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Safetytech Accelerator trials show strong potential to cut methane emissions in shipping

Three technologies from Framergy, Sorama, and Xplorobot, which were selected by MAMII, show potential to detect, measure, and mitigate methane emissions on LNG-powered ships.

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Safetytech Accelerator on Tuesday (21 January) said it has successfully completed three technology feasibility studies as part of its flagship Methane Abatement in Maritime Innovation Initiative (MAMII). 

The studies were done in collaboration with Chevron, Carnival Corporation, Shell and Seapeak.

The results of these feasibility studies showed strong potential to cut fugitive methane emissions in the maritime industry.

MAMII is exploring options to advance these research projects to on-ship trials as soon as possible. 

While methane slip - unburnt methane released during the combustion process - remains the largest source of methane emissions on ships, emissions across the LNG supply chain, from loading to engine delivery, are also a concern. 

These fugitive emissions are often unintended and short-lived, but identifying, quantifying, and mitigating them is essential to achieving industry-wide decarbonization goals.  

Xplorobot, Sorama and framergy were selected by MAMII to help address the vital need to detect, measure and capture fugitive methane emissions from LNG-fuelled ships.

Each provider selected for the trials brings expertise in a different technology, including: 

  • Xplorobot: Provides a handheld device and AI-powered platform to detect and measure fugitive methane on ships using computer vision to pinpoint leak locations, overlay real-time emission rate data, and integrate seamlessly with existing systems for quick issue resolution without requiring specialised training. 
  • Sorama: Develops acoustic cameras that detect fugitive gas by visualizing sound and vibration fields in 3D. Integrated AI and onboard software identify anomalies and classify sounds, enabling direct leak localization without complex analysis. 
  • framergy: Specialises  in adsorbents and catalysts for methane emission management. Their product, AYRSORB™ F250GII, captures and stores fugitive methane by selectively filtering methane from the air, leveraging its ultra-high surface area and coordination chemistry. 

Feasibility Study Results Show Promise For Methane Abatement 

Xplorobot conducted a detailed evaluation of their Methane Compliance Solution, focusing on its efficacy in detecting and quantifying methane emissions on LNG carriers and LNG-powered vessels. 

The study targeted emissions from the warm side of the gas fuel line and both planned and unplanned venting events. Utilising comparable on-land data, this desktop analysis assessed how the technology would perform in maritime settings. 

The technology demonstrated accuracy levels of +/-30% for emissions over 500 grams per hour and +/-50% for emissions between 100 and 500 grams per hour, thanks to a refined neural network algorithm calibrated through controlled release experiments. Xplorobot's solution promises to reduce inspection time dramatically with the ability to inspect 50 to 100 components in under an hour—sometimes as quickly as 10 minutes. 

This efficiency, combined with automated digital emission tracking and compliance reporting, make the solution cost-effective. The next step is to deploy the kit in the field to further validate and optimise the technology for widespread adoption across the maritime industry.  

 

Photo credit: CHUTTERSNAP from Unsplash
Published: 22 January, 2025

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Wind-assisted

DNV: Stricter emission regulations and industry innovation drive rapid WAPS uptake

DNV has published a new whitepaper on WAPS technologies, their onboard implementation, and potential bunker fuel savings to help shipowners determine whether they are a viable business option.

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DNV: Stricter emission regulations and industry innovation drive rapid WAPS uptake

Classification society DNV on Tuesday (4 February) said a surge in industry interest combined with systems builders and yards scaling up production and installation capacity, is set to accelerate growth in orders for wind-assisted propulsion systems (WAPS) in the coming years. 

In response to this trend, DNV's new whitepaper provides a detailed look at WAPS technologies, their onboard implementation, and potential fuel savings to help shipowners determine whether they are a viable business option for their vessels and operations.

DNV’s whitepaper explores the design and operational factors influencing WAPS fuel savings and provides steps for evaluating the technical feasibility of new systems, from concept to implementation. The paper includes two case studies in EU waters modeling how different WAPS installations can effectively reduce fuel costs and emissions in compliance with EU ETS and FuelEU Maritime.

