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Klaveness Combination Carriers to adopt air lubrication tech from Silverstream Technologies

Deal will see the installation of the Silverstream® System onboard 11 of KCC’s vessels including three CABU II class and eight CLEANBU class vessels in two years.

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Clean technology company Silverstream Technologies on Monday (25 April) said it has reached an agreement with Oslo-based fleet operator Klaveness Combination Carriers (KCC) to install an innovative new version of its proven air lubrication system, the Silverstream® System on up to 11 vessels including three CABU II class and eight CLEANBU class vessels.

The retrofit installations will commence in early 2023 and take two years to complete.

The collaboration between Klaveness and Silverstream Technologies has resulted in a pioneering solution suitable for any standard tanker and bulk carrier of this size. 

The deal enables KCC to further enhance the environmental performance of its combination carrier fleet. 

With its capability to carry both types of cargo and other design improvements, KCC’s vessels emit up to 40% less CO2 per ton-mile compared to standard tanker or bulk carriers in similar trading patterns – a performance benchmark that will be boosted by the installation of the Silverstream® System.

The Silverstream® System uses a series of air release units (ARUs) in the vessel’s flat bottom to generate a uniform carpet of microbubbles that travel the full length of the hull, reducing friction between the hull and the water and substantially reducing fuel consumption and carbon emissions as a result. 

Silverstream’s patented technology maximises these net efficiency gains through the system’s low power consumption and highly effective delivery of microbubbles into the boundary layer.

Noah Silberschmidt, Founder & CEO of Silverstream Technologies, said: “We are delighted to sign this deal with KCC and begin work to retrofit our technology across its fleet. KCC has a strong and well-deserved reputation for being a sustainability leader and a genuinely green-minded innovator, and we are confident that our system will help to boost these credentials even further.

“The deal also proves Silverstream’s ability to take on complex retrofit projects and again underlines the attractiveness of our unique technology to a wide range of shipping segments and vessel operations. It also strengthens our ability to be able to serve unique vessel types and positions us perfectly to scale up adoption of our solution in both dry bulk and tanker shipping.

“Shipping has precious little time to act on its environmental footprint and proven clean technologies like the Silverstream® System are one of the only ways that owners and operators can get ahead of the curve. We look forward to further scaling our technology across a range of vessel types and fleet sizes in the near future.”

Engebret Dahm, CEO of KCC, added: “Maximising the energy efficiency of our fleet is a top priority for KCC. It is a prerequisite for reaching our decarbonisation targets and succeeding with the future energy transition. We are pleased to conclude the deal with Silverstream and to start the installation of Silverstream’s innovative and proven air lubrication system on two of vessels in 2023, with the intention to roll out the system on a further nine vessels during 2024-25.

“Silverstream’s system is an important part of a larger planned energy efficiency retrofit programme at KCC, which will aim to further strengthen our lead as the lowest carbon shipping provider in the dry bulk and tanker markets.”

Related: Malaysia: MMHE in strategic agreement to promote vessel air lubrication system
Related: Decarbonising shipping: We must find new ways to resolve the split incentive
Related: Wärtsilä conducts technology trial of air lubrication system on Maersk container ship
Related: MSC orders 30 air lubrication systems from Silverstream Technologies for large container newbuildings
Related: Silverstream air lubrication technology secures eight orders for Hyundai LNG carriers 

 

Photo credit: Silverstream Technologies
Published: 27 April, 2022

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Biofuel

BHP and GCMD trial multi-feedstock B100 bio bunker fuel on bulk carrier

Bio-blend in the BHP and GCMD pilot is being used on a BHP-chartered bulk carrier “Berge Lyngor”, which was bunkered in Singapore in early May.

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BHP and GCMD trial multi-feedstock B100 bio bunker fuel on bulk carrier

BHP and the Global Centre for Maritime Decarbonisation (GCMD) on Wednesday (3 June) said they have blended biofuels from two distinct feedstocks—used cooking oil and waste animal fats —and introduced the lower-emissions marine fuel into a BHP-chartered bulk carrier as part of a pilot project.

The bio-blend in the BHP and GCMD pilot is being used on a BHP-chartered bulk carrier Berge Lyngor, owned and operated by Berge Bulk, transporting BHP iron ore from Western Australia to China. When run on bio-blend, the vessel has the potential to reduce well-to-wake greenhouse gas emissions by approximately 79 per cent per voyage compared to sailing on very low sulphur fuel oil (VLSFO).

The vessel bunkered in Singapore in early May with a B100 bio-blend comprising 50 percent tallow-derived biodiesel, sourced and supplied by HAMR Energy, and 50 per cent used cooking oil (UCOME) supplied by Mitsui & Co Energy Trading Singapore (METS).

