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GTT awarded two AiPs from Bureau Veritas for ammonia membrane tank & ‘1 barg’ tech

First AiP recognizes the Mark III system, without any major design changes, is suitable for the containment of ammonia in LNG as fuel applications.

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GTT (Gaztransport & Technigaz), an engineering firm specialising in containment systems with cryogenic membranes used to transport and store liquefied natural gas (LNG) on Monday (15 February) said it has obtained two Approvals in Principle (AiP) from Bureau Veritas, a leader in testing, inspection and certification.

The first AiP is related to its ‘NH3 Ready’ classification of Mark III membrane tanks. This AiP recognizes that the Mark III system, without any major design changes, is suitable for the subsequent containment of ammonia in LNG as fuel applications.

Over the course of the AIP study, a compatibility assessment with ammonia has been carried out for the primary barrier of Mark III technology and a test campaign has been performed to determine the level of reinforcement of the containment system to take into account the higher density of ammonia compared to LNG.

The second Approval obtained from Bureau Veritas is for the higher design pressure of “1 barg” in LNG as fuel applications, such as large container vessels.

Thanks to an existing alternative design of membrane tanks with specific dome reinforcement, this Approval gives ship-owners more flexibility in all their operations.

The company noted these approvals reaffirm GTT’s ability to offer ship-owners a flexible and future-proof solutions, enabling them to secure their investment with regard to changes in the supply chain and environmental regulation.

“Being “NH3 Ready”, and the alternative “1 barg” design, once again underline the importance of our ability to continuously innovate, in order to provide our customers with even more reliable, performant, safe and flexible technologies,” said Philippe Berterottière, Chairman and CEO of GTT.

“GTT targets bringing increased flexibility to ship-owners required to adapt as well and as quickly as possible to an ever changing fuel world.

“While we are convinced that LNG is the solution of choice for cleaning-up ship emissions even further, we have to take into consideration that ammonia, coming from green hydrogen, could bring additional reductions in emissions. In offering ammonia compatibility, we open the perspective to owners of a much longer period for ship amortization.”

“Bureau Veritas is helping the industry prepare for the future fuel landscape. It is therefore exciting to support GTT in their continued journey of innovation,” added Matthieu de Tugny, President, Bureau Veritas Marine & Offshore.

“Our role is to help the industry understand – and address – both risk and opportunity as we look for energy transition solutions. It is a pleasure to be awarding this first approval for an ammonia membrane containment tank system, based on the tried and trusted Mark III technology, to GTT.”

Related: Bureau Veritas awards AiP to GTT Ultra Large Container Vessel LNG fuel tank
Related: Korea Fair Trade Commission fines GTT EUR 9.5 million over competition law violation
Related: GTT: LNG as fuel segment orderbook at 17 units; royalty income up 12.1% on year in 9M 2020


Photo credit: GTT

Published: 17 February, 2021

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LNG Bunkering

Singapore: FueLNG achieves 800th LNG bunkering operation milestone

Bunker tanker “FUELNG Venosa” delivered LNG marine fuel to bulk carrier “MV Ubuntu Humanity” at Eastern Bunkering A Anchorage (AEBA) on 11 July.

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Singapore: FueLNG completes 800th LNG bunkering operation

Singapore’s licensed LNG bunker supplier FueLNG on Friday (17 July) announced the successful completion of its 800th LNG bunkering operation in the republic.

The company said bunker tanker FUELNG Venosa delivered LNG marine fuel to bulk carrier MV Ubuntu Humanity at Eastern Bunkering A Anchorage (AEBA) on 11 July. 

“This achievement is more than just a number,” FueLNG said.

“It reflects the trust our customers place in us, the dedication of our operations team, the professionalism of our marine partners, and our unwavering commitment to safe, efficient, and reliable bunker deliveries.” 

Manifold Times previously reported FueLNG completing its 500th LNG ship-to-ship (STS) bunkering operation.

Related: Singapore: FueLNG achieves milestone of 500th STS LNG bunkering operation

 

Photo credit: FueLNG
Published: 20 July, 2026

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Methanol

Western Baltic Engineering unveils green methanol bunkering vessel design for Klaipėda

Designed for flexible operations in shallow waters and local bunkering routes, the concept features an 800-metric-tonne green methanol capacity and the potential to supply up to 250,000 mt annually.

