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Somtrans' latest United bunker barge an international affair

Outfitted in the Netherlands, with a hull built in China, Somtrans’ new bunker barge, United LNG I, will help the company to extend its LNG bunkering capacity across various Belgian and Dutch seaports

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ZeroUSV's Oceanus17 USV builds on core values

The forthcoming Oceanus17 USV from UK-based ZeroUSV will incorporate most of the components and design features that characterised its earlier, smaller, Oceanus12 model, speeding up the design, engineering and build phases

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The USV launch and recovery 'missing link'

Sealartec's radical ALR-S technology can convert a conventional ship's stern ramp to a fully autonomous recovery system for unmanned surface vessels

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'ROC + Dock' project darts towards the wrap-up phase

The UK-based ROC + DOCK project has brought together remote-controlled operations, a dual-function simulator and a ‘hands-off’ docking station, to encourage force multiplication of uncrewed vessels in ports and harbours

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Hybrid CSOV 'Windea Clausius' joins Bernhard Schulte Offshore fleet

The latest addition to Bernhard Schulte Offshore’s CSOV fleet, Windea Clausius, combines a methanol-ready hybrid propulsion plant with Ulstein’s Twin X-STERN design for energy efficiency and ease of operations

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Wind power for patrol boats? Ask the New Generation

We've seen wingsails applied to bulkers and tankers - but aboard a smaller patrol boat? The latest design from MAURIC, set for launch in 2027, could open up an entirely new market for wind-assisted propulsion systems

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Repurposed for surveillance

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Aircat on the attack

Singapore-based shipbuilder Strategic Marine has signed a memorandum of understanding with US-based Eureka Naval Craft to collaborate on the construction of the first Aircat Bengal MC Modular Attack Surface Craft.

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Nuclear ships: who pays the price?

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How drones are ramping up ship security fears

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CORPORATE PARTNERS

Performance is key for new 70 knot hotshot
A touch of SES know-how for offshore Angola
Canada gears up for River-class destroyers
UK and Japan unite to fine-tune floating offshore wind future
All-electric overhaul for car ferry 'MF Hamlet'
IHC Dredging secures Indonesian order
Using AI to fast-track maritime nuclear licensing
Ship repair and retrofit trends boost Seatrium
SPONSORED: FleetguardFIT™ Reduces Service Cost by 50% for Marine Customer
Alt-fuel adoption on the ascent, DNV notes
Green Marine dives deep with new subsea-focused investment
Fincantieri stacks up cruise build and repair work
New Logistics Support Ship designs from Damen
Call for UK to exploit 'unique' nuclear opportunity
Build it smart: UK yards must tackle AI and robotics skills gap
Heavy-lift muscle for Japanese wind farms
Four more Type 212CD subs for German Navy
Drones partner up for subsea asset checks
"Significant milestone" for homebuilt Indian Navy vessels
New IACS recommendation for shore-to-ship power
Damen repair division invests further in sustainability

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With more than 1,000 newbuilds and decades of high-speed action under its belt, sports boat brand Performance Marine is celebrating its 40th anniversary this year with the launch of the Performance 90X: a design intended to comprise a “perfect fusion of brute force and absolute control”, the company says.

Getting to this stage has been quite the ride; the company and its various designs passed through several hands over the years before reaching its current German owners, Frauke and Stefan von Klebelsberg, who are now restructuring operations to future-proof Performance Marine’s output.

The 90X is heavily influenced by the hull of the group’s previous, 9m-long Performance 907 sports cruiser: a planing design, built in PVC. The revamped 90X was handled by German yacht design and engineering studio iYacht, which was responsible for both the design and the engineering of the new boat. iYacht encountered a few challenges – not least being the deck, an intricate structure comprising nearly 20 moulded parts.

Udo Hafner, iYacht CEO, tells The Naval Architect: “The deck itself is highly sophisticated, incorporating a wide range of functional and comfort elements. To ensure both safety and stability, our team of designers and engineers worked in close collaboration throughout the entire process, synchronising all aspects of the design.

“We were directly involved with the tooling company, ensuring that every detail was meticulously refined to meet the highest standards. This hands-on approach allowed us to optimise the modular construction, guaranteeing precision and structural integrity while maintaining the performance and aesthetic that define the 90X.”

The 90X boat’s propulsion system offers several options, including inboard Mercury MerCruiser engines with power outputs ranging from 430-1,130hp (approximately 320-843kW), coupled with a Bravo One XR drive. The variations include: two MerCruiser V6, 4.5litre-displacement models, with a total output of 500hp; two V8, 6.2litre-displacement models with a total output of 700hp; two V8, 8.2litre-displacement models with a total output of 860hp; or two V8, 8.7litre-displacement units with a total outputof 1,130hp.

The boat’s top speed comes to an eye-watering 70knots. “The Mercury Zero Effort DTS system replaces traditional throttle and shift cables with cutting-edge digital precision, delivering instantaneous throttle response,” iYacht adds. “This advanced technology ensures an unmatched driving experience with ultra-fast performance.” Future customers can opt for a joystick piloting system, integrating engines, gearboxes, steering and thrusters into a single unit,  for greater ease of handling and, especially, docking.

The 90X cockpit was designed with a keyless ignition system that doubles as a wireless engine cut-off switch in an emergency. The onboard infotainment system includes multiple screens across the boat, enabling passengers, the driver and co-pilot to check the vessel’s speed, while a dedicated boat app enables users to remotely monitor battery and fuel levels, or to even change the lighting and start cooling onboard drinks, using smart devices on shore.

As part of its design remit, iYacht also optimised the available onboard space, allowing the designer to  produce a cabin with a net headroom of 1.75m and a king-sized bed. iYacht designer Joachim Benders comments: “I spent a great deal of time focusing on ergonomics—exploring the relationship between function, space, and people. I carefully analyse how guests move onboard, and assess how the design translates into real-world experiences for users.”

 

TECHNICAL PARTICULARS: Performance 90X

Length, oa: 9.15m / Breadth: 2.6m / Draught: 0.43m / Max power: 832kW / Max speed: 70knots / Fuel capacity: 600litres / Water capacity: 117litres / Passengers: 8 / Design category: B

The three new surface effect ships (SES) recently delivered by Strategic Marine to Angola’s Energy Craft fleet are remarkable in more ways than one: sea trials demonstrated a top speed of 53knots but at a similar nautical-mile fuel consumption as far slower boats, writes Stevie Knight. The Crewliner 35 also delivers personnel without making them feel as if they’ve been travelling by cocktail shaker. However, the design’s inception was actually sparked by two dramatic crashes.

First, in 2014, came the sudden decline of the global oil and gas market. This meant day rates dropped like a stone for most vessels, says Eduard Ercegovic, technical director and co-founder of Aircat Vessels – who was then managing a fleet of chartered vessels for an offshore support company. The second was the 2016 Super Puma helicopter disaster in Norway, which claimed the lives of all 13 on board. This was followed by a sudden fall in helicopter availability.

Further, in the background was the ageing state of the long-range, 60-90-pax fast crew vessel (FCV) fleet – the vessel types that Ercegovic often chartered. The speed asked of FCVs means they can’t run forever, he explains: “They just get exhausted.” That left a niche in the market: what was needed was a more cost-effective alternative to helicopter transport and a more efficient, faster boat than a standard FCV.

So, Ercegovic and his colleague, Aircat Vessels managing director Jérôme Arnold, partnered with Norwegian naval architecture firm and SES specialist ESNA to create the Aircat 35 Crewliner. These vessels are basically a cross between a hovercraft and a catamaran; they generate an air cushion between the hulls to reduce resistance by lifting up to 80% of the boat’s weight out of the water. The effect is to reduce the vessel’s draught from 2.4m to a mere 0.8m.

This is achieved by a pair of large, 478kW fans, integrated into the forward half of the hulls. “These are not really custom-made – they’re actually the same blowers that you use for factory ventilation,” Ercegovic reveals. The dual fans push the air into the cushion that’s captured between two skirts; one fore, one aft of the boat’s high tunnel – but these have quite different characteristics. The forward skirt matches the bow angle and is made up of seven vertical, finger-like folds all nestled together, rather than a single sheet. If one of these fingers gets damaged, it will naturally deflate – but its sisters will automatically crowd in to take up the space, providing redundancy.

