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Wartsila: Cruise ships herald the age of LNG fuel

This year will see the first LNG-fuelled cruise ships come into service, and there are many more on order.

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The following ‘Cruise ships herald the age of LNG fuel’ article was first published on the Wärtsilä magazine Twentyfour 7 in May 2019:

This year will see the first LNG-fuelled cruise ships come into service, and there are many more on order. Find out how Wärtsilä LNG solutions are playing a key role in meeting the industry’s high demands for space efficiency, safety and sustainability.

Very few still see LNG as a novelty and there is nothing new about a cruise ship. But until this year the two have never been combined.

This is about to change. In December, Carnival Cruise Line took delivery of AIDAnova, the first LNG-powered cruise ship. It will also put its second LNG vessel, the Costa Smeralda, into operation this summer. There are now about 20 new LNG-fuelled cruise ships on order, with all the major cruise companies – Carnival, MSC, Disney, Royal Caribbean, and TUI – betting big on the technology.

“We are talking about 50% of the normal order book for cruise ships in a year,” says Piero Zoglia, who leads the business development team for Wärtsilä's marine LNG business. “All the players are focusing 50% on LNG fuel.”

The tipping point

Zoglia believes the arrival of cruise operators marks the tipping point for the fuel, as port operators and fuel suppliers will now be forced to extend bunkering facilities in dozens of new ports.

LNG has, in the past, been seen as suitable for ships on repetitive routes in seas with strict emissions controls, and not for vessels like cruise ships, which can be sent to another hemisphere at short notice. But improving bunkering availability, and the arrival of the first global sulphur cap next year, has made the fuel look more attractive. Vessels running on heavy fuel oil now need to install scrubber systems or pay a premium for low sulphur fuel, improving the economics of LNG.

When France's Compagnie du Ponant ordered Le Commandant Charcot, a specialist ship which will take sightseers on luxury expeditions to the North Pole, around Greenland, through the Bering Straits and to the penguin colonies of Antarctica, it opted for Wärtsilä's LNG dual-fuel engines.

“They are sailing in the North Sea and the Baltic Sea and that's a nitrogen oxide emission control area (NECA), so they have two options: low sulphur MDO or LNG,” says Zoglia. “The fuel price is attractive, and you also save on maintenance costs because the engines are running on cleaner fuel.” IMO has committed to developing a ban on HFO, thereby making it no longer a realistic option for new projects in Arctic cruise.

Towards clean alternatives

But economics was not the only or even the main driver. The impacts of climate change are nowhere more visible than at the North and South Pole, where ships will be operating.

Public concern over environmental pollution affects the cruise industry more than any other sector. “They have to be clean. It is not only a matter of the rules and regulations but also a question of image,” explains Zoglia. “They have to go into ports at tourist destinations and in these ports, you don't want to have smoke emissions.”

With LNG there is no smoke at all. Switching from fuel oil to LNG cuts sulphur emissions to zero, particulate emissions by 98%, NOx emissions by 85%, and greenhouse gas emissions by a quarter. It should, therefore, be no surprise that the fuel is attractive.

Tailor-made solutions

The cruise ships currently on order are the first to be fuelled by LNG, meaning companies like Wärtsilä are having to work hard to meet entirely new demands.

“It is very complex, very difficult, with very demanding customers,” says Zoglia. “There's not one project which is like what anyone has done before.”

LNG's lower fuel density means that an LNG vessel typically requires twice as much tank space as one fuelled by diesel. Standard cylindrical tanks compound the problem, as they fill only about 40% of the rectangular space needed to house them.

This is a particular problem for cruise vessels, Zoglia points out: “In a cruise ship, every cubic metre you lose might be a cabin you give away.”

Wärtsilä worked with the French engineering company GTT to develop a membrane tank for the icebreaking cruise ship Le Commandant Charcot, which could be fitted to the shape of the hull. As much as 75% of the space was used for fuel storage. It is a technology which has been used on LNG carriers but never before on a cruise vessel.

