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DNV Decarbonization Insight Series August 2026 - What maritime professionals should know about AI Training

Retrofit

Silverstream completes retrofit of air lubrication system for LNGC at Singapore shipyard

Installation completed in 30 days reinforcing the role that Silverstream’s technology can play as a near-term decarbonisation solution for existing ships.

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Silverstream

London-based maritime clean technology firm Silverstream Technologies on Tuesday (9 April) said it has successfully completed another retrofit of its air lubrication technology, the Silverstream® System, on a large LNG carrier at Seatrium’s Admiralty Yard in Singapore.

The retrofit, which was on a 174k cbm LNG carrier owned by an oil major, was completed in 30 days reinforcing the role that Silverstream’s technology can play as a near-term decarbonisation solution for existing ships. It is the 11th retrofit of the Silverstream® System that the company has delivered worldwide.

The Silverstream® System releases a carpet of air to reduce the frictional resistance between the hull and the water, reducing average net fuel consumption and GHG emissions by 5-10%. Moreover, in the case of LNGCs, these savings result in increased delivered volumes.

Silverstream has a proven track record of newbuild and retrofit installations and has delivered every one of its 69 in-operation installations on time. By completing the retrofit within 30 days, Silverstream also minimises any impacts on a vessel’s profitability.

Speaking on the announcement, Noah Silberschmidt, Founder & CEO, Silverstream Technologies, said: “This successful retrofit at Seatrium of our technology onboard another LNG carrier is yet further proof of our deep experience in the LNG segment. The market conditions and operational factors unique to LNGCs make them perfectly suited to our air lubrication technology, and we will continue to work with energy majors and our yard partners to ensure smooth installations onboard any vessel that chooses us as an efficiency-boosting option.”

Alvin Gan, Executive Vice President, Repairs and Upgrades, Seatrium Limited, said: “As the premier yard in LNGC repairs, upgrades and conversions, Seatrium is committed to working with our customers and partners to provide turnkey, one-stop solutions in energy efficiency retrofits for LNG carriers. Our collaboration with Silverstream Technologies is successfully delivering another retrofit of their air lubrication technology and further solidifies our position in the industry. By providing comprehensive engineering services through excellent project execution, we aim to continue to lead and play a key role in assisting our customers to achieve their energy efficiency targets.”

 

Photo credit: Silverstream Technologies
Published: 11 April 2024

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LNG Bunkering

EXMAR to convert LNG carrier into floating transshipment unit for bunkering

Vessel will soon undergo a dry-dock including modifications to make the vessel suitable as a floating transshipment unit, dedicated to the LNG bunkering market.

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EXMAR to convert LNG carrier into floating transshipment unit for bunkering

Ship owner EXMAR on Thursday (6 August) announced that it has taken delivery of the 146,000 m³ LNG Carrier SIMAISMA

The vessel is secured under an initial seven-year charter contract with a “first-class counterpart”. 

“The vessel will soon undergo a dry-dock including modifications to make the vessel suitable as a floating transshipment unit (FTU), dedicated to the LNG bunkering market,” it said in a statement. 

The FTU will receive large parcels of LNG from trading LNG carriers and specialised LNG bunkering vessels will load at the FTU before supplying it as a fuel to vessels that use this LNG as a bunker fuel.

EXMAR’s CEO, Carl-Antoine Saverys, said: “EXMAR is gladly assisting its client in further paving the way to unlock LNG as a fuel for the shipping industry. 

“The FTU is a smart solution with which our client brings down the costs of the logistics relating to the LNG bunkering. 

“With this solution, we are building upon EXMAR’s close to 50 years of LNG experience. We look forward to deploying more of these assets to unlock the full potential of LNG as a fuel for the maritime industry.”

 

Photo credit: EXMAR
Published: 7 August, 2026

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Alternative Fuels

EC clears EUR 103 mil Dutch funding for renewable methanol and hydrogen-powered ships

Scheme will support purchase of vessels powered by renewable methanol or renewable hydrogen and retrofitting of existing vessels to enable them to use renewable methanol and renewable hydrogen.