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Western Baltic Engineering unveils green methanol bunkering vessel design for Klaipėda

Ship design and engineering service provider Western Baltic Engineering on Thursday (16 July) showcased its latest concept design for a green methanol bunkering vessel, developed for the operational needs of the Port of Klaipėda.

Designed for flexible operations in shallow waters and local bunkering routes, the concept features an 800-metric-tonne green methanol capacity and the potential to supply up to 250,000 metric tonnes (mt) annually. 

“It is Western Baltic Engineering’s first concept dedicated exclusively to green methanol bunkering, expanding our portfolio of alternative-fuel vessel solutions,” the company said in a social media post.

“Building on our experience in methanol-ready vessel design, it reflects our continued focus on enabling the industry’s transition to cleaner fuels.”

“As the maritime sector evolves, engineering companies have a responsibility not only to respond to market needs but also to anticipate future challenges,” said Marius Arkusauskas, Director at Western Baltic Engineering.

“By exploring emerging technologies and alternative fuel applications, we help our partners prepare for the next generation of maritime operations while contributing to a more sustainable future.”

 

Photo credit: Western Baltic Engineering
Published: 20 July, 2026

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Alternative Fuels

Repsol and Maersk wrap up first bioethanol bunkering operation in Port of Barcelona

Repsol supplied 2,800 mt of bioethanol to a Maersk container vessel, “Antonia Maersk”, in the first bunkering operation of its kind in the Port of Barcelona and one of the first in the Mediterranean.

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Repsol and Maersk wrap up first bioethanol bunkering operation in Port of Barcelona

Spanish energy company Repsol and shipping giant A.P. Moller – Maersk (Maersk) completed the first bioethanol bunkering operation in the Port of Barcelona, according to the port authority on Wednesday (15 July). 

Repsol successfully supplied 2,800 metric tonnes (mt) of bioethanol to a Maersk container vessel, Antonia Maersk, in the first bunkering operation of its kind in the Port of Barcelona and one of the first in the Mediterranean. 

The operation demonstrates growing demand for alcohol-based marine fuels, as well as the readiness of the infrastructure, logistics, and operational capabilities required to support their deployment at commercial scale. 

Juan Abascal, Repsol’s Executive Managing Director of Industrial Transformation and Circular Economy, said: “With this supply, we reaffirm our commitment to the decarbonization of maritime transport through solutions that are available today and ready to scale in the future. 

“At Repsol, we provide shipping companies with a reliable supply chain and a multi-energy strategy that combines different renewable fuels to support the sector in a safe, competitive, and sustainable transition.”

The supply took place in the Port of Barcelona under fully commercial conditions, bringing together key players across the maritime value chain and demonstrating how collaboration can accelerate the adoption of lower-emission solutions in shipping. 

The delivery was carried out by Bahía Candela, Repsol’s newest bunker vessel, operated by Mureloil and designed to supply both conventional marine fuels and next-generation energy products. 

During the bunkering operation, Bahía Candela operated using its battery system, enabling the fuel transfer to be completed with zero local emissions, and further reducing the environmental footprint of the operation. 

Prior to the bunkering, Maersk tested ethanol on one of its smaller vessels, the 1,800 TEU feeder vessel Laura Maersk, which in 2023 became the world’s first dual-fuel container vessel able to operate on methanol. Today, Maersk has 23 dual-fuel container vessels designed to operate on methanol; however, the company continues to explore ethanol as an alternative fuel for its methanol-enabled vessels. Laura Maersk has performed sailings on 100% ethanol as well as blends of ethanol and methanol. 

Emma Mazhari, Vice President Energy Markets at Maersk, said: “Following the successful ethanol trials conducted on Laura Maersk, this latest bunkering of Antonia Maersk marks another important step in our efforts to explore scalable low-emission fuel solutions. 

“As the first ethanol trial on one of our large dual-fuel vessels, with a capacity of 16,000 TEU, it allows us to deepen our understanding of ethanol’s operational potential at scale. 

“Building on the experience we have gained with methanol, we are working closely with port authorities and industry partners to develop the infrastructure and procedures needed to support ethanol bunkering. Ethanol is one of several pathways we are pursuing to diversify our future fuel portfolio and help accelerate the development of new, viable liquid marine fuel markets.”

 

Photo credit: Port of Barcelona
Published: 20 July, 2026

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