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GCMD presents key learnings from ammonia STS transfer trial at Pilbara, Australia

Findings share operational recommendations for both bunker tankers and receiving vessels for ammonia bunkering operations.

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GCMD path to zero carbon shipping

The Global Centre for Maritime Decarbonisation (GCMD) on Friday (13 June) launched its Path to Zero-Carbon Shipping – Insights from ammonia transfer trial in the Pilbara report.

The document captures key learnings from a pilot involving the ship-to-ship transfer of liquid ammonia between two gas carriers — the Green Pioneer and the Navigator Global — at anchorage off Port Dampier in the Pilbara, Western Australia.

The trial demonstrated that ship-to-ship ammonia transfer at anchorage can be both safe and practicable, provided that recommended safeguards and operational controls are implemented.

To share these crucial learnings with the industry, the report offers quantitative insights from executing the trial, forming a reference for future pilots and eventual commercial-scale operations.

The report offers:

Project background and objectives: An overview of the trial’s goals and operational context

Detailed safety studies covering four key areas:

  • Feasibility: Response motions and mooring analysis
  • Risks: HAZID and HAZOP findings and mitigations
  • Consequences: Computational Fluid Dynamics (CFD) plume dispersion modelling
  • Response: Emergency Response measures and protocols

Operation execution overview: A detailed account of the actual transfer operation, including the Joint Plan of Operations (JPO), assets deployed and a timeline of key events.

Optimising ammonia bunkering: Operational recommendations for both bunker tankers and receiving vessels, covering aspects such as transfer system setup, manifold arrangement, sample collection and more. A checklist of ERP resources required onboard is also included.

“In the past, bunkering guidelines took years to develop and were typically derived from experience with actual operations,” said Professor Lynn Loo, CEO of GCMD.

“In this case, guideline development is preceding actual commercial-scale operations, making it all the more important that these trials are as informative and comprehensive as possible so they can serve as a relevant reference for industry bodies in refining safe handling procedures, emergency response plans, and operational guidelines.”

Note: The full report of Path to Zero-Carbon Shipping – Insights from ammonia transfer trial in the Pilbara can be downloaded here.

 

Photo credit: Global Centre for Maritime Decarbonisation
Published: 16 June 2025

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Nuclear

Core Power and Port of Corpus Christi to explore maritime nuclear readiness

Study at the port will examine opportunities for firm, reliable power from floating nuclear power plants and readiness for future calls by nuclear-powered commercial ships.

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Core Power and Port of Corpus Christi to explore maritime nuclear readiness

UK-based firm Core Power on Wednesday (19 August) said it has signed a Memorandum of Collaboration with the Port of Corpus Christi Authority (PCCA), establishing a framework for a site-specific maritime nuclear readiness study at the Port of Corpus Christi. 

The study will examine how a major US energy and trade gateway could prepare for two additional distinct future roles: as a potential location for a floating nuclear power plant (FNPP) supplying firm power for port and regional demand, and as a gateway for future calls by nuclear-powered commercial ships.

For the Port, the work is intended to provide a practical evidence base for considering how future ship-based power and shipping technologies could support regional growth, energy resilience and long-term competitiveness. 

For Core Power, the study will build out the practical requirements of its two product pathways in a real port operating environment. FNPPs require suitable sites, grid connections, customers, regulatory and environmental pathways, operating arrangements and long-term service support. Nuclear-powered commercial ships require safe and predictable pathways for transit, berthing and routine port operations. 

“The Port of Corpus Christi provides an opportunity to assess both pathways separately while understanding the shared infrastructure, safety, regulatory and commercial questions around them,” the company said. 

Separately, PCCA Commissioners have agreed to execute a Memorandum of Cooperation with the U.S. Department of Transportation’s Maritime Administration to examine the technical, regulatory and operational requirements for U.S. seaports to support the potential deployment of floating nuclear power plants and provide safe harbour for civil nuclear-powered vessels. 

The agreement recognises PCCA’s work with Core Power to assess the feasibility of both pathways. 

“Taken together, these separate but complementary agreements represent an important step toward translating maritime nuclear technology into practical readiness requirements for US ports,” Core Power said. 

Jeff Pollack, Chief Strategy and Innovation Officer of the Port of Corpus Christi Authority, said: “Port Corpus Christi, as the preeminent energy gateway in North America, is committed to remaining a leader in the global energy marketplace, even as that marketplace expands and evolves. 

