Marine Link
Tuesday, November 4, 2025

Hybrid Propulsion News

12 Aug 2025

Wasaline Hits Carbon Neutrality Mark

The Aurora Botnia, Wasaline’s flagship, represents one of the most advanced hybrid propulsion applications in the RoPax sector. Delivered in 2021, the vessel combines dual-fuel Wärtsilä 31DF engines—capable of running on LNG, LBG (liquefied biogas), and conventional marine fuels—with a large-scale battery energy storage system (BESS). Image courtesy Wasaline

Wasaline says it has become the first carbon-neutral shipping company in the Baltic Sea, reaching its original 2030 climate target six years ahead of schedule. The milestone comes as the Finnish-Swedish operator signed a biogas supply contract with Gasum and entered a FuelEU Maritime pooling agreement with Stena Line, enabling its Vaasa–Umeå service to run entirely on biofuels.The agreement makes the route the first international green shipping corridor in operation, an achievement supported by the DNV-led Nordic Roadmap.

21 May 2025

Washington State Ferry Converted to Hybrid-Electric

Source: Washington State Department of Transport

The 30-year-old Washington State Ferries vessel Wenatchee, one of the state’s three largest ferries, has been converted to hybrid-electric power. It is due to be operational again this summer.The work included:• taking out two of the four diesel generators• building two new battery rooms and outfitting them with 864 battery modules• installing new controls• installing thousands of feet of electric and fiber optic cable• painting much of the exterior of the ferry• replacing vinyl on some seats• deep cleaning.Sea trials and crew training are currently underway from Vigor Shipyard.

06 May 2025

King County Selects Moose Boats for Hybrid Patrol Boat

The King County Sheriff’s Office Marine Division in Washington has selected Moose Boats to build a new, custom diesel electric hybrid patrol boat.The model M1 will be 46’ long and powered by two Volvo Penta D11-625HP Diesel engines integrated with in-line twin Dan Foss electric motors.The vessel build will be a close collaboration between Hamilton Jet, who has designed the electric propulsion system, Volvo Penta and Moose Boats. Current battery technologies manufactured by Corvis Battery will enable the vessel to run solely under electric propulsion for up to two hours at five knots.

07 Apr 2025

Nichols Brothers to Build Hybrid San Francisco Bay Ferries

Source: NBBB

Ice Floe, LLC, doing business as Nichols Brothers Boat Builders (NBBB), has been awarded a contract by San Francisco Bay Ferry to design and construct two 400-passenger battery-electric ferries as part of the agency’s Rapid Electric Emission Free (REEF) Ferry Program.The 142’-1” x 34’-9” Subchapter K vessels will operate at 25 knots, serving central bay routes that seamlessly connect Oakland and Alameda to San Francisco.They will significantly reduce emissions in the San Francisco Bay Area.NBBB will be collaborating with vessel designer Incat Crowther…

16 Mar 2025

Grimaldi Takes Delivery of Hybrid Short-Sea Ro-Ro

Source: Grimaldi Group

Shipyard Jinling in Nanjing (China) has delivered the Eco Napoli, the last of 14 ships in the Grimaldi Green 5th Generation (GG5G) class, which includes the world’s largest and most eco-friendly ro-ro vessels for short-sea shipping.The Italian-flagged Eco Napoli has a length of 238 meters, a beam of 34 meters, a gross tonnage of 67,311 tonnes and a service speed of 20.8 knots.Compared to the company’s previous ro-ro series, the new ship can accommodate double the load on its seven decks (two of which are hoistable).

13 Mar 2025

e1 Marine's Vision for Methanol-to-Hydrogen Vessel Tech

The marine industry at large slowly evolves on fuel transition, as the questions on regulation, technology and finance of emerging technologies cumulatively works to stunt growth. Enter Dave Lee, Executive Director,  e1 Marine. Dave Lee is certainly no stranger to advanced marine technology, as he also serves as VP of Innovation and Technology @ Maritime Partners, and held a similar position previously with ABB. Read aoub the e1 Marine plan to effectively enable hydrogen as a marine fuel…