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DNV on decarbonizing ferries: Technological innovation and electrification

Recent technological innovations in the ferry industry have focused on electrification and battery power; DNV presents three key technologies driving the decarbonization of ferries.

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DNV on decarbonizing ferries: Technological innovation and electrification

Classification society DNV on Thursday (16 November) released a Maritime Impact report on the decarbonization of ferries. The following is excerpts from the article: 

As shipping examines a range of options to reduce greenhouse gas emissions, recent technological innovations in the ferry industry have focused on electrification and battery power. DNV presents three key technologies driving the decarbonization of ferries.

With IMO decarbonization targets becoming more ambitious, and social and political pressure building, each sector of the maritime industry needs to examine the most practical and cost-efficient ways of reducing greenhouse gas emissions. For ferries, electrification and battery power are high on the agenda.

Electrification and battery power perfect fit for ferries

“Ferries are the perfect segment for electrification and battery power,” says Hans Eivind Siewers, Segment Director of Passenger Ships and RoRo at DNV. “Short, regular routes between the same ports makes it easier to charge regularly and reduces the need for large batteries.”

Three new technologies have emerged in recent years which are expected to have an impact on the ferries market. For all, the development has been facilitated by recent technological developments, most notably improvements in the energy density of batteries. Two of these innovations are based on hydrofoiling, an established technology which is making a comeback due to energy efficiency gains.

Hydrofoiling: Back to the future with Fast Foil Ferry

Hydrofoil technology – where a foil lifts the vessel up from the water as it gathers speed – was popular in the 1970s due to passenger comfort and high speeds, but this was eventually sidelined due to poor fuel and energy consumption. However, over the past few years, advancements in high strength and lightweight composite materials, gains in hydrofoiling technology and – most importantly – increases in the energy density of batteries have reopened the door to this technology.

Collaborative innovation: Developing a fully electric Fast Foil Ferry

In 2020, Kitsap Transit (a public transit agency serving Kitsap County, Washington, part of the Seattle metropolitan area), Foil Ferry LLC (a collaboration between Anacortes-based Bieker Boats and Seattle naval architecture firm Glosten) and Washington Maritime Blue received a Federal Transit Administration innovation grant to develop a proof-of-concept design for a fully electric Fast Foil Ferry. This has led to the delivery of a preliminary design for a high-speed hydrofoil passenger ferry, aided by DNV-led studies around shoreside infrastructure and permitting requirements and economic and environmental impacts.

Decarbonization just one advantage of Fast Foil Ferry

“These ferries use around one-third of the energy of conventional fast ferries and have zero local emissions,” says Cassidy Fisher, Programme Director of Washington Maritime Blue, which is coordinating the Fast Foil Ferry project. “They produce negligible waves as the hulls fly above the water’s surface. This is important for protecting sensitive shorelines such as those along Rich Passage, Washington, which makes up a significant portion of the Bremerton–Seattle route.”

With a cruising speed of 30 knots (around 55 km/h), the ferries have a range of about 30 nautical miles. This means they will be able to complete one full round trip on the proposed Bremerton to Seattle commuter route without recharging.

Financial benefits make the business case for Fast Foil Ferry

Besides the extensive list of advantages, including reduced motion compared to non-foiling hulls, providing passengers with a more comfortable ride, reduced noise, and the hope that increased ferry traffic will result in fewer cars on the roads of Washington State, the Fast Foil Ferry will also deliver significant savings to its operators.

“We have estimated a 35% reduction in annual operating costs compared to conventional diesel-powered ferries, mainly due to energy savings, although this depends on the price of diesel,” continues Fisher. “Alongside the decarbonization benefits, this is a strong business case and removes any significant barriers to further development.”

The project is aiming to secure another USD 4 million in federal funding so it can advance and complete the design development stage, while full-scale trials, construction and deployment, and the development of shoreside infrastructure will require another USD 18 million in funding.

From LNG to battery power

In Uruguay, ferry operator Buquebus is preparing to start operating the largest battery-powered ship in the world. Currently under construction at Tasmania-based shipbuilder Incat, the 130-metre ship will have a battery capacity of over 40 MWh, almost four times the capacity of any battery-powered vessel constructed before.

Following the success of the DNV-classed HSC Francisco Papa, Incat’s first LNG vessel delivered to Buquebus in 2013, the new DNV-classed vessel was originally planned to run on LNG. This was switched to electric/battery propulsion after Robert Clifford, founder of Incat, showed Buquebus his plans for a new electric/battery-powered ship.

“Our President Mr. Lopez Mena asked Incat if it was possible to use the electric propulsion on our future vessel,” explains Gerardo Babini, Technical Manager, Buquebus. “After a couple of weeks of weight and speed calculations, Incat came back to us and said it would be possible.”