Safety first and foremost

On another project, Wärtsilä supplied Bilobe Type C tanks, which use 60% of the available space for gas storage. Again, Wärtsilä is the first to supply this technology to a cruise ship. Because Bilobe tanks are pressure tanks made of stainless steel, they are one of the best technologies from a safety perspective.

Cruise ships have some of the strictest safety standards in the industry, and Wärtsilä has built triple redundancy into the LNG systems it has supplied.

This means having two LNG tank systems working in parallel and ready to take full control in case of a single failure. Even if both fail, the diesel used as pilot fuel in the engines is stored in sufficient quantities, so that the engines can switch to diesel and bring the vessel back to the nearest port.

“For a cruise ship that's particularly important because passengers don’t care if there is a technical problem on board: they have paid for the ticket and the cruise must go on,” says Zoglia. “Safety and reliability are of utmost importance on board these ships. They are the top priorities.”

Every year between now and 2026 (at least) will see new LNG-fuelled cruise ships hit the market, and their operators lobby hard to bring bunkering to all their key ports. At the same time, oil and gas companies will order LNG bunkering ships which will make LNG refuelling much more flexible. 

With the arrival of the cruise giants, it is time to stop talking about LNG's 'chicken-and-egg conundrum'. The fuel has come of age.

Source: Wartsila
Photo credit: Ponant – Stirling Design International
Published: 13 June, 2019

 

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Alternative Fuels

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

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Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Taiwanese shipping firm Yang Ming Marine Transport Corporation (Yang Ming) and South Korean shipbuilder Hanwha Ocean on Wednesday (2 September) signed a shipbuilding contract for six 13,000 TEU class LNG dual-fuel container vessels. 

The contract was signed by Dr. Chuck Tsai, Chairman of Yang Ming, and Mr. Charles Kim, CEO of Hanwha Ocean. The vessels are scheduled for delivery between 2028 and 2029. 

They will complement Yang Ming’s existing fleet of 10,000+ TEU vessels and serve as key vessels on East-West services, with deployment flexibility across trade lanes connecting Asia with the East and West Coasts of North America, South America, and the Mediterranean. 

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

“As Yang Ming transitions toward net-zero emissions, LNG provides a relatively mature and economically viable alternative fuel solution, capable of reducing greenhouse gas emissions by approximately 20%,” the company said. 

“At the same time, ammonia can serve as a carbon-free fuel by utilising converted LNG storage facilities, while offering relatively lower conversion costs and comparatively well-developed supply chains and infrastructure. The Ammonia Fuel Ready design will therefore provide Yang Ming with greater flexibility in responding to increasingly stringent international regulations on greenhouse gas emissions.”

In addition, the vessels will be equipped with Type B LNG fuel tanks with a design pressure of 1.0 bar to enhance the safety and efficiency of LNG operations, together with a range of energy-saving technologies, including Wind Shields, Rudder Bulbs, Pre-Swirl Stators, and Shore Power Systems. Smart ship technologies and cybersecurity protection features will also be incorporated to enhance operational efficiency, safety, and reliability while effectively reducing fuel consumption and greenhouse gas emissions.

Deliveries under Yang Ming’s next-generation fleet optimization plan commenced earlier this year. By 2030, a total of 24 new vessels are expected to enter service. 

This includes 18 LNG dual-fuel vessels—comprising five 15,500 TEU, seven 16,000 TEU, and the six 13,000 TEU vessels under this contract—alongside six 8,000 TEU methanol dual-fuel-ready ships. 

 

Photo credit: Yang Ming Marine Transport
Published: 4 September, 2026

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Alternative Fuels

LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Both secured AiP for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Lloyd’s Register (LR) and the Marine Design and Research Institute of China (MARIC) on Thursday (3 September) have secured Approval in Principle (AiP) for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Announced at SMM 2026, the concept addresses one of the biggest investment challenges facing shipping today: the need to develop vessels and capabilities that can support a range of alternative fuel options and pathways as technologies, infrastructure and regulations evolve.

