EBDG to Design WSF Hybrid-electric Ferry

Maritime Activity Reports, Inc.

October 25, 2019

Photo: Elliott Bay Design Group

Photo: Elliott Bay Design Group

Elliott Bay Design Group (EBDG) was recently selected by Vigor Fab as the engineering firm that will provide functional design for the new hybrid-electric Olympic Class ferries for Washington State Ferries (WSF). 

EBDG is responsible for redesigning the vessels to accommodate the major change in propulsion type without disrupting structural components. The ferries will operate on all-battery power during crossings or can revert to a hybrid, diesel-electric propulsion if required. Battery recharging will typically occur dockside at the terminals during offloading/loading procedures.

Earlier this year, Washington State's Legislature authorized a contract extension for Vigor to build up to five hybrid-electric versions of their 144-vehicle Olympic Class. The new-build authorization is a direct result of the 2040 Long Range Plan that identified the initial aspects of vessel and terminal electrification. EBDG was a participant of the plan and is now leading the effort for an additional, supporting addendum – the WSF System
Electrification Plan. The System Electrification Plan will identify a detailed plan for deploying hybrid-electric vessels throughout the ferry system.

WSF operates the largest ferry system in the United States, with 23 vessels, 20 terminals and 23 million passengers. The new ferry will utilize hybrid-electric propulsion, tapping clean Northwest hydropower.

EBDG has performed design work on the last 20 vessels built for WSF, and as been a major contributor to WSF's electrification efforts thus far by supporting hybrid feasibility studies and life-cycle cost analyzes for both the Jumbo Mark II and Olympic Class ferries.

Maritime Reporter Magazine Cover Oct 2019 - Marine Design Annual

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