The future of ferries is battery-powered

While the Buquebus ferry is very different in design to the two hydrofoil vessels, all of these technologies showcase the key role that electrical/battery power can play in the decarbonization of shipping. This is likely to increase, particularly in the ferry industry, as battery technology develops even further.

“These technologies are all extremely exciting and impressive, but we can expect so much more from battery power over the next ten years,” says Hans Eivind Siewers. “Improvements in density will extend ranges, opening up longer routes and reducing the reliance on scarce carbon-neutral fuels. This will contribute greatly to shipping’s quest to reach net-zero by 2050.

Note: DNV’s full Maritime Impact report on ‘Decarbonizing ferries: Technological innovation and electrification’ can be found here.

Photo credit: DNV / Incat Tasmania 
Published: 24 November, 2023

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Alternative Fuels

MPA gives notice on testing of Singapore’s first electric cargo vessel “Hydromover”

Testing of smart navigational systems on board the craft, “Hydromover” will be carried out in an area north of Selat Sinki from 15 February to 30 March.

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Goal Zero Consortium launches Singapore’s first electric cargo vessel Hydromover

The Maritime and Port Authority of Singapore (MPA) on Friday (14 February) issued Port Marine Notice No. 13 of 2025 to notify the maritime community on the testing of Singapore’s first electric cargo vessel Hydromover in an area north of Selat Sinki :

TESTING OF SMART NAVIGATIONAL SYSTEMS ON THE CRAFT “HYDROMOVER” NORTH OF SELAT SINKI

Date : With effect from 15 Feb 2025 to 30 Mar 2025.

Location : North of Selat Sinki, within the test area bounded by the following co-ordinates (see attached chartlet):

MPA gives notice on testing of Singapore’s first electric cargo vessel “Hydromover”

Working Hours : During daylight hours, daily including Sundays and Public Holidays.

MPA gives notice on testing of Singapore’s first electric cargo vessel “Hydromover”

Details : Testing of smart navigational systems on board the craft, Hydromover will be carried out in an area north of Selat Sinki. A target vessel will be manoeuvring around the Hydromover as part of the testing. A safety boat will be deployed to warn vessels navigating in the vicinity of the test area.

Further enquires relating to the project can be directed to:

Mr. Lew JiaHui, Project Manager,
Tel: +65 9049 3474, email: [email protected] 

Or

Mr. Matthew Tseng, Projects, VP,
Tel: +65 8299 7776, email: [email protected] 

`Caution : When in the vicinity of the test area, mariners are reminded to:

  • Keep well clear and not to enter the test area;
  • Maintain a proper lookout;
  • Proceed at a safe speed and navigate with caution;
  • Maintain a listening watch on VHF Channel 68 (West Control and Sinki Control); and Communicate with West Control or Sinki Control for assistance, if required.

Please call Capt. Faroque Hossain Sikder at Tel: 6325 2472 or Marine Safety Control Centre (MSCC) Duty Officer Tel: 6325 2488/89 for clarification on this Port Marine Notice.

Note: The chartlet of the test area can be found here.

Manifold Times previously reported green technology solutions provider Yinson GreenTech (YG) together with Goal Zero Consortium (Goal Zero) led by SeaTech Solutions (SeaTech) officially launching the Hydromover, marking a critical milestone in the decarbonisation of Singapore’s maritime industry.

The vessel is designed with swappable battery solutions and can carry up to 25 tonnes of cargo.

Related: Goal Zero Consortium launches Singapore’s first electric cargo vessel Hydromover
Related: Yinson GreenTech commences construction of all-electric cargo vessel “Hydromover”
Related: Yinson GreenTech all-electric crew transfer vessel to undergo sea trials in Singapore

 

Photo credit: Yinson GreenTech
Published: 17 February, 2025

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Alternative Fuels

South Korea to invest USD 154 million into construction of environment-friendly ships

Government, local governments, and public institutions plan to invest approximately KRW 222.3 billion (USD 154 million) to support the building or conversion of 81 environment-friendly ships.

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RESIZED Lauren Seo on Unsplash

The Ministry of Oceans and Fisheries (MOF) Tuesday (11 February) announced that it has prepared the 2025 Implementation Plan for Environment-Friendly Ship Distribution in accordance with the first Master Plan for Environment-Friendly Ship Development and Distribution (2021-2030).

The government enacted the Act on the Promotion of Development and Distribution of Environment-Friendly Ships in December 2018 to mandate the public sector to build environment-friendly ships and provide the private sector with a legal basis to reduce acquisition taxes and provide subsidies when converting into environment-friendly ships. 