The rear skirt is very different and better described as a tiered structure of horizontal bags, maintained at just a little more pressure than the main cushion. These stern lobes, with the help of two vents, passively adapt to the waves by forming and reforming around the waves, to reduce pitching and a certain amount of roll – although that’s also minimised by the vessel’s 13.9m beam.

However, the main cushion is more actively modulated by four damper cassettes (vents) controlled by a computerised SES management system, which gathers data from multiple pressure sensors in the tunnel and from a motion reference unit (MRU). Since the electric actuators that open and close the dampers allow instant adjustment, the result is high-speed ride control.

“You can change the setting to maximise the lift and minimise the draught when you are going full speed in relatively calm seas,” says Ercegovic, adding that this leaves just enough draught for the propulsion and cooling to be effective. It’s also possible to dial it down since different, preset modes allow the crew to choose a ‘ride control sensitivity’. “There is some penalty to the speed if you increase the comfort, but it’s usually just a few knots,” Ercegovic says.

Canada’s minister of national defence Bill Blair has announced the award of an implementation contract to Irving Shipbuilding for construction of a new class of destroyers, to be known as the River class. The River-class destroyers will replace the Royal Canadian Navy’s now-retired Iroquois-class destroyers and 12 Halifax-class frigates with a single ship that can handle multiple threats. At present, 15 examples of the vessels are expected to be built.

The design is based on BAE Systems’ Type 26 warship, which is being built by the UK for the Royal Navy, a variant of which is also being built for Australia as the Hunter-class frigate. The first three Canadian ships will be named FraserSaint-Laurent and Mackenzie.

The new vessels will have a length overall of 151.4m, a beam of 20.75m and a speed of 27knots. They will displace 7,800tonnes, have a maximum navigational draught of 8m and a range of 7,000nm. With accommodation for 210 personnel, they will have the capability to embark a CH-148 Cyclone helicopter, plus space for embarking remotely piloted systems.

The new destroyers will use a variant of the Aegis combat system with Cooperative Engagement Capability, and will be equipped with lightweight torpedoes, the Rolling Airframe Missile air defence system, two stabilised rapid-fire 30mm naval gun systems and surface-to-surface anti-ship missiles. Their primary air defence system will take the form of vertical launch systems for the Raytheon Standard Missile 2 and Evolved Sea Sparrow missiles. They will have reconfigurable mission and boat bays and a combined diesel-electric or gas (CODLOG) propulsion system based on a Rolls-Royce MT30 gas turbine, four Rolls-Royce MTU diesel generators and GE electric motors.

The initial implementation contract is for an agreed contract period of six years, with a contract extension to follow as the successful construction progresses.

The Government of Canada has established the cost to build and deliver the first three ships at C$22.2 billion (US$15.4 billion). This estimate includes the costs that will be paid to Irving Shipbuilding through the implementation contract, as well as costs associated with the delivery of the equipment, systems and ammunition that Canada will acquire to bring the first three ships into service. It is estimated that the implementation contract will contribute C$719.3 million annually to Canada’s GDP and create or maintain 5,250 jobs annually between 2025-2039.

“By investing in our own industry, Canadian workers are helping to build the fleet of the future, equipping the Navy and our members in uniform modern and versatile ships they need for Canada’s important contributions to peace and security at home, and abroad,” said Blair.

To help bring the River-class vessels into service and support them throughout their lifecycle, the Department of National Defence (DND) is building a land-based testing facility on a portion of DND-owned land in Halifax, Nova Scotia. Construction is expected to begin this summer, with completion expected in 2027.

The Offshore Renewable Energy (ORE) Catapult, UK and the Japanese Floating Wind Technology Research Association (FLOWRA) have signed a memorandum of understanding (MoU) to work towards reducing risks and costs related to floating offshore wind.

The MoU, signed in Tokyo on 7 March, follows nine months of collaboration between ORE Catapult and FLOWRA. The initiative will cover areas such as personnel exchange, standardisation of component technologies and the creation of a “test and demonstration alliance” to develop technology on a large scale, ORE Catapult says. The MoU coincides with a wider recent co-operation between the UK and Japanese governments with regard to the development of these turbine types.

Jonathan Reynolds MP, UK secretary of state for business and trade, comments: “This partnership with Japan will turbocharge the development of this vital renewable energy. International partnerships like this will attract investment and deliver long-term, stable growth that supports skilled jobs and raises living standards across the UK, making our ‘Plan for Change’ a reality.”

The UK government’s Plan for Change aims to “make Britain a clean energy superpower” while kickstarting new economic opportunities for domestic businesses. The ORE Catapult-FLOWRA MoU will ultimately combine “UK R&D capability” and “Japanese industrial manufacturing capacity” for a surge in floating offshore wind technology development, ORE Catapult adds.

As well as providing economic benefits for each country, a robust offshore floating wind capability will bolster energy security for the UK and Japan, while assisting both to pursue their decarbonisation goals, adds Dr Cristina Garcia-Duffy, director of research and technical capabilities at ORE Catapult. For example, the Japanese government has set ambitious targets of 10GW of offshore capacity by 2030, increasing to 45GW by 2040. Floating wind turbines are expected to play a significant role here, due to Japan’s limited availability of shallow-water sites for fixed-bottom turbines.

Additionally, the UK government’s British Energy Security Strategy, rolled out in 2022 in response to gas supply disruption in the wake of the Russia-Ukraine conflict, aims to generate 60GW of electricity from offshore wind sources by 2030, an estimated 5GW of which would be supplied by floating offshore wind turbines.

Norway-based Kongsberg Maritime has secured a leading role in a project to convert the double-ended car ferry MF Hamlet to battery-powered operation. The conversion of the 111.2m ferry, which is operated by Öresundslinjen on the route between Helsingør, Denmark, and Helsingborg, Sweden, will include the installation of battery packs and new permanent magnet motors for the azimuth thrusters.

Kongsberg says: “The primary goals of the project include achieving zero emissions, enabling full electric operation with batteries and having mechanical propulsion redundancy. The ferry will utilise high-voltage charging in port, taking only eight to 12 minutes, with low-voltage charging via gensets as an alternative.”

Kongsberg will also rebuild the existing thrusters and convert them to electric operation, installing new permanent magnet motors for each of the four main azimuth thrusters, each rated 1,530kW. The company adds that it will “provide a comprehensive energy, automation and control package, which includes interface to the main switchboard, retrofitting the K-Chief 600 to the new K-Chief system with an energy management system, and implementing Mcon thruster control with control chairs on the two bridges”.

Energy storage systems will be supplied by Echandia directly to the owner, while the Oresund Drydocks shipyard will handle the mechanical aspects of the conversion. The installation company, SH Group, will produce and install new deck houses and handle the cabling and wiring work.

The conversion job is scheduled to start in November this year at Oresund Drydocks, but the vessel will visit the yard later this month for preparation work during a scheduled maintenance docking. 

IHC Dredging has been contracted to supply two Beaver 65-class cutter suction dredgers to PT. Dua Samudera Perkasa, a subsidiary of Indonesia’s Jhonlin Group.

PT. Dua Samudera Perkasa previously took delivery of a Beaver 65, Jhoni 59, in August 2024. That vessel is now working at the coal transport and biodiesel terminal at Batulicin, South Kalimantan, alongside the Beagle 4-class dredger Samson, which IHC delivered to Jhonlin Group in 2023.

The Beaver 65 design features a length overall of 58m, a 12.4m beam and a depth of 2.97m. The dredger type has an average draught of 1.9m (max 2.02m) and more than 2,800kW of installed power.

Like other vessels in the Beaver 65 class, the new duo will be equipped with 650mm-diameter suction/discharge pipes. However, while these dredger types typically have a maximum dredging depth of 18m, this has been extended to 25m max for the new pair.

IHC Dredging adds that each new dredger will be equipped with upgrades including: a fuel separation system; a “state-of-the-art” radioactive production measurement system; and a dredge track presentation system (DTPS) with an accuracy of up to 20mm, providing the dredge operator with a digital overview of the hopper, cutter, excavator, clamshell and bucket line dredges. The two newbuilds are scheduled for delivery in September this year.

Classification society Lloyd’s Register (LR) says it plans to use Microsoft’s Azure OpenAI Service as a tool to accelerate licensing processes for nuclear in maritime applications.

The idea is to use the Azure OpenAI platform to analyse historic nuclear licensing data, which should help licensing engineers to draft new permit documents far more quickly, LR anticipates. The platform will also enable engineers to search for “regulations, precedents and other valuable information buried in large regulatory datasets” in a comparatively timely manner, LR says.

