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DNV awards AiP for new LNG marine fuel tank insulation with leak detection system

‘The pandemic has been challenging for many companies and for the development of this particular design,’ says Svein Konradsen, COO of PASSER Marine AS.

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Classification society DNV on Tuesday (4 May) granted an Approval In Principle (AIP) to PASSER Marine for the development of a new LNG fuel tank insulation system.

The new concept is designed for prismatic ‘type B’ LNG tanks – which according to IMO rules require a partial secondary barrier – and includes a leakage detection system capable of safely managing and containing fuel leaks.

“The system we have developed is cost-effective and production-friendly,” said Svein Konradsen, COO of PASSER Marine AS.

“The pandemic has been challenging for many companies and for the development of this particular design.

“The required testing has been difficult to finalize due to testing interruptions and limited possibilities to travel, but finally we have been able to submit the necessary documentation which I am very pleased to say was accepted by DNV.”

As LNG fuelled vessels are increasingly being deployed for deep-sea shipping, fuel tank sizes need to increase from 300-1000 m3 fuel capacity to up to 10,000-20,000 m3 which leaves less room for cargo.

As such, there is increased industry interest in alternative fuel tanks – known as ‘type B’ – which are prismatic in shape and more volume efficient than traditional cylindrical ‘type C’ tanks. Between 95 and 99% of LNG fueled ships contain type C fuel tanks, but many newbuilds on order contain ‘type B’ specifications.

“There are several insulation concepts under development that provide an integrated secondary barrier and leakage detection system, but there are few proven systems available on the market,” said Monika Johannessen, DNV Maritime Head of Department, Gas Carrier Excellence Centre.

“We are pleased that PASSER Marine has chosen DNV to pursue verification for this innovative concept and look forward to receiving the documentation for full approval.”

Note: An AiP is widely recognized in the industry as an early phase verification level for new design concepts or for existing designs in new applications. An AiP issued by DNV is an independent assessment of a concept according to an agreed requirement framework within DNV Rules, notations and regulations for which DNV is authorized to carry out third part verification, confirming that a design is feasible and that no major obstacles would prevent the concept from being realised. 

 

Photo credit: PASSER Marine
Published: 5 May, 2021

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Methanol

GENA Solutions: Total renewable and low-carbon methanol project pipeline increases from 61.8 to 62.2 Mt by 2032

Information shared by MI – the Global Methanol Alliance meant to assist the maritime industry in the adoption of methanol as a mainstream marine fuel heading into IMO 2030/2050.

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MI – the Global Methanol Alliance recently shared with Manifold Times the renewable and low-carbon methanol project pipeline August 2026 release produced by GENA Solutions Oy.

Information from the release is meant to provide the bunkering publication’s readers with insight on renewable methanol availability, and to assist the maritime industry in the adoption of methanol as a mainstream marine fuel heading into IMO 2030/2050.

Key takeaways from GENA’s August 2026 Methanol release are as follows:

  • As of the end of August 2026, GENA tracks 286 renewable and low carbon methanol projects, representing 62.2 Mt of capacity by 2032. This includes 25.1 Mt of e-methanol, 25.9 Mt of biomethanol, and 11.2 Mt of low carbon methanol capacity.
  • Two new projects were added to Project Navigator last month, while one frozen project was excluded. The project pipeline increased by 0.4 Mt month on month.
  • Four new offtake agreements were registered during August, including two biomethanol and two e-methanol agreements.
  • About 8% of the cumulative renewable methanol project pipeline capacity has reached FID so far, with another 11% at the FEED stage.
  • Considering the current uncertainty around regulatory developments and demand growth, GENA projects that renewable methanol capacity could reach 6 Mt to 12 Mt by 2031.

Note: The full article can be viewed here.

 

Photo credit: GENA Solutions
Published: 4 September, 2026

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Battery

WK NatPower expands inland shipping electrification drive into Jiangsu

WK NatPower and Jiangsu Port Investment will strengthen collaboration across the maritime, port and clean energy sectors, bringing together expertise in shipping, port infrastructure and electrification technologies.

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WK NatPower expands inland shipping electrification drive into Jiangsu

Wah Kwong NatPower (WK NatPower) on Wednesday (2 September) said it signed a Memorandum of Understanding (MoU) with Jiangsu Port Group Investment Management Co Ltd (Jiangsu Port Investment), a wholly owned subsidiary of Jiangsu Port Group, at the Jiangsu International Maritime Conference in Nanjing. 

The company said the MoU strengthens collaboration across the maritime, port and clean energy sectors, bringing together expertise in shipping, port infrastructure and electrification technologies.

As China’s leading province for inland waterway transport, with the country’s largest inland waterway network, Jiangsu plays a critical role in the nation’s shipping and logistics system. 

“The partnership represents a strategic step in WK NatPower’s China strategy,” the company said in a statement. 

Building on the momentum of its Zhejiang projects, WK NatPower is extending its footprint further into one of the country’s most significant inland shipping areas. By leveraging the strengths of their respective parent companies, Jiangsu Port Group, Wah Kwong Maritime Transport and NatPower, the parties will also establish a cooperation mechanism to explore opportunities for deeper collaboration and enhance the complementary use of global maritime and port resources.

From a technological perspective, WK NatPower is evolving from individual charging infrastructure towards integrated energy systems combining charging, battery storage and battery-swapping solutions capable of serving a broader range of operational scenarios. 

By combining the international experience and global network of WK NatPower and its partner NatPower Marine, with Jiangsu Port Group’s local resources and project delivery capabilities, the partnership will promote coordinated regional development. 

It also demonstrates WK NatPower’s commitment to the electrification of China’s inland waterway transport sector.

 

Photo credit: Wah Kwong NatPower
Published: 3 September, 2026

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Alternative Fuels

Hercules Tanker Management’s ‘Ultra-Spec Series’ tanker “Vanessa” begins maiden voyage

Designed for worldwide deployment, the series can transport and supply conventional marine fuels as well as alternative fuels up to B100 and methanol.

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Hercules Tanker Management’s ‘Ultra-Spec Series’ tanker “Vanessa” begins maiden voyage

Hercules Tanker Management (HTM) on Wednesday (2 September) said its latest Ultra-Spec Series of next-generation tankers, Hercules Vanessa, has commenced her maiden voyage.

HTM is the shipping venture launched by John A. Bassadone, founder and CEO of independent marine fuel supplier Peninsula.

The 10-vessel programme forms part of the company’s long-term fleet renewal strategy, replacing ageing tonnage with more efficient vessels while delivering the future-ready capability needed to support the maritime industry’s evolving energy landscape. 

Designed for worldwide deployment, the series can transport and supply conventional marine fuels as well as alternative fuels up to B100 and methanol. 

Hercules Vanessa is also the first in the series to feature MarineLINE, a high-performance cargo tank coating system. 

The vessel is currently en route to Port Louis to take bunkers and provisions before continuing southbound towards Cape Town. It is scheduled to discharge a cargo of biofuel, loaded at Nansha Terminal in China, in Ghent later this year.

“HTM’s Ultra-Spec Series continues to gather momentum as we build a modern fleet capable of supporting cleaner marine fuel supply chains,” the company said. 

Related: Hercules Tanker Management launches ‘Ultra-Spec Series’ bunker tanker “Harriet”

 

Photo credit: Hercules Tanker Management
Published: 3 September, 2026

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