As a result, 199 ships were converted into environment-friendly ships as of last year.

This year, the government, local governments, and public institutions plan to invest approximately KRW 222.3 billion (USD 154 million) to support the building or conversion of 81 environment-friendly ships.

The public sector plans to build a total of 34 environment-friendly vessels, including electric-powered or hybrid ships, to reduce greenhouse gas emissions. Additionally, 15 operating ships will be equipped with diesel particulate filters (DPF) to reduce fine dust emissions.

In the private sector, support will be provided for building 20 ships in keeping with the demand for transitioning to environment-friendly vessels. Financial assistance such as secondary financing will continue to be offered as well for 12 vessels for installing environment-friendly equipment.

Meanwhile, applications for the 2025 First Phase of the Certified Environment-Friendly Vessel Supply Support Project will be accepted from 31  January 31 to 27 March to support the construction of environment-friendly vessels by small and medium-sized coastal shipping companies operating in domestic ports.

Eligible applicants include coastal shipping companies that order certified environment-friendly vessels such as electric-powered or liquefied natural gas (LNG)-fuelled ships. Selected applicants can receive subsidies of up to 30% of the ship's construction cost depending on the certification grade and vessel construction expenses.

“We will make generous investments in small and medium-sized shipping companies to convert into environment-friendly ships, drastically reduce greenhouse gases in the shipping industry, and proactively respond to strengthening international decarbonization regulations,” Minister Kang Do-hyung said.

 

Photo credit: Lauren Seo on Unsplash
Published: 14 February, 2025

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Shipping Corridor

Clear plan developed for Stockholm-Turku green shipping corridor

After a year of cooperation, Viking Line, Port of Turku and Ports of Stockholm said they have now laid a solid foundation for the green corridor project and developed a clear plan for a common way forward.

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Clear plan developed for Stockholm-Turku green shipping corridor

Viking Line, Port of Turku and Ports of Stockholm on Thursday (6 February) said they have now laid a solid foundation for a green shipping corridor project and developed a clear plan for a common way forward.

This comes after working together for a year on the project which aims to establish a green, fossil-free shipping corridor between Stockholm and Turku. 

On the anniversary on 6 February, the parties and a large number of invited stakeholders gathered for an open seminar in Turku, Finland. Results, experiences, challenges and opportunities were discussed based on the common goal of establishing a green maritime corridor between Stockholm and Turku by 2035.

Magdalena Bosson, CEO Ports of Stockholm, said: “We are very pleased with the cooperation and the work done during the first year.”

“We have been investing in onshore power supply infrastructure for ships for many years and Viking Line is one of the pioneers. Now we are further sharpening our goals together with the other parties to establish a fossil-free shipping corridor between Stockholm and Turku.”

Jan Hanses, CEO Viking Line, said: “We are proud to be part of this important co-operation project for a cleaner Baltic Sea. Our most significant investment so far is to offer all our passengers and freight customers biofuel for transport between Stockholm and Turku, reducing emissions for their journeys by 90%.”

“In addition, a possible battery installation and Elogrids, which reduces energy consumption, are important elements of our work in the coming years.”

Elogrids is a grid system installed on the ship's hull to reduce resistance and improve fuel efficiency. It optimises water flow and reduces turbulence, resulting in lower energy consumption.

Erik Söderholm, CEO Port of Turku, said: “A green shipping corridor gives us the opportunity to promote sustainable development and reduce the environmental impact of shipping.”

“During the past year, we have started more detailed planning of measures related to the green shipping corridor, such as updating our carbon footprint calculation and preparing for the development of charging stations for heavy traffic.”

During the first year, the parties have identified and prioritised the most important goals and measures to reduce carbon dioxide emissions in shipping. 

A clear project plan with activities has been developed, including:

Viking Line

  • Pre-study of battery installation on Viking Grace and Viking Glory
  • Installing Elogrids on the vessels
  • Increase sales of biogas supplements for transport between Stockholm and Turku

Port of Turku

  • Study and pilot project for onshore power supply at the quay
  • Zero emissions from Viking Line vessels at berth
  • Guidelines and incentives for port operators for zero emissions
  • In collaboration with external actors, develop concepts that link the green shipping corridor with sustainable transport from and to the port on land
  • Opportunity for shipping companies to bunker sustainable fuels

Ports of Stockholm

  • Zero emissions from Viking Line vessels at the quayside
  • In collaboration with external actors, develop concepts that link the green shipping corridor with sustainable transport from and to the port on land
  • Opportunity for shipping companies to bunker fossil-free fuels

 

Photo credit: Ports of Stockholm
Published: 7 February, 2025

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