Jeff Scott, LR deputy chief technology and innovation officer, comments: “Regulations shouldn’t be a roadblock to innovation—they should be a launchpad. By teaming up with Microsoft, we’re using AI to cut through the red tape and fast-track the future of nuclear in maritime. It’s an exciting step toward making clean energy a reality on the water.”

Mark Tipping, LR’s global offshore power-to-X director, adds: “We have a large data source from decades of regulatory applications, which these AI capabilities can interrogate swiftly to identify good practice and lessons learned. Together, we’re tackling one of the biggest challenges in deploying nuclear technology, which is navigating complex, slow and costly licensing processes.

“Collaborating with Microsoft provides us with an excellent opportunity to combine two very different areas of expertise: their AI capabilities; and our vast history and knowledge of maritime and nuclear safety.”

One claimed benefit of the Azure OpenAI Service is the ability for end users to ask direct questions instead of writing complex database queries. When used in conjunction with Microsoft’s Azure AISearch, users can search through vast repositories of historic data, including documents, PDFs and databases, using keyword and semantic search capabilities.

Meanwhile, the Japan Society of Naval Architects and Ocean Engineers has launched its Review Committee of Nuclear Energy Utilization in Maritime Industries. Set to run for two years, the Review Committee, headed by Taiga Mitsuyuki, associate professor at Yokohama National University, will analyse the various barriers to maritime nuclear (including technical challenges, public acceptance and financial viability) and how to overcome them, using domestic and international case studies for reference.

The domestic case studies will include input from persons involved in the development of the 130m, nuclear-powered Japanese vessel Mutsu, which was launched in 1969. Built by Ishikawajima-Harima Heavy Industries (now IHI Corporation) and originally powered by a pressurised water reactor (PWR), Mutsu was subject to criticism, and particularly so from local fishermen, after a minor radiation leak during its first test run in 1974. The programme was shelved, and the PWR removed in 1995, with the vessel being repurposed as the oceanographic research ship Mirai.

The Review Committee says it will wrap up its work in November 2026.

Singapore shipyard group Seatrium has turned in an impressive set of results in its first full year of operations since its creation, following the merger of the Sembcorp Marine and Keppel O&M shipyard operations in April 2023. The company achieved an underlying net profit of S$200 million (US$148.3 million) in 2024, compared with a loss of $S28 million in 2023. Revenues surged 27% year-on-year to S$9.2 billion.

One of the driving forces behind the improved results was the performance of its ship repair division, which achieved a 7% increase in revenues to S$1.1 billion. The company worked on a total of 231 ship repair and refit projects during the year, compared with 291 in 2023, thereby achieving a significant increase in the average value of work per vessel.

Chris Ong, Seatrium CEO, says: “Marine decarbonisation and fleet rejuvenation continue to drive demand in this part of our business.” The company recently completed a contract to retrofit the first onboard carbon capture and storage system (CCSS) on board the 160m LPG tanker Clipper Eris for Solvang, as a result of which the vessel will be able to store up to 70% of its carbon emissions on board. Seatrium has recently secured a second CCSS retrofit contract for Mitsui OSK Lines.

Seatrium has also taken steps to strengthen its repeat customer base with regard to ship repair and retrofit work. Over the past year, the company has signed or renewed four favoured customer contracts (FCCs), taking the number of such agreements in place to two as of March 2025. Ong adds: “These FCC contracts are important as they provide us with revenue visibility and enable forward capacity planning.”

Oil and filter changes at 250 or even 500 hours, as recommended in manufacturers’ maintenance manuals, make for a demanding service schedule. However, the introduction of the Fleetguard filtration monitoring system, FleetguardFIT™, proved service intervals could safely be extended to 1500 hours for M/S Hendrika, a dry cargo vessel. This reduced engine maintenance costs by approximately half for ship owners, the de Boer family, based in the Netherlands. Prior to the FleetguardFIT installation, the de Boers serviced the engine oil and filters every 800 hours.

FleetguardFIT, which stands for Filtration Intelligence Technology, monitors filters and engine oil health in real time using smart sensing, state-of-the-art algorithms, cloud computing, and on-board diagnostics. Developed by Atmus Filtration Technologies, this system optimizes filter and oil life. Servicing only when needed saves time and money and avoids unnecessary downtime. In addition, the de Boers discovered that the increase in efficiency provided by FleetguardFIT reduced environmental impact which could help them win more business.

M/S Hendrika

Vessel type Dry cargo transportation
Length 85 meter
Tonnage 1438 ton
Built 1981
Operating hours 10-12 hours, 6 days a week

Engine

Manufactured 2005
Type Cummins KTA38M
Horsepower 1000 HP
Displacement 38 liter
Operating hours 8-12 hours, 6 days a week

 

M/S Hendrika is the first marine vessel in the Netherlands with FleetguardFIT. Installed on the 1,000 HP engine are two LED air filter restriction indicators, an oil quality sensor, and differential pressure sensors for the lubrication filter and the fuel water separator.

Following installation, the de Boers have been able to monitor oil and filters through the FleetguardFIT portal. The color-coded dashboard displays any actions required and the remaining useful life of all monitored consumables. For fleet owners, equipment status can be viewed per vessel, enabling them to track maintenance events and consumable performance over time. One notable aspect of the portal is its critical alert feature. M/S Hendrika avoided costly downtime thanks to a critical air filter alert from FleetguardFIT.

FleetguardFIT can also provide third parties, such as insurance companies, with proof that oil and filter changes have been carried out on time, critical alerts have been responded to promptly, and oil quality has always been correct during the engine’s operating hours.

Paul Louwe, senior technical support engineer for Atmus Filtration Technologies says, “The right filters on high horsepower engines can last two to even eight times longer than manufacturer’s recommendations. Furthermore, predictive maintenance based on real-world conditions can save thousands in unplanned downtime per vessel per year, which can be significant for a fleet owner.”

Although not part of a fleet of vessels, for M/S Hendrika, the benefits of the condition-based monitoring system are clear. As well as meeting the original goal of reducing maintenance costs by extending the life of the oil and filters, it has helped extend equipment life and maximize uptime, while lowering the environmental impact of the business.

FleetguardFIT is suitable for air, oil and fuel filters, and lube oil on diesel and natural gas engines and can be used on other types of non-classed inland-waterway vessels, such as passenger ships and carriers of other types of cargo.

For more information about FleetguardFIT, visit Fleetguard.com

Fleetguard, a brand of Atmus Filtration Technologies Inc., is a leading brand in advanced filtration solutions, offering a wide range of products such as fuel filters, lube filters, air filters, crankcase ventilation, hydraulic filters and coolants.

As something of a stellar year for ship production, 2024 saw a 38% year-on-year increase in orders for alternative-fuelled newbuilds, totalling 515 ships, according to data released by DNV’s Alternative Fuels Insight (AFI) platform.

The AFI data suggests that container ship orders led the charge, with 69% of these orders opting for alt-fuels, predominantly (67%) LNG. Container vessels and car carriers accounted for 62% of all green-fuel orders last year, indicating that the maritime sector is taking decarbonisation seriously. The data also shows that 166 new orders opted for methanol as a fuel, comprising 32% of the AFI order book. Of these methanol orders, 85 were placed in the container ship segment.

Ammonia-fuel vessel orders were also on the up, increasing from eight in 2023 to 27 last year. However, the AFI data underscores that LNG emerged as the industry’s alt-fuel of choice in 2024, accounting for 264 orders; a significant increase on the 130 orders recorded in 2023. The data also highlights that the number of LNG-fuelled ships in service increased to 641 by the end of 2024, with a record number of deliveries (169) of these vessel types recorded in this period. DNV anticipates the number of LNG-powered ships in operation to double by the end of the decade.

This growth has been accompanied by an expansion of LNG bunkering infrastructure, with the number of LNG bunker vessels increasing from 52 in 2023 to 64 last year. However, DNV notes, there is still a demand-supply gap, which is “expected to widen over the next five years, based on the orderbook”. The class society adds: “With the EU regulatory package ‘Fit for 55’ setting requirements on a large network of ports to have LNG bunkering infrastructure, it is expected that the availability of LNG in ports will increase.”