Mitsui also blended the fuel and Dan-Bunkering coordinated and executed the bunkering operation, which was performed by Global Energy’s barge MT Maple.

The BHP and GCMD pilot will assess how biofuels from multiple feedstocks can be blended, handled, and introduced under real-world operating conditions using existing used cooking oil bunkering infrastructure.

At the same time, insights from this pilot will help identify solutions to challenges related to fuel quality, handling, traceability, and onboard vessel performance.

Biofuels for global shipping today rely heavily on used cooking oil – a feedstock whose availability is approaching its projected limits. Biofuel from waste animal fats presents a promising option to expand the supply of lower-emissions marine fuels.

The outcomes of the pilot are expected to shed light on the practical steps to integrate biofuel blends from different feedstocks into existing supply chains. The diversity of biofuels will provide shipowners and operators with greater flexibility to optimise fuel procurement based on cost, availability, and lifecycle emissions performance.

Biofuels derived from different feedstocks can exhibit varying properties that may impact operations, including potential corrosion from oxidation, fuel system clogging caused by wax formation, which this pilot aims to assess.

The pilot will trace and verify the biofuel blend’s integrity aimed at bolstering confidence in emissions reductions reporting. The pilot will also provide insights into how robust tracing can support future marine fuel supply chains where biofuels from multiple feedstocks with varying lifecycle greenhouse gas emissions footprints are blended together.

This project is co-funded by the Maritime and Port Authority of Singapore under the Maritime Innovation and Technology Fund (MINT).

 

Photo credit: Global Centre for Maritime Decarbonisation
Published: 3 June, 2026

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Biofuel

NYK starts one-year B100 bio bunker fuel trial on car carrier

In this trial, NYK will operate a car carrier continuously on B100 for one year to evaluate the impact on engines, fuel supply systems, and operational practices.

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NYK starts one-year B100 bio bunker fuel trial on car carrier

Japanese shipping firm NYK on Tuesday (2 June) said it has commenced a one-year long-term trial involving the continuous use of 100% biofuel (B100) on an NYK-operated car carrier. 

In this trial, NYK will operate a car carrier continuously on B100 for one year to evaluate the impact on engines, fuel supply systems, and operational practices. High-purity biofuels such as B100 are known to be susceptible to degradation from oxygen, light, and heat, raising concerns about the stability of such fuels during long-term use.

In this trial, the biofuel primarily comprises FAME (Fatty Acid Methyl Ester) derived from used cooking oil and similar feedstocks.

The initiative is designed to evaluate the fuel’s effects on the vessel’s equipment and verify operational safety under real-world conditions. 

Through this effort, NYK seeks to accumulate technical expertise that will support the broader use of high-purity biofuels and further accelerate efforts to reduce greenhouse gas (GHG) emissions.

NYK has been advancing the use of biofuels through various initiatives. In 2024, the company conducted a trial using biofuel blend B24 and subsequently expanded practical usage to B30. However, the company said there remains limited global experience with the long-term continuous use of B100.

“By collecting long-term operational data through this trial, NYK aims to accumulate valuable technical insights to support both the safe operation of vessels and the wider adoption of high-purity biofuels,” it said. 

 

Photo credit: NYK
Published: 3 June, 2026

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Ammonia

AM Green plans to build green ammonia plant at Indian port

Initiative also includes development of green ammonia handling, storage and bunkering infrastructure, pilot bunkering operations, safety procedures and training programmes, says VOC Port Authority.

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VO Chidambaranar (VOC) Port Authority on Friday (29 May) said it has signed a Memorandum of Understanding (MoU) with India’s ammonia producer AM Green Ammonia to collaborate in the development of a green ammonia production plant.

The plant will have a capacity of one million tonnes per annum (MTPA) at Tuticorin.

The initiative also includes development of green ammonia handling, storage and bunkering infrastructure, pilot bunkering operations, safety procedures and training programmes. 

The project is expected to support the development of green fuel corridors connecting VOC Port with major ports in Europe and Asia, thereby strengthening India’s position in the global green fuels value chain.

VOC Port also signed a Memorandum of Understanding (MoU) with Bureau Veritas (India) Pvt. Ltd., to collaborate on Green Port certification, emissions accounting, ESG reporting, safety validation, development of green bunkering practices, and establishment of a Centre of Excellence for green fuels and sustainability.

The port also plans for an upcoming 750 m³ green methanol bunkering facility.

 

Photo credit: Naveed Ahmed on Unsplash
Published: 3 June, 2026

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