Knut Ørbeck-Nilssen, CEO Maritime at DNV, said: “As we navigate the maritime energy transition, it's crucial to consider all options for decarbonization. And as more verified data comes in, the business case for WAPS technologies is building.”

“They are already delivering significant fuel savings when matched to the right vessel type and operational profile.”

“And as part of the suite of new energy efficiency technologies, WAPS are stepping up to deliver immediate emissions reductions and play a growing role in the maritime decarbonization journey.” 

Retrofitting WAPS is possible for almost any ship with sufficient deck space and unobstructed airflow, even if not originally designed for sails. However, vessels with WAPS integrated into the design offer even greater opportunities for optimization. 

Currently, 75% of the WAPS fleet are retrofits, primarily tankers and general cargo vessels. Rotor sails have been the preferred technology for the bulk and tanker sectors (54% share of systems installed), while suction sails are the main choice for general cargo ships (67%).

Hasso Hoffmeister, Senior Principal Engineer at DNV, said: “Current WAPS technologies use advanced control and automation systems, combining aerodynamics, automation, computer modelling, and modern materials.”

“Today, these technologies are not widely adopted but show significant promise as a component in hybrid propulsion systems. Looking ahead, we might see the first pure wind powered modern large cargo vessel, Orcelle, contracted in the next few years.”

Drivers behind the rapid WAPS uptake are also tied to economic benefits of complying with current and future regulations like the Energy Efficiency Design Index (EEDI), Efficiency Existing Ship Index (EEXI) and upcoming IMO regulations that set CO2 emission requirements for new and existing ships. 

WAPS can help meet these requirements through a correction factor as well as improve Carbon Intensity Indicator (CII) ratings by reducing fuel consumption. 

DNV has been at the forefront of developing rules and standards for verifying and certifying WAPS and their integration onboard, publishing the first class notation for ships using WAPS in 2019. This notation is supported by the ST-0511 “Wind Assisted Propulsion Systems” certification standard. DNV’s “WAPS Ready” notation, which uses a modular approach to verify compliance for future WAPS installations and DNV’s new recommended practice (RP), which proposes an on/off methodology to measure performance, will be updated in 2025.

Note: A free copy of DNV’s WAPS whitepaper can be downloaded here.

 

Photo credit: DNV
Published: 5 February, 2025

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Alternative Fuels

Wilson Sons and partners to conduct first HVO bunker fuel trial in Brazil

Firm received approval from Brazil’s ANP to conduct the first tests on using Hydrotreated Vegetable Oil in the Brazilian maritime sector, with efen and Port of Açu as partners.

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Wilson Sons tugboat

Brazilian integrated port and maritime logistics operator Wilson Sons on Thursday (30 January) said it received approval from Brazil’s National Agency of Petroleum, Natural Gas and Biofuels (ANP) to conduct the first tests on using Hydrotreated Vegetable Oil (HVO) in the Brazilian maritime sector, with efen and Port of Açu as partners.

To replace marine diesel oil, efen will import HVO, also known as renewable diesel or green diesel, to be tested on Wilson Sons’ tugs in the Port of Açu, in São João da Barra (Rio de Janeiro). The liquid handling operation will be conducted at the Açu Liquid Bulk Terminal (TLA), owned by Vast Infraestrutura.

“After the testing period, we expect to expand the distribution of HVO to Platform Supply Vessels (PSVs) and other offshore support vessels in the Port of Açu, encouraging the reduction of greenhouse gas (GHG) emissions in the oil & gas supply chain,” said efen CEO Rafael Pinheiro.

The green diesel study in Açu includes efficiency testing, assessing the effects on maintenance processes, and reducing greenhouse gas (GHG) emissions. Green diesel can reduce carbon dioxide (CO2) emissions by more than 80%, considering its complete life cycle.

“Our decarbonisation agenda does not only include building more efficient tugboats but also decreasing the environmental impact of our fleet of more than 80 vessels. In this context, HVO emerges as a promising solution, as it is a drop in fuel that does not require any adaptations to our equipment, representing an important choice for the port support industry,” said Marcio Castro, executive director at Wilson Sons Towage division.

“We want to foster energy transition projects in emission-intensive industries, such as shipping. In the future, we can set up HVO plants and other facilities for low-carbon fuels,” said Eugenio Figueiredo, CEO of Port of Açu.