Knut Ørbeck-Nilssen, CEO, maritime at DNV, comments: “While recent figures are promising, we must keep pushing forward. The technological transition is underway, but supply of alternative fuel is still low. As an industry, we need to work with fuel suppliers and other stakeholders to ensure that shipping has access to its share of alternative fuels. It is also important that the safety of seafarers is ensured as we make this transition. This will require investment in upskilling and training.”

DNV shortly followed up on its AFI findings with the publication of a white paper entitled Biofuels in Shipping, in which it assessed biofuels such as fatty acid methyl ester (FAME) and HVO. This paper concludes that both biofuels have significant potential for reducing GHG emissions, thereby aiding compliance with CII, EU ETS and FuelEU Maritime. However, the paper warns, widespread adoption of biofuels is limited by the availability of sustainable, affordable biomass and competition from other sectors.

In 2023, the paper notes, biofuels constituted just 0.3% of shipping’s total energy use. The paper highlights the need for shipowners to consider alt-fuels alongside biofuels, given that biofuel use in shipping mostly involves blending with traditional fuels. Going forward, it will also be important to develop technical and operational considerations for using biofuels as drop-in fuels, accounting for factors such as fuel quality, system compatibility and performance monitoring, the paper cautions.

Coincidentally, 2024 saw Singapore record a surge in alternative fuels adoption, with sales of alt-fuels surpassing 1.3 million tonnes for the first time. Figures released by the Maritime & Port Authority of Singapore (MPA) reveal increases in bunkering sales for biofuels (up 68.5% to 883,000tonnes), LNG (up 318.9% to 464,000tonnes), methanol (2,000tonnes) and ammonia (9.74tonnes).

The MPA is proactively pushing decarbonisation in its waters. For example, under the terms of the Maritime Singapore Green Initiative (MSGI), the MPA has pledged to provide up to 100% port dues concession to any oceangoing vessel calling at the Port of Singapore that uses zero-emissions fuels and technology (including battery power), zero-carbon fuel or certain low-carbon-content fuels and biofuels, until 31 December 2027.

Orkney-based Green Marine is expanding its range of in-house subsea O&M services by investing an undisclosed but seven-figure sum into the creation of a Subsea Services Department, focused on underwater maintenance across UK offshore wind farms.

The new department, which will open in late spring, aims to meet growing demand in an O&M market projected to reach £270 million by 2030, Green Marine says. The department will introduce a range of services, including: general visual inspections; 3D surveys, incorporating real-time simultaneous localisation and mapping (SLAM) analysis; evaluations of the physical, biological and geological conditions of specific marine sites; and O&M monitoring, with a focus on subsea cables/pipelines and offshore structures.

Jason Schofield, Green Marine MD, says: “While this entails an initial seven-figure capital investment, the longer-term company strategy is to continue investing and expanding way into the future. We benefit from a strategic location in Orkney with the world’s second-largest installed offshore wind capacity on our doorstep.” He tells The Naval Architect that a new team will be employed to support the rollout of the department, adding at least three to four full-time jobs. “This will expand quickly as the department and equipment utilisation grow too,” Schofield says.

Green Marine recently received a cash injection from Highlands and Islands Enterprise, which will be used to purchase subsea technology like ROVs and sensors. For example, the company has invested in the VALOR ROV, supplied by Rovtech (which acquired the VALOR line from Seatronics in January). This 860mm-long ROV is rated for a depth of 300m and has a maximum payload capacity of 21kg. Green Marine also intends to shop for tech from companies such as Sonardyne, Norbit, Voyis, Tritech, Digital Edge Subsea and EIVA.

Elaborating on the Subsea Services Department’s purpose, Myles Metson, Green Marine operations and technology director, says: “Ultimately, this means we are not reliant on equipment availability or unknown personnel. We can ensure rapid mobilisation and reduced overheads during off periods. It also relieves a major headache for our clients when reliant on a multitude of equipment, operators and expertise to deliver complex services.”

Green Marine has previously been involved in projects across offshore wind farms including Dogger Bank, Moray East and Triton Knoll, among others. The company also provides crew transfer and dive support services.

Italy’s Fincantieri, one of Europe’s premier cruise shipbuilders, has achieved considerable success of late in this sector. Recently, its Monfalcone shipyard delivered the 160,000gt Mein Schiff Relax, the first of two environmentally friendly InTUItion-class cruise ships with dual-fuel (LNG and MGO) capability that Fincantieri is building for this shipowner. The sister ship will set sail in mid-2026.

The new design features: catalytic converters meeting Euro 6 emissions standards; a generative turbine, using the residual heat from the diesel generators; and an electrical shore-power connection. The vessel is also equipped with an innovative waste treatment system capable of transforming organic materials into recyclable components through a thermal process.

Fincantieri also confirms that a letter of intent signed with Norwegian Cruise Line (NCL) last year has been converted into a firm order for four new cruise ships, each approximately 226,000gt. These vessels, the largest ever built for NCL, will also be constructed at Fincantieri’s Monfalcone yard, with deliveries scheduled for 2030, 2032, 2034 and 2036. This order strengthens the long-standing partnership between Fincantieri and NCL, with Norwegian Aqua, the first unit in the Prima Plus class, set for delivery in the next few months. Additionally, three other vessels are currently in various stages of design and construction.

Alongside its thriving cruise newbuilding activities, Fincantieri has been busy in recent months with several significant vessel refit and upgrade projects. In September 2024, the company completed an important drydock project, including the overhaul of the davits and thruster, and the refurbishment of the laundry, on the Princess Cruises Island Princess. Then, from October to November, Fincantieri undertook a complex engine room overhaul aboard Caribbean Princess in Palermo. Additionally, it carried out mechanical work on the propulsion system, and significant engine maintenance for Costa Deliziosa in its Trieste yard. Then, towards the end of 2024, Fincantieri completed essential maintenance, and five-year class checks, for Virgin Voyages’ Scarlet Lady in Palermo.

Many of these cruise refit and repair projects have had a clear environmental focus. A notable example involved the installation of the advanced wastewater system for Silversea Cruises’ Silver Whisper in Trieste. Furthermore, on many projects, Fincantieri applied silicone paint to reduce friction, save fuel and make the vessels’ cruises more energy-efficient. Fincantieri also has a contract to implement high-voltage shore connection (HVSC) systems on four cruise ships to enable them to shut down their engines during port stays, and is carrying out engineering studies to assess the viability of retrofitting existing cruise vessels to run on methanol or HVO.

Now, Fincantieri seems set to enjoy another busy year for its cruise refit activities. In March and April 2025, it plans back-to-back drydockings of Majestic Princess and Emerald Princess, including five-year class special surveys, hull blasting and silicone painting, thruster and stabiliser overhauls, scrubber work, steel repairs and the installation of new air lubrication and membrane bioreactor systems. The work will also include Americans with Disabilities Act (ADA)-associated upgrades for cabins and public spaces. All of these work packages will be undertaken at Fincantieri’s Palermo shipyard.

In Q3 2025, MSC Lirica and Viking Sea will visit Fincantieri yards for special class survey renewals and planned maintenance activities, while, in November, Silver Muse will undergo a series of conversions and modifications, together with scheduled maintenance works, in Palermo.

Fincantieri is currently investing to enhance its logistics capabilities for cruise projects in Trieste and Palermo, with the aim of improving warehousing, materials handling, maintenance scheduling and transportation for both inbound and outbound logistics. These investments are expected to lead to greater operational efficiency, minimise waste and ensure timely deliveries for clients and suppliers. Additionally, the company is strengthening its Miami subsidiary, Fincantieri Services USA, to provide cruise operators with quick responses to their specific requirements, including ship inspections and onboard assistance for repair and refurbishment activities in North America.

Damen Shipyards Group has unveiled a new range of naval support vessels. The Logistics Support Ship (LSS) design consists of two vessel types, the LSS 9000 and LSS 11000, which are 127m and 140m in length respectively.

“The vessels will be equipped with NATO-standard replenishment-at-sea technology, and will have roll-on/roll-off capability and substantial cargo transportation capacity,” says Damen. They are designed to facilitate the efficient transfer and transport of fuel, munitions, provisions, personnel and other essential supplies, enabling fleets to remain operational during extended deployments.

Damen adds: “With a modular design, the LSS can be easily and rapidly configured and upgraded for special operational requirements, such as disaster relief, humanitarian assistance and training exercises.

