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DNV GL: Green technologies enhance efficiency of shuttle tankers

LNG dual-fuel shuttle tankers demonstrate environmental sustainability and operational flexibility are commercially viable.

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Christening ceremony of Eagle Blane and Eagle Balder

Classification society DNV GL has published an article analysing and outlining how technology can meet environmental targets while boosting the efficiency of shuttle tankers; the article is written by Business Director Tankers, Catrine Vestereng.

AET, one of the leading petroleum tanker owners and operators, has a long tradition of naming its vessels after some of the greatest energy locales, cities or ports in the world. Their latest two dynamic positioning shuttle tankers (DPSTs) will join the “B” ship series and are named after the Eagle Blane and Eagle Balder oil and gas fields on the Norwegian continental shelf.

Meeting international emission regulations

Eagle Blane and Eagle Balder not only continue AET’s naming tradition but also underline the company’s commitment to preserving the environment through state-of-the-art green technology, expanding AET’s fleet of environmentally friendly ships.

The twin-skeg, 123,100 dwt sister vessels will emit 85% less SOx, 98% less NOx, 98% less particulate matter and 93% less black carbon particulates than ships burning conventional fuel. They meet the International Maritime Organization’s (IMO) target to reduce carbon intensity per transport of work by 40% against 2008 baselines by 2030, and halving CO2 emissions by 2050.

The vessels will serve the Norwegian energy company Equinor on long-term charter in oilfields on the Norwegian continental shelf on the North Sea, the Norwegian Sea and the southern Barents Sea, as well as on the UK continental shelf.

“These trading areas not only require compliance with the Global Sulphur Cap but also with the new Gothenburg Protocol in force from 2020, which requires volatile organic compound (VOC) emissions to be capped at 131,000 tons per year,” explains John Baptist, Global Director VLCC & Shuttle Tankers, Crude Shipping at AET.

A new prototype

Powered by liquefied natural gas (LNG) as primary fuel, the DPSTs will be able to capture 100% of the harmful VOCs which escape into the air from crude oil cargoes during loading and voyage. The captured VOCs will be used as a supplementary fuel. “These are AET’s first vessels constructed with a VOC recovery system and fuelled by LNG. Being prototype vessels of this type, there were risks. The design and newbuilding teams have worked with all stakeholders to produce a very environment-friendly vessel type,” summarizes John Baptist. “Being part of the VOC reduction initiative makes this project even more exciting.”

Samsung Heavy Industries (SHI) built the shuttle tankers for AET Sea Shuttle AS (AETSS), a joint venture between the Norwegian shipping company ADS Shipping and AET Tankers which is headquartered in Singapore. AETSS is the owner and commercial operator of the vessels. Project management for the newbuilds was provided by MISC Group’s marine services arm Eaglestar and the Norwegian third-party ship management company OSM Maritime. “The shipyard has played an important role during the newbuilding process and maintained an excellent partnership with the classification society, which resulted in high-end technology solutions whilst ensuring regulatory compliance,” Baptist reports. “The collaboration with class in this project was exceptional in terms of the technical review. DNV GL has shown a high degree of technical expertise in defining, analysing and resolving critical design and engineering philosophies to ensure safe operation. For us, our project partners added remarkable value not only to the vessel but also for our company, as it helps us elevate our reputation among the top environment-friendly service providers.” Vidar Dolonen, Regional Manager Korea and Japan at DNV GL – Maritime , said about the project: “With this dual-fuel shuttle tanker project, DNV GL also broke new ground and we collaborated closely with our experts in various disciplines.

Enhanced technologies for more efficient operation

The vessels use a more efficient computer-controlled system for dynamic positioning that keeps them stationary above a specified seabed area while loading oil. The combination of LNG fuel, a powerful VOC recovery system and a more efficient dynamic positioning system enables estimated fuel savings of up to 3,000 tonnes per year compared with conventional DPSTs of the same size.

“These vessels are proof that environmental sustainability and commercial viability can coexist and are also testament to the fact that operational performance does not have to be sacrificed in the pursuit of reducing emissions,” Capt. Rajalingam Subramaniam, AET President & CEO and Chairman of AETSS says. “The goal was always to leverage our combined experience of AET, ADS and SHI to develop vessels that really push the boundaries in what is possible in North Sea dynamic positioning operations, and to prove the value of LNG dual-fuel solutions in the energy shipping segment.”

During the naming ceremony in October 2019, Lady Sponsor Ann-Elisabeth Serck-Hanssen, Senior Vice President for Asset Management in Marketing, Midstream and Processing at Equinor, said: “Taking these vessels on a long-term contract will further enhance our ability to provide safe, efficient and cost-competitive energy to our customers, and we are proud to play our part in what is an important step forward in the development of more sustainable energy shipping solutions.”

Increased operating opportunities

The two DPSTs will each be propelled by two low-pressure dual-fuel two-stroke engines, which meet IMO Tier III emissions requirements in gas mode without any exhaust gas after-treatment required. Designed for harsh operating conditions, the ships are equipped with latest-generation bow-loading systems (BLS) which offer greater connecting angles, extending the operating opportunities in conditions where shuttle tankers would normally struggle to connect. “The new-generation BLS is capable of connecting the loading hose in wave heights up to Hs = 4.5 m and at an entering angle of 110 degrees,” Stein Are Andersen, Sales Manager Offshore Loading Systems, MacGregor, reports.

Asked about future design and technology developments for shuttle tankers, Baptist believes that green energy will be the top item on the agenda, in particular LNG, VOC and hydrogen as fuels, as well as power generation optimization using variable frequency drives (VFD) batteries. Bow-loading system design has been improving and will continue to evolve to achieve more efficient offshore loading operations. “The demand for shuttle tankers as replacements of ageing tonnage is increasing. In my estimate about 40% of the existing tanker fleet is ready for replacement due to the 20-year age limitation,” Vidar Dolonen points out.

Related: AET names twin LNG dual fuelled DP shuttle tankers at ceremony


Photo credit and source:
DNV GL
Published: 24 February, 2020

 

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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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