MARKED FOR HYBRIDIZATION.
Washington State Ferries (WSF) is taking steps towards reducing fleet emissions to zero with the conversion their largest ferry class, the Jumbo Mark IIs, to plug-in hybrid-electric power. Now roughly 25 years into their service lives, the ferries are also due for a propulsion control systems overhaul. WSF selected Siemens Energy Marine Solutions to design and integrate the new propulsion controls and battery-hybrid system, and Siemens hired Glosten to provide the preliminary, contract, and production design integration of the propulsion controls and plug-in hybrid system. Glosten and Siemens are working closely with WSF’s internal engineering team on the mechanical and structural design modifications that will be required to accommodate the 40 tons of batteries powering the vessels, and their auxiliary systems.