Enhydra

Red and White Fleet is proud to announce the addition of the Enhydra to its Fleet! This 600-passenger vessel is the largest of its kind in the United States and is the first aluminum hulled, lithium-Ion battery plug-in hybrid vessel built from the keel up under US Coast Guard regulations. The Enhydra is 128 ft in length with a 30 foot beam and can cruise is all electric-mode at 7 knots for 2+ hours, consuming less than 8 gallons per hour. With near silent operation, the Enhydra comes equipped with elegant interior finishes, clear handrails for maximum viewing capacity, a state-of-the art sound system and personal audio headsets for audio tours in 16 languages.
The Enhydra is Red and White Fleet’s first step towards its goal of reaching a zero emissions fleet by 2025 and represents our firm commitment to sustainability, the environment and the protection of San Francisco Bay.

In 2015 RWF designed and commissioned a new sightseeing vessel. The new vessel, christened, Enhydra (a tribute to the California sea otter), is the largest plug-in hybrid electric passenger vessel built from the keel up under US Coast Guard regulations. The vessel at 128 feet in length has a capacity of 600 passengers.

The Enhydra is RWF’s first step towards its goal of reaching a zero emissions fleet by 2025. The hybrid drive system operates much the same as a plug-in Prius, efficiently moving from all electric to mechanical-electric mode depending on load and providing no less than 20% to 30% fuel savings. Additionally, the onboard permanent magnet generators are powered by EPA Tier 3 engines run on 100% biofuel, further reducing emissions with a 30%-80% lower carbon intensity and lower criteria emissions than fossil fuel.

The hybrid architecture allows overnight charging of the battery packs, off-setting fuel consumption with green energy supplied from San Francisco PUC’s hydro-electricity. Further, the design of the propulsion system anticipates moving the vessel to full electric with upsized battery packs. RWF is actively working on the shoreside infrastructure required to provide fast charging to these larger battery packs, and once the charging capacity is installed, the Enhydra and the rest of the RWF will move to all electric operation.

The Enhydra was launched on August 13, 2018 in Bellingham Washington and is debuting in San Francisco on September 13th 2018.