetics and the technical aspects of a beautifully built vessel.

[@jodykennedy4796]

Wow!!