“A key feature of the LSS is the ability to operate in diverse maritime environments, from the open ocean to littoral waters. This versatility arises from an advanced design and engineering process and the combination of both military and commercial technology, a combination that helps to reduce OPEX and CAPEX.”

In addition to operational efficiency, and in line with the ambitions of many navies, the LSS design has a focus on sustainability, with the vessels fitted with propulsions systems that will reduce fuel consumption and emissions.

Damen commercial manager for defence and security Piet van Rooij says: “We have developed the LSS based on discussions with our naval clients around the world. As such, we are confident they represent an appropriate response to the operational challenges they are facing, now and in the future. The LSS offers enhanced capabilities, efficiency and sustainability at a very competitive price.”

A report jointly issued by tech firm CORE POWER, marine insurer NorthStandard and class society Lloyd’s Register (LR) paints an optimistic picture for the safe development and installation of small nuclear reactors aboard commercial ships and floating nuclear power plants (FNPPs) in the UK – provided the government gets behind the effort.

The paper, entitled Advanced Maritime Nuclear: A Unique Opportunity for the UK, argues that the Department for Transport must incorporate nuclear-fuelled vessels and FNPPs into an updated version of its Clean Maritime Plan, to meet IMO greenhouse gas (GHG) emissions reduction targets and to benefit from a £2.5 trillion economic opportunity, potentially revitalising the UK shipbuilding segment.

Over the past five years, attitudes toward using nuclear energy as ship’s fuel have shifted significantly. Since the 1950s, nuclear reactors have powered multiple warships and submarines. However, the concept of installing small reactors aboard commercial vessels, such as ferries, cruise ships, OSVs or superyachts, was generally discounted, largely because of nuclear power’s ‘bad’ reputation.

However, rising energy costs, plus growing doubts about the accessibility of alternative fuels such as hydrogen, HVO, methanol and ammonia, have sparked new interest in nuclear energy for ships. A small but growing band of shipping professionals now view the deployment of small modular reactors aboard commercial vessels as one of the most likely means of meeting IMO’s plan to realise net-zero greenhouse gas emissions from international shipping by 2050.

Additionally, at COP 28, hosted in Dubai in 2023, the UK pledged to triple nuclear energy generation with the launch of its Civil Nuclear Roadmap to 2050 – a publication that included nuclear-fuelled ships on the agenda. In December 2022, the UK’s Merchant Shipping (Nuclear Ships) Regulations came into effect, accompanied by Marine Guidance Note on nuclear ships MGN 679 (M), which addresses areas such as safety assessments, design and construction, radiation safety and reactor installation suitability.

In the foreword to the recent joint paper, British hereditary peer and shipbroker Lord Mountevans writes: “The UK has the skills, expertise and history of innovation to lead the development of nuclear-powered shipping. By leveraging our decades of experience with small reactors for the Royal Navy, we can decarbonise maritime transport, create jobs and strengthen Britain’s position as a clean energy world power. This is a unique opportunity for the UK.”

The paper also proposes that nuclear-powered ships could feed energy back into land-based grids, providing electricity to homes and ports, as well as to areas affected by power blackouts. “FNPPs could also be used to alleviate the issues surrounding shore power and expensive connections to the UK national grid,” the authors state.

Outstanding insurance and regulatory gaps must also be addressed, though, the paper notes. Paul Jennings, MD of NorthStandard, comments: “The ability to commercially insure nuclear-propelled ships will be vital to the success of bringing nuclear to maritime. It is important that governments understand the need for a civil marine nuclear liability convention within the framework of IMO and work towards creating an appropriate liability regime.”

Jennings is echoed by Andy McKeran, LR’s chief commercial officer, who says: “Global regulatory alignment is crucial. Existing frameworks must be updated to reflect modern reactor designs and operational needs. The UK has the expertise to lead these efforts at IMO and with the International Atomic Energy Agency [IAEA], setting the foundation for safe, insurable and scalable nuclear-powered shipping.”

Meanwhile, CORE POWER CEO Mikal Bøe remarks: “Maritime nuclear is the catalyst that can reverse the trajectory of the British shipping sector, creating unique competition to Chinese shipbuilding and ocean transport.” He warns: “Over time, the cost of inaction will far outweigh the cost of being the champion in this rapidly emerging market.”

 

The March issue of The Naval Architect features an interview with pro-nuclear advocate Dr Jonathan Stephens, manager, core design at BWX Technologies, assessing the current and future viability of small reactor installations aboard various vessel types and FNPPs

The UK shipbuilding sector needs to address significant skills shortages in AI, robotics and automation if it is to thrive in the long term, a report from National Manufacturing Institute Scotland (NMIS) claims.

The report outlines the need to further adopt these three emerging technologies to enhance operations such as welding, joining and inspections in confined or hazardous spaces.

“The roles of some welders will evolve to combine traditional skills with expertise in new technologies and materials, as advanced technologies such as robotics and additive manufacturing are integrated into operations,” NMIS writes.

Greg Cranstoun, industry and skills engagement lead at NMIS, comments: “Scotland has a deep-rooted history of shipbuilding, particularly on the Clyde, but the challenges of a skills shortage apply to the whole of the UK.”

NMIS notes that, in 2022, shipbuilding contributed £3.1 billion to the UK economy, supporting more than 44,600 jobs. That year also marked the introduction of the National Shipbuilding Strategy, which has called for a 50% reduction in the UK sector’s skills shortage by 2030.

“We need to ensure we have the right people with the right skills lined up to meet demand,” says Cranstoun. “Technology is only going to become more prevalent as the adoption of AI and robotics increases in all sectors, and there are significant gains that could come from using advanced equipment to improve both health and safety and productivity in shipyards.

“Manufacturers need to think ahead to the types of roles this will create, and how to equip the current workforce and future employees with the skills to take this forward.”

As for how to get there, the report calls for a “collaborative approach between industry and training providers, to design programmes that prepare workers for these hybrid roles”. This approach would include the updating (and tailoring) of existing training courses for relevance, and the development of new training courses. Stakeholders should also drive new educational standards and targeted curricula while implementing short courses and continuous professional development (CPD) programmes to plug current knowledge and skills gaps.

The report also recommends the creation of new job descriptions, including (but not limited to): quality control inspector in shipbuilding; robotics integration engineer; welding engineer; industrial equipment maintenance technician; and robotics systems design and implementation engineer, for example. These newly defined roles should help manufacturers to evaluate gaps between existing roles and future requirements, the report opines.

NMIS, which is operated by the University of Strathclyde, collaborated with Innovate UK’s Workforce Foresighting Hub to produce the report, drawing on the latter’s advanced AI tools and workshop and survey findings to capture and analyse the data. NMIS adds that these collated insights could also be adopted and acted on by other sectors, including offshore wind and oil and gas.

Meanwhile, Mantas Lukauskas, self-styled ‘AI evangelist’ at neoxis.ai, says that the current “AI gold rush era” has accelerated developments in AI and machine learning to the extent that some companies may struggle to keep up with the pace of change.

“The more models appear, the harder it becomes to keep track of them all, let alone experiment and deploy them effectively,” Lukauskas says. “However, the multi-model ambitions quickly become technically and logistically complex.” He warns that the AI landscape “will only get more crowded” in the run-up to 2030.

Lukaskaus recommends weighing up considerations such as complexity, security and compliance, performance variance and cost before committing to new AI or machine-learning tech. The best solution may be to rely on a centralised platform that can speak to multiple providers via a single interface, he continues, adding: “The real competitive advantage is to stay nimble.”

Ulstein Design & Solutions has been contracted to provide the design for a heavy-lift ship for Japanese contractor Penta-Ocean Construction (POC). The vessel will specialise in offshore wind foundation installation work within the country’s waters, and will comprise a customised version of Ulstein’s HX118 design, which features a length of 215m, a 56m beam and a maximum draught of between 7.5-10m.

The customised design includes a tub-mounted, revolving, 5,000tonne-capacity Huisman main crane, permitting heavy-duty monopile installations. The crane comes with a main hoist and a universal quick connector, and has been designed with a compact tail swing, to optimise available deck space. Huisman will also supply the ship’s monopile-handling system, which features a motion-compensated pile gripper.

Ulstein has also incorporated its U-STERN concept into the vessel’s design. The U-STERN enables longitudinal storage of large components, such as monopiles, meaning these components can be stored along the length of the ship rather than across it, thereby maximising space and preventing overhanging.

