ABB will provide hybrid-electric propulsion systems for Washington State Ferries’ first battery-powered newbuild vessels. The company will equip two new 160-auto ferries under the Ferry System Electrification Program.
Washington State Ferries (WSF), the largest ferry operator in the United States, selected ABB to supply and integrate complete hybrid-electric propulsion packages. The contract launches WSF’s long-term plan to transition its fleet to electric power.
Eastern Shipbuilding Group will build the two vessels. The ferries will enter service in 2030 and 2031. The agreement also includes an option for a third ship. WSF plans to build up to 16 hybrid-electric ferries by 2040 as part of its modernization program.
ABB will deliver full onboard systems. These include power distribution, energy management, and ship automation. Each vessel will carry the largest marine battery system ever installed in the United States.
The propulsion system uses ABB’s Onboard DC Grid™ and PEMS™ energy management software. These systems will reduce fuel use and operating costs. They will also improve vessel efficiency compared with today’s diesel ferries.
Each ferry will be equipped with a 13.2-megawatt-hour battery system. The batteries enable zero-emission operation in ports and on short routes. This will significantly reduce air pollution in the region.
ABB first joined the project in 2024 as propulsion system provider. The company now moves into contract execution following confirmation of ship construction.
David Sowers, Program Administrator at Washington State Ferries, said the project represents the largest ferry electrification program in the United States. He said ABB’s technology reduces risk and supports on-time delivery. He added that the systems will improve reliability and cut emissions.
ABB’s systems will also reduce vessel vibration and noise. This will improve comfort for passengers and crew. It will also reduce disturbance to wildlife and coastal communities.
Bruce Strupp, Vice President of ABB’s Marine & Ports division in the Americas, said the company is proud to support WSF’s decarbonization goals. He said ABB’s technology will help modernize the fleet while delivering reliable service across Puget Sound.