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Guillaume Périgois on Unsplash

The European Commission recently said it has approved a EUR 103 million (USD 119 million) State aid scheme by the Netherlands to accelerate the greening of the Dutch maritime fleet. 

The scheme will support the purchase of new clean and zero-emission vessels powered by renewable methanol or renewable hydrogen and the retrofitting of existing vessels to enable them to use renewable methanol and renewable hydrogen. 

It covers different types of vessels, including passenger, cargo and work vessels, mainly operating in the short-sea shipping segment. The support will take the form of direct grants awarded under an open, transparent and non-discriminatory selection process.

The scheme aims to help companies overcome high upfront investment costs and limited market incentives that currently slow the uptake of clean shipping technologies. The aid will be granted between 2027 and 2031 and will help bridge the investment gap in line with the objectives of EU legislation such as the FuelEU Maritime and the EU Emission Trading System.

The Commission assessed the measure under EU State aid rules, in particular Article 107(3)(c) of the Treaty on the Functioning of the EU and the 2022 Climate, Environmental Protection and Energy Aid Guidelines (CEEAG). 

“The Commission concluded that the scheme is necessary and appropriate as the supported investments would not take place without public support at the same scale and within the same timeframe. The measure is also proportionate as it has limited effects on competition and trade in the internal market,” it said. 

 

Photo credit: Guillaume Périgois on Unsplash
Published: 3 August, 2026

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Retrofit

DNV on key lessons learned from a 20,000 TEU methanol retrofit delivered by global partners

DNV demonstrated how complex methanol retrofits can be carried out in practice through a project involving COSCO Shipping, CHI Shanghai, MARIC, suppliers, and DNV.

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DNV on key lessons learned from 20,000 TEU methanol retrofit

Classification society DNV recently highlighted how complex methanol retrofits can be carried out in practice through a project involving COSCO Shipping, CHI Shanghai, MARIC, suppliers, and DNV. 

Its latest Maritime Impact article detailed challenges in design integration, construction, commissioning, and operations, while demonstrating how close collaboration and early planning support more efficient delivery and knowledge transfer: 

The world’s first methanol conversion project for a mega container carrier was completed at CHI‑Shanghai’s yard in September 2025. At nearly 400 metres in length and with a capacity of 20,000 TEU, the seven‑year‑old vessel became the first ship of its kind to be retrofitted to run on methanol. 

Delivered through close coordination between COSCO Shipping, CHI Shanghai, designers, suppliers, and DNV, and supported by a process of continuous learning, the project demonstrated that deep, first‑of‑a‑kind retrofits can be executed safely, on time, and at industrial scale.

Designing a methanol conversion for a megaship

The vessel’s fuel system, designed only for conventional fuels, required fundamental changes to enable safe and compliant methanol operation across propulsion, auxiliaries, storage, and safety systems.

The general design was developed by MARIC, while CHI Shanghai carried out the detailed engineering and served as EPC contractor. The scope included conversion of the ship’s MAN B&W 11S90 main engine and two of its four Wärtsilä auxiliary engines to dual‑fuel operation. In parallel, new methanol fuel tanks with a total capacity exceeding 15,000 cubic metres were installed forward of the engine room, together with new fuel preparation and supply systems.

Coordinating the complexity of retrofitting

Delivering this as a retrofit rather than a newbuild added complexity that is often underestimated. Existing structural arrangements could not simply be replaced, and new systems had to be integrated into confined spaces, requiring innovative construction sequences and tight interface management between suppliers. 

“This was a very complex project involving many parties, including engine makers, fuel system suppliers, and automation and safety specialists,” says Yan Hao, Commercial Director at CHI‑Shanghai. “It was also the first time all of these suppliers had worked together on a methanol retrofit of this scale. Coordination was critical.”

Note: The full article by DNV can be read here.

 

Photo credit: DNV and COSCO Shipping
Published: 15 June, 2026

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