When it’s time to install these components, the U-STERN enables them to be upended (lifted vertically) directly along the ship’s centreline. The U-STERN design also allows the ship to face directly into the waves during the installation process, reducing the impact of wave motion on the ship, to make the installation process smoother and safer – as well as to reduce fuel consumption by minimising the ship’s need to compensate for wave-induced movements.

Ulstein comments: “Combining the U-STERN with transverse and longitudinal skidding systems, offshore lifts for monopiles are eliminated as the main crane is only used to support the upending and lowering of the foundation.”

Both Ulstein and POC have been tweaking the ship’s basic design since summer 2024, including a round of extensive model tests. The heavy-lifter will be built by Singapore’s Seatrium Group, with completion scheduled for May 2028 and operations set to commence in the autumn of that year, Ulstein tells The Naval Architect.

The Bundestag and the Federal Government have agreed to exercise an option to procure four more Type 212CD submarines for the German Navy. The contract for the new submarines, which are being acquired by the German Navy and Royal Norwegian Navy under a joint programme, is one of the largest secured by thyssenkrupp Marine Systems.

The deal was initialled by the president of the Bundeswehr Procurement Agency, Annette Lehnigk-Emden, and thyssenkrupp Marine Systems CEO Oliver Burkhard in late December 2024. Germany will now build six Type 212CDs. Norway has also recently signalled its intention to increase the number of submarines it builds under the joint programme from four to six.

Speaking as that deal was confirmed, Burkhard said: “A turning point in history is finally arriving in the maritime sector. We are delighted at the trust that the German government has once again placed in us with the additional order. We are making a decisive contribution to Germany’s response to changing times and strengthening our defence capabilities with this strategically important project between Germany and Norway.”

The Type 212CD submarines will be significantly more capable than the German Navy’s existing Type 212A boats, with enhanced situational awareness, superior networking with allied units and a reduced signature.

In advance of the construction of the submarines, thyssenkrupp Marine Systems has invested more than €250 million at the company’s yard in Kiel, including a new shipbuilding hall. The group has also acquired additional shipyard capacity at the former MV Werften site in Wismar, to be able to build submarines and surface vessels there at the same time.

“Our order books are well-filled and we are strongly positioned nationally and internationally,” said Burkhard, noting that now that the number of Type 212CD submarines on order has been increased, other countries could join the project in the near future. “Our strong position has now become even stronger,” he concluded.

A team-up between boatbuilder/USV manufacturer Tuco Marine and maritime survey tech company EIVA aims to establish an all-in-one autonomous package for subsea asset inspections, matching a Tuco-built ProZero 8m Naval Intelligence USV to EIVA’s ViperFish remotely operated towed vehicle (ROTV).

In practice, the USV would sail to an area of interest, towing and remotely launching the ViperFish. The ViperFish would be equipped with sensors and survey software, and would undertake high-resolution seabed imaging, with area coverage rates of 1.6km2/hr,  while using magnetic signals to monitor subsea assets, such as power cables.

Jonas Pedersen, MD of Tuco Marine, comments: “By combining…our ProZero with EIVA’s ROTV, it’s possible to monitor the conditions of critical subsea infrastructure much more thoroughly and frequently than with conventional set-ups.”

Launched in 2023, the ViperFish measures 3,200mm x 1,300mm x 620mm and is rated for depths descending to 200m. The ROTV is designed for surveys at 2-10knots, and has a reported target positioning accuracy of 1m. EIVA suggests that, when integrated with an USV, the ViperFish can also be used for mine countermeasures, rapid environmental assessment, surveillance and salvage missions.

The commissioning this week of three frontline naval vessels by the Indian Navy marks a “significant milestone in India’s shipbuilding and design capabilities”, according to analytics firm GlobalData.

January 15 saw the entries of INS Surat (163m), the fourth and final unit of the Visakhapatnam class of stealth guided-missile destroyers; INS Nilgiri (149m), the lead ship of the Nilgiri class of stealth guided-missile frigates; and INS Vagsheer (67.5m), the sixth of six Kalvari-class diesel-electric submarines. The vessels were constructed by Mazagon Dock Shipbuilders Limited (MDL), Mumbai.

Rithik Rao, aerospace and defence analyst at GlobalData, writes: “Armed with advanced weaponry such as BrahMos and Barak 8 missiles, both INS Surat and INS Nilgiri provide the Indian Navy with enhanced anti-surface and anti-air warfare capabilities, excelling in both offensive and defensive roles.

“INS Vagsheer excels in a range of operations, including anti-surface and anti-submarine warfare, intelligence gathering and area surveillance. Together, these domestically built platforms demonstrate India’s growing competence in developing cutting-edge naval technologies, thereby strengthening its maritime security and reinforcing its strategic autonomy in defence production.”

Rao adds that India has felt the need to step up its naval defence capabilities due to “the increasing maritime presence” of the Chinese People’s Liberation Army Navy (PLA Navy) in the Indian Ocean Region. “[India] is trying to catch up with its Chinese counterparts in terms of quantity and technology advancements,” Rao says. GlobalData has forecast that India will spend just over US$35 billion on various domestically built naval vessels and subs in the run-up to 2029.

“Shipbuilders such as MDL stand to benefit significantly, leveraging the expertise gained from constructing complex naval platforms,” says Rao. “Such advancements will lay a strong foundation for future collaborations between major domestic defence contractors and many small and medium suppliers in upcoming next-generation submarine and naval vessel construction programmes, ensuring the Indian Navy remains well-equipped to meet evolving challenges in the upcoming decades.”

Speaking at the commissioning ceremony, Indian prime minister Narender Modi commented: “I am happy that our Navy has expanded the ‘Make In India’ campaign to a great extent. In the last 10 years, 33 ships and seven submarines have been inducted into the Indian Navy. Out of these 40 naval vessels, 39 have been built in Indian shipyards.

“Along with increasing the strength of the Indian armed forces, ‘Make In India’ is also opening new doors of economic progress. The shipbuilding ecosystem is an example. Experts also say that the more investment is made in shipbuilding, the more positive impact it has on the economy.”

The International Association of Classification Societies (IACS) has published a new recommendation, titled Rec. 182, to provide a “comprehensive framework” to support the adoption of onshore power supply (OPS) systems.

Rec. 182 was drawn up to provide “detailed guidance for ship designers, builders, operators and owners on integrating OPS systems into both newbuilds and retrofits, while addressing the technical and operational challenges associated with its implementation”, IACS states. The recommendation is intended to complement IMO’s MSC.1/Circ.1675 – Interim Guidelines on the Safe Operation of OPS Service in Port for Ships Engaged on International Voyages, IACS adds.

Subsequently, Rec. 182 outlines aspects such as: ship requirements for OPS; ship-to-shore connection protocols, with an emphasis on safe connection and disconnection; and testing procedures, for both the first connection and periodic check-ups. IACS states: “At the first call at a shore supply point, ships should undergo mandatory tests, including visual inspections, insulation resistance measurements, functional tests of protection devices and integration tests, to ensure proper operation between ship and shore installations.

“If the time between repeated port calls does not exceed 12 months and no modifications have been made, only limited verification tests are required. However, if the interval exceeds 12 months, comprehensive testing as outlined in the document should be conducted.”

Rec. 182 also covers operational safety measures, including the use of suitable PPE, plus ensuring “effective communication” between shipboard crew and shoreside personnel during connection/disconnection procedures. Documentation of OPS operation procedures – which would include circuit diagrams, compatibility assessments and emergency shutdown protocols – is also underscored in the recommendation, as is a pre-connection safety checklist.

IACS says: “The shift towards decarbonisation has placed a spotlight on reducing emissions from seagoing vessels while at ports, where vessels often rely on auxiliary engines that contribute to greenhouse gas [GHG] emissions. OPS, commonly referred to as ‘cold ironing’ or shore-to-ship power, has emerged as a promising solution, allowing vessels to connect to a land-based electrical grid while at berth, enabling their onboard generators to be switched off.” Cold ironing has been credited with significantly cuttting NOx and SOx emissions, plus particulate matter (PM) levels, in port areas, enabling the future development of sustainable ports.

Rec. 182 can be accessed at the IACS website.

Damen Shiprepair Oranjewerf is strengthening its commitment to green ship repair, maintenance, conversion and refit projects with a recent shore power installation. The yard had already installed a shore power unit which was suited to many of its projects. However, with this latest installation, developed by Elma Systems, the availability of clean onshore power, converted to 60Hz, has been widened to cover all types of vessel that call at the yard.