While LNG is already a mature fuel pathway, methanol and ammonia remain at an earlier stage of development, with questions around global fuel availability, infrastructure development, economics and long-term adoption.

The 114,000 DWT tanker concept has been designed as a product and crude oil carrier that can accommodate future conversion to LNG, methanol or ammonia as technologies, regulations and fuel supply chains mature. By incorporating conversion readiness at the design stage, the concept aims to reduce future retrofit complexity and provide owners with greater confidence when planning long-term fleet investments.

The design concept was reviewed against LR’s July 2026 class rules and regulations, including requirements relating to ships using gases and other low-flashpoint fuels, alongside relevant IACS Common Structural Rules for oil tankers. Final classification and statutory approval remain subject to full compliance with all applicable rules and regulations.

Theo Kourmpelis, Global Business Director for Tankers, Lloyd’s Register, said: “Shipowners are being asked to make major investment decisions today despite continued uncertainty around which fuels will dominate in the decades ahead. Alternative fuel solutions each offer potential pathways to compliance, but fuel infrastructure, regulation and economics continue to evolve at different speeds around the world.

“Designs that preserve flexibility will be critical in helping owners manage risk while preparing for multiple future scenarios.”

Si Nan, Marine & Offshore Marketing Department Vice Director, MARIC, said: “As the industry explores different decarbonisation pathways, shipowners need vessel designs that can adapt alongside technological and regulatory developments. This concept was developed specifically to provide greater fuel flexibility and long-term resilience, allowing owners to respond to changing market requirements without being locked into a single fuel strategy.

“Receiving Approval in Principle from Lloyd’s Register is an important milestone that validates the design concept and supports its future development.”

 

Photo credit: Lloyd’s Register
Published: 4 September, 2026

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Alternative Fuels

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

LNG-fuelled vessels accounted for the vast majority of August activity while the strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year.

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DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

Latest data from classification society DNV’s Alternative Fuels Insight (AFI) platform alternative-fuelled vessel ordering was strong in August, with 52 new vessels added to the platform.

This is the highest monthly total since October 2024 and follows another active month in July, when 47 vessels were added to the database.

LNG-fuelled vessels accounted for the vast majority of August activity, with 46 orders recorded. The container segment led the way with 30 orders, while the car carrier segment contributed a further 12 LNG-fuelled vessels. In addition, four ethanol-fuelled bulk carriers and two hydrogen-powered bulk carriers were added during the month, as well as one LNG bunker vessel.

The strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year. In total, 242 alternative-fuelled vessel orders have been placed in the first eight months of 2026, representing a 27% increase compared with the same period in 2025.

LNG remains the dominant fuel choice, accounting for 63% of all alternative-fuelled vessel orders registered so far this year. Container vessels represent the largest share of these LNG orders (59%), followed by car carriers (30%).

Jason Stefanatos, Global Decarbonization Director at DNV Maritime, said: “The past two months have been particularly strong for alternative-fuelled vessel ordering, with August recording the highest monthly total we’ve seen since October 2024. This has helped lift year-to-date orders to a level well above the same period last year.

“LNG remains the leading fuel choice, driven largely by activity in the container and car carrier segments. These sectors have been among the earliest adopters of alternative fuels, supported by predictable liner operations and increasing demand from cargo owners to reduce emissions across supply chains. 

“For many owners, LNG offers a combination of emissions reductions, fuel availability and future flexibility while the longer-term fuel landscape continues to evolve. 

“At the same time, the latest figures include orders for ethanol- and hydrogen-fuelled vessels, highlighting that owners continue to explore a range of decarbonization pathways. Different segments are making different fuel choices, but the overall level of activity demonstrates continued investment in lower-emission shipping.”

Screenshot 2026 09 04 at 12.29.26 PM Screenshot 2026 09 04 at 12.29.36 PM

 

Photo credit: DNV
Published: 4 September, 2026

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