“This collaboration will help us understand what would be required technically, environmentally, operationally and commercially for floating nuclear power plants and future calls by nuclear-powered commercial ships to be considered in the real-world context of the Port. It is about gathering evidence and keeping our region competitive for future investment, industry, and high-value jobs.”

Related: Port of Corpus Christi ink agreement to explore nuclear maritime technologies

 

Photo credit: Core Power
Published: 21 August, 2026

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Biofuel

MESD study finds existing Singapore harbour craft ready for B100 bio bunker fuel adoption

Results demonstrate the qualified readiness of existing large harbour craft in Singapore for B100 adoption, provided that appropriate fuel-handling, storage and additive practices are implemented.

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MESD study finds existing Singapore harbour craft ready for B100 bio bunker fuel adoption

Singapore’s Maritime Energy & Sustainable Development Centre of Excellence (MESD) on Wednesday (5 August) said the findings of its latest study indicate that existing large harbour craft in Singapore are ready for the adoption of B100 biodiesel, provided appropriate fuel handling, storage and additive practices are in place.

The findings were published in MESD’s public report, Study on the Readiness of Existing Large Harbour Craft for B100 Biodiesel in Singapore.

“Overall, the results demonstrate the qualified readiness of existing large harbour craft in Singapore for B100 adoption, provided that appropriate fuel-handling, storage and additive practices are implemented,” MESD said in a social media post. 

“This represents an important step towards supporting the wider adoption of sustainable marine fuels and advancing Singapore’s maritime decarbonisation journey.”

The study evaluated fuel storage stability, engine performance, emissions and operational readiness through controlled laboratory testing and sea trials involving a tugboat and a bunker tanker.

MESD said the findings are highly encouraging, which include:

  • Stable engine performance was maintained throughout the 200-hour sea trials, with no significant power loss, abnormal fuel-consumption trends or critical operational disruptions.
  • Antioxidant additives improved oxidation stability and helped reduce the risk of fuel degradation during storage.
  • B100 achieved brake thermal efficiency comparable to diesel, while producing lower carbon monoxide and particulate matter emissions, with a modest increase in nitrogen oxide emissions.

Led by the MESD, the study was conducted in collaboration with KST Maritime Pte Ltd, V-Bunkers Tankers, Alpha biofuels, Aderco, Maritec Naias and IHI Power Systems Co Ltd.

The Maritime and Port Authority of Singapore (MPA)​ and the ​Singapore Maritime Institute (SMI)​ also contributed to the study. 

MESD added that further research on long-term engine endurance, fuel stability and material compatibility is ongoing under its FAME 1000 project, with a related public report expected to be released later this year.

Note: The report can be accessed here.

 

Photo credit: Maritime Energy & Sustainable Development Centre of Excellence
Published: 7 August, 2026

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Alternative Fuels

KR, HD Hyundai tap first ammonia dual-fuel sea trial to develop vessel operating standards

Trial generated data on the vessel’s fuel supply system and engine, which will provide a technical foundation for KR’s future development of domestic guidelines for ammonia-fuelled ships.

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KR, HD Hyundai tap first ammonia dual-fuel sea trial to develop vessel operating standards

Korean Register (KR) on Tuesday (14 July) said it is collaborating with HD Hyundai Heavy Industries (HHI) to establish a domestic operating environment for ammonia-fuelled vessels under the Ministry of Oceans and Fisheries’ Green Shipping Corridor Construction Support Project. 

The initiative supports the development of ammonia as one of the most promising next-generation marine fuels.

HHI recently conducted a sea trial of Korea’s first ammonia dual-fuel propulsion vessel. The trial generated operational data on the vessel’s fuel supply system and engine, which will provide a valuable technical foundation for KR’s future development of domestic guidelines for environmentally friendly vessel operations and supporting wider maritime decarbonisation efforts.

A spokesperson for HD Hyundai, said: “Drawing on our group’s R&D capabilities and on-site technical expertise, we have made meaningful progress in advancing the application of ammonia as a marine fuel. We expect this to help enhance a sustainable maritime ecosystem while strengthening the competitiveness of Korea’s shipbuilding industry.”

Kim Daeheon, Executive Vice President of KR’s R&D Division, added: “The close collaboration between KR and HD Hyundai has enabled us to build the technical foundation for introducing ammonia-fueled vessels in Korea. We will continue to drive national projects forward together with HD Hyundai and establish technical standards befitting the era of Green Shipping Corridors.”

 

Photo credit: HD Hyundai Heavy Industries
Published: 17 July, 2026

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