Commercial manager Jeen van der Werf explains: “Previously, we were able to provide shore power at 50Hz. However, we get a lot of offshore, navy and fishing vessels come to the yard for work, and many of these vessels operate on 60Hz.” As a result, he says, the yard often had to hire in a diesel-powered generator; something the company was keen to avoid.

Damen Shiprepair Oranjewerf began discussions with Elma Systems to address this issue. Together, the two companies set about the development of a solution that was more in tune with the yard’s needs, and Elma came up with a rotary convertor, which converts the shore power to the desired 60Hz rating.

The shore power system, which is installed on the yard’s floating dock, can support up to 250kVA. Should more power be required, there is an option to add a battery or secondary power source. The Elma-designed rotary converter is therefore also equipped with a load sharing system.

With this new shore power system now fully operational, Damen Shiprepair Oranjewerf expects to significantly reduce its carbon emissions. As an additional benefit, the wider use of shore power means that the yard no longer has to hire in costly diesel generators, and is, therefore, able to offer its clients a more competitively priced project.

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Somtrans' latest United bunker barge an international affair

December 2025 saw Belgian shipowner Somtrans christen its latest delivery, the estuary-class bunker barge United LNG I, in a ceremony hosted at the Port of Antwerp. The family-run company plans to put the barge into service in February 2026, where it will be used to fulfil growing demand for LNG bunkering in various Belgian and Dutch seaports, a spokesperson for Somtrans confirms.

The 135m x 21.46m vessel has been designed for both inland waterways and coastal service up to the Port of Zeebrugge. The barge’s construction was an international affair: the hull was built in China and then transported to the Netherlands for outfitting. Here, RensenDriessen, a shipyard-independent, Dutch newbuild projects specialist, acted as the main contractor, with Heusden-based TeamCo Shipyard overseeing tank integration, engineering and final outfitting of the vessel.

Italian engineering firm Gas and Heat, which specialises in designing and building cryogenic tank systems and LNG-fuel supply systems for maritime applications, supplied the barge’s eight cylindrical, single-walled Type C LNG tanks. Each LNG tank features a capacity of 1,000m3 and has been engineered to store this alt-fuel at -165°C, and with a boil-off rate of 0.30% per day.

The tanks are pressure-rated 400kPa. According to Somtrans, the tanks will remain closed during operations, monitored by pressure and temperature sensors, and will only require direct internal checks during the barge’s five-year class inspections. The vessel’s eight cargo pumps are each rated 165m3 per hour. The barge’s LNG bunker arm measures 25m in length and has a capacity of 920m3 per hour.

Somtrans says that the completion of United LNG I ndicates how the model of hull construction in China, followed by final outfitting in Western Europe, is becoming increasingly common in European shortsea shipping.

Wim Driessen, MD of RensenDriessen, comments: “By combining efficient hull construction in China with local outfitting in Western Europe, we are now offering our hull-building expertise more widely to the shortsea shipping segment. These cylindrical LNG tanks take this project into new territory: integrating them at this scale is unique. It shows what is possible when a shipowner, contractor and yard work as one team.” TeamCo Shipyard MD Marcel Zweers adds: “This was not a standard build. The LNG systems, the tank integration, the bunkering equipment, all demanded precision.”

United LNG I features a moulded depth of 7.5m and a draught of approximately 4m, and is arranged to accommodate a crew of six. Onboard tank capacities include: 5,113m3 of ballast water; 30m3 of fresh water; and approximately 39.7m3 of fuel oil, split between one fore tank (1.7m3) and two aft tanks (19m3 each). This latter arrangement reflects the positioning of the engines, which include four MAN Rollo LNG models, each rated 525kW, at the fore of the vessel and two 800kW diesel generators and a single 117kW auxiliary diesel generator at its aft. The barge also carries two battery packs, each rated 200kWh.

Propulsion-wise, the barge incorporates two main azimuth thrusters, rated 1,305kW apiece and featuring propeller diameters of 1,900mm. These are complemented by a pair of 550kW bow thrusters.

Somtrans is now expecting delivery of a second sister barge, also under build at TeamCo Shipyard, aligned to plans to extend its bunkering capacity within the Amsterdam-Rotterdam-Antwerp (ARA) region. “This comes as LNG bunker demand in Northwest Europe continues to expand, driven by new dual-fuel tonnage in the container, tanker, bulk, ro-ro and cruise segments,” the Somtrans spokesperson explains. “The global fleet of LNG-fuelled vessels continues to grow by double digits each year, driven by owners seeking cleaner operations and reliable access to alternative fuels.”

TeamCo Shipyard’s Zweers says that outfitting of the forthcoming sister, United LNG II, will commence in March 2026.

ZeroUSV's Oceanus17 USV builds on core values

Already under construction at Manor Marine, with a scheduled launch date of June 2026, the first Oceanus17 will “have a flavour of the military about it, but be very much a dual-role vessel,” Matthew Ratsey, founder and MD of ZeroUSV, says. “The feedback we’re getting from wind farm service operators is that they want to increasingly use remote-operated vehicles [ROVs], and the Oceanus17 can function as a ‘mothership’ to launch and recover ROVs, and as a ‘comms node’, tracking the ROVs’ positions when they are deployed – which has massive benefits in not losing a single ROV.”

Ratsey adds that ZeroUSV was recently approached by a company that manages the offshore facilities for several energy majors, with a view to using a fleet of USVs to deliver post and spares to these sites, as a cost-efficient alternative to expensive helicopter hire. This is a task the forthcoming Oceanus17 could easily handle given its aft deck payload capacity of 4tonnes, Ratsey points out.

Oceanus17 will comprise an all-aluminium, 16.97m x 3.17m monohull with the ability to maintain range for more than 50 days.

One of ZeroUSV’s goals was to “compress traditional defence acquisition timelines”, where the journey from design to prototype can roll on for years, Ratsey notes. So, for the Oceanus17, ZeroUSV chose to use a ‘spiral development process’, accelerating the design, engineering and build phase by basing the new model heavily on the Oceanus12 – essentially treating the existing USV as a ‘building block’ for the newer, bigger model.

Ratsey elaborates: “We’ve taken most of the core engineering we used for the Oceanus12 – what we know works and is reliable – and asked ourselves, what is the biggest vessel we can build with this engineering package? This includes the engines, the batteries, the battery chargers and the generators used in the Oceanus12 – we designed enough capacity into those components the first time around, we can reuse them in the Oceanus17.”

Another benefit of the spiral development process is that, by using the same components as the Oceanus12, end users can utilise the same spares packages with the newer model. USV familiarisation is another bonus. The biggest boon, though, from a USV manufacturer’s perspective, is perhaps the ability to speed up necessary certification. Ratsey explains: “The fact that we’re using 95% of the same equipment from the Oceanus12 on the Oceanus17 means that, when we come to enter the Maritime and Coastguard Agency [MCA] Workboat Code 3 process, all our current mitigations and submissions are transferrable – they just apply to a slightly larger version of the vessel.”

The Oceanus17’s payload bay will measure 9m x 2.8m, and will have the capacity to accommodate a 20’ container, with power and data connection points. The USV will also feature Starlink and Iridium connectivity and will incorporate an autonomous software package provided by ZeroUSV’s long-term partner Marine AI – rated to level 4 autonomy, but future-proofed for further upgrades. In addition to the boat’s primary sensors, customers will be able to select FLIR thermal IP cameras and W-band HD radar, among other options.

While Manor Marine puts the USV together, working with materials and components pre-issued by ZeroUSV, an independent contractor will oversee the boat’s electrical fit-out. If all goes to plan, the Oceanus17 will be launched in time for this year’s Seawork expo, to be hosted in Southampton, UK between 9-11 June. Then, in July, the boat will be certified by MECAL to meet the MCA Workboat Code 3, Annex II requirements for uncrewed vessels and unlimited operations.

The USV launch and recovery 'missing link'

Military and paramilitary vessels have long used stern-based launch and recovery systems for manned vessels, but how do you launch and recover a USV, and enable multiple USVs deployed in ‘swarms’ to operate truly independently of manned vessels?

These are some of the challenges Israel-based Sealartec and its founder Amitai Peleg set out to solve, as he tells The Naval Architect. Peleg and Sealartec business development director Dov Raz describe launch and recovery as the ‘missing piece’ in USV technology development, one that USV designers and builders – and manufacturers of recovery systems, such as stern ramps and davits – have failed to address.