Vast and Wilson Sons have also recently signed a memorandum of understanding (MoU) to test the use of biofuels on Wilson Sons’ tug operating at T-Oil, Vast’s oil terminal in the Port of Açu. The agreement aims to develop and offer logistics infrastructure services to help reduce the intensity of carbon emissions in the operations of both companies.

Vast is studying the possibility of using the TLA tank structure, which is yet to be built, to store and add biocomponents to marine fuels and capture liquids not currently planned for the Terminal.

 

Photo credit: Wilson Sons
Published: 3 February, 2025

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LNG Bunkering

SEA-LNG report: Number of LNG-fuelled vessels in operation up by over 33% in 2024

Based on its latest ‘View from the Bridge’ report, SEA-LNG reported an annual vessel growth of over 33% to 638 LNG-fuelled vessels in operation worldwide in 2024.

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SEA-LNG report: Number of LNG-fuelled vessels in operation up by over 33% in 2024

Industry coalition SEA-LNG on Thursday (24 January) reported an annual vessel growth of over 33% to 638 LNG-fuelled vessels in operation worldwide in 2024. 

This was one of the findings of SEA-LNG’s annual ‘View from the Bridge’ report, highlighting 2024 as another year of growth for the LNG pathway. 

Analysing data from SEA-LNG members, the report found that global market adoption and growth reached record heights in 2024. 

Looking forward, over 1,200 vessels are expected to be operating by the end of 2028. In 2024, LNG dual-fuelled vessels accounted for 70% of alternative fuelled tonnage ordered, excluding LNG Carriers, up from 43% in 2023. 

This record expansion follows the growing availability of LNG bunker fuel beyond the traditional bunkering hubs. Currently, LNG bunkers are accessible in approximately 198 ports worldwide, and plans are underway for bunkering facilities in an additional 78 ports. This comes as over 60 LNG bunkering vessels are operating today, marking a 22% increase from 2023. 

The ‘View from the Bridge’ report also highlights how the LNG pathway took a significant step in 2024, with liquified biomethane delivering on decarbonisation and regular renewable e-methane supplies expected in 2026. 

SEA-LNG members are prepared to offer biomethane bunkers in some 70 ports globally, with multiple bunkering operations already taking place. 

A highlight was the successful biomethane bunkering pilot as part of the Methane Track within the Rotterdam-Singapore Green and Digital Shipping Corridor (GDSC). This was the first practical delivery of any international Green Corridor since they were announced as part of the Clydebank Declaration at COP 26 in Glasgow. 

Peter Keller, chairman of SEA-LNG, said: “Our latest View from the Bridge reaffirms the importance of the LNG pathway as a practical and realistic route to shipping’s decarbonisation now. We continue to believe that the shipping industry is heading towards a successful multi-fuel future where LNG will always play a critical role.”

“To deliver net zero by 2050 across the global shipping fleet, a basket of fuels is required and the LNG pathway will continue to lead the way. This is not a case of my fuel versus your fuel but rather which fuel best allows the industry to reach its stated goals. The LNG pathway provides the path to net zero.” 

SEA-LNG’s latest report also highlights that 2024 has seen considerable progress in addressing methane slip. “Advances in eliminating methane slip, in combination with biomethane and e-methane, provide a clear, effective, and viable long-term pathway towards net zero emissions. Shipowners and operators can be confident that the vessels ordered today are future-proofed for their lifespan.”

“With a proven track record of technical improvements to reduce methane slip and upstream emissions, coupled with tighter regulations from global and regional authorities, we continue to believe methane slip will be a non-issue by the end of this decade,” Keller continued.   

FuelEU Maritime will be a key regulation in advancing shipping industry decarbonisation, heading into 2025. According to analysis from SEA-LNG, FuelEU Maritime creates a favourable environment for the LNG pathway. 

With the ability to achieve GHG emissions reductions of up to 23%, LNG-fuelled vessels are compliant until 2039. The use of liquefied biomethane and e-methane can extend compliance through to 2050 and beyond. 

Note: The full report is available for download here.

 

Photo credit: SEA-LNG
Published: 24 January, 2025

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