Whilst working for a well-known company that designed and built high-end USVs, Peleg recognised that no-one was addressing launch and recovery. He began working on an autonomous solution, subsequently raising funds for an incubator programme. The launch and recovery concept he developed has now reached the point where Sealartec is collaborating with the US Navy, Israeli Navy and BAE Systems, Huntington Ingalls Industries, IAI and MARTAC among others, and its technology has been successfully tested in the US and elsewhere, most recently in June 2025 by the Naval Surface Warfare Center, using the Stiletto, a vessel that serves as a modular testbed for emerging technology.

“Without safe, reliable launch and recovery systems that can handle USVs in adverse conditions, use of USVs is going to be severely constrained,” says Peleg. Raz adds: “We knew there was a need for a system that would remove human operators from the process, that was fully autonomous. A conventional stern ramp used to launch and recover manned rigid-hull inflatable boats is heavily dependent on a human operator’s skill and is a risky, challenging process, but when used for USVs, their design limits quickly become a critical obstacle.”

Raz continues: “Dependence on direct hull-to-ramp contact exposes manned craft to relative motion effects, impact loads and control difficulties, especially in moderate to high sea states. When a large host vessel and a small craft interact in waves, their heave and pitch motions are out of phase. Fleets using conventional or extended stern ramps report increasing risk to boat and ship beyond sea state 3. At that point, the difference in vertical displacement between the mothership’s stern and the daughter craft’s bow often exceeds 2m, with relative pitch angles of over 10°. The result is an unpredictable recovery window and an increased likelihood of impact or loss of control.

“As vessel size increases, this phase mismatch worsens. Larger ship hulls have longer natural pitch periods, which means their stern moves differently than a smaller USV. In such cases, extending the ramp’s length or depth provides little improvement, and relative motion, not geometry, becomes the limiting factor.”

When recovering unmanned units, the consequences of these constraints become potentially serious, not least because of the impact forces from a USV on the hull of a mothership. Without any form of motion compensation, they say, a 10,000kg USV re-entering a launch platform at 5-10knots can generate vertical relative motion of over 2m/s, releasing enormous impact energy, sufficient to cause structural damage and damage sensors and electronics.

 

For the full story, check out the November/December 2025 issue of The Naval Architect

'ROC + Dock' project darts towards the wrap-up phase

A UK-based collaboration between USV developer HydroSurv, naval architect and designer BMT and South Devon College is nearing completion of a project set up to assess the benefits of electric USV operations in ports and harbours.

The ‘ROC + DOCK’ initiative has involved shoreside pilots remotely controlling South Devon College’s unmanned training vessel USV Dart – a 1.58m-long HydroSurv REAV-16 model, deployed on the River Dart—from a remote operations centre (ROC) on college grounds. Additionally, the partners have been trialling a remotely monitored, solar panel-equipped docking station, developed to recharge the USV with pure renewable energy – and all without manual intervention.

Funded through the Innovate UK Marine & Maritime Launchpad, the project aims to enable “true force multiplication of resident USVs operating across geographically separated coastal sites” while demonstrating “an integrated, end-to-end workflow that could transform how short-range environmental monitoring, inspection and surveillance missions are planned and executed – all from a centralised facility”, HydroSurv says.

ROC + DOCK commenced in early September, when the prototype docking station was deployed on the river. This station, designed internally by HydroSurv, is fitted with an automated mooring latch and has been designed to enable fully hands-off recovery of the USV, and recharging of its lithium-ion batteries. HydroSurv tells The Naval Architect: “The docking station’s power system is capable of charging [our] latest [2.5m-long] REAV-25 USV at up to 50A, to enable rapid replenishment. However, in practice, the USV will be recharged over longer periods when the vessel remains in the docking station for a few days at a time.”

At present, the docking station is designed for single-vessel support. HydroSurv adds: “The docking station control software is accessible to the vessel operator, providing the latching and unlatching system, monitored through a proximity sensor system. Charging is enabled through a contact charging system.”

Roc and Doc 2 - TNA - ND25

BMT’s Rembrandt simulator was integrated with HydroSurv’s vessel control software, enabling remote operator training and direct control of ‘USV Dart’

Back at the ROC, pilots remotely launched and navigated USV Dart by integrating HydroSurv’s vessel control software with BMT’s Rembrandt simulator – the latter tool more traditionally used for crewed vessel training. HydroSurv elaborates: “This capability – enabling operator training in a virtual environment that precisely replicates the vessel’s handling characteristics, before transitioning to live control – represents a significant advance in ROC design. It supports both the modernisation of maritime training syllabuses and the technical evolution of uncrewed operations facilities, with enhanced human factors and situational awareness at their core.

“Being a conventional vessel simulator, the spread is relational to the layout of a commercial vessel or workboat bridge, as opposed to more conventional screen layouts seen with remotely operated uncrewed vessel spreads.”

The River Dart trials have so far included water quality assessment missions involving pre-planned routes of up to 10km in line length from the docking station. These runs were based on standardised tasks from HydroSurv’s parallel ‘Smart Waters, Clean Ports’ project, launched last year, in which REAV-16 USVs transited rivers and estuaries around the ports of Dartmouth, Falmouth and Plymouth to assess local water pollution levels.

Summing up the USV Dart trials so far, HydroSurv states: “A two-person team can now execute multiple missions from a single facility, across dispersed coastal sites, without the need for local on-water support.” HydroSurv is now looking to further develop the integration between the USV and the Rembrandt simulator. This will likely include “enhancing the live view capabilities from an improved situational awareness spread, possibly with larger seagoing systems; and [evaluating] human factors for one-to-many USV supervision approaches”, the group says.

The docking station, meanwhile, will be honed to handle HydroSurv’s larger, seagoing USVs, “as part of an onward development roadmap”, HydroSurv adds. In November, as the project enters its final phase, the group aims to identify potential savings in terms of reduced crewing/support vessel costs and emissions through using the ROC, USV and docking station, compared with typical manned vessel set-ups.

Hybrid CSOV 'Windea Clausius' joins Bernhard Schulte Offshore fleet

Ulstein Verft has delivered Windea Clausius, the second in Bernhard Schulte Offshore’s new series of commissioning service operation vessels (CSOVs), writes Patrik Wheater. Windea Clausius and her sister Windea Curie, delivered in June, form part of an extensive newbuild programme that began in 2023. Hulls three and four are on schedule for delivery next year and will also enter service under the Windea Offshore joint venture, established to provide integrated logistics and operations support to wind farm developers in the North Sea and Baltic.

Built to Ulstein’s SX222 platform, unveiled in early 2021, the 2,200dwt Windea Clausius combines a methanol-ready hybrid diesel-electric propulsion plant with Ulstein’s hallmark TWIN X-STERN design, which allows the vessel to operate either bow- or stern-first. Ulstein says the novel hullform improves operability, lowers energy use and enhances comfort by reducing slamming and spray loads when holding position. The TWIN X-STERN – which evolved from Ulstein’s earlier X-STERN family introduced in 2015, and leverages on the success of its X-BOW design from 2004 – is awash with hydrodynamic refinements that include optimised propeller inflow to reduce underwater noise and vibration.

Speaking in 2021, Kolbjørn Moldskred, sales manager at Ulstein Design & Solutions, said: “It’s a completely different experience to be on board. It’s built to operate in strong currents and is less limited by weather conditions. TWIN X-STERN is in the same family as our other two revolutionary hulls, X-BOW and X-STERN, and provides similar benefits, just in a different set-up optimised for the offshore wind segment.”

With an overall length of 89.6m, a 19.2m beam and a draught of 5.9m, Windea Clausius’ hull was built at the Crist Shipyard before being towed to Ulstein Verft in Norway for the final phase, which included outfitting, paint work, electrical installation, equipment integration, commissioning and sea trial. The vessel is built for a service speed of about 10knots with propulsion provided by a Kongsberg Maritime package that integrates two main US 205 azimuth propellers fore and aft with a K-Power DC Hybrid solution, K-Chief EMS/IAS and K-Line control systems for smart energy management, fuel efficiency and optimal performance in dynamic positioning (DP) operations.

Electrical power to these and other consumers is through a hybrid battery-propulsion system, supplied by Everllence, which features a trio of methanol-ready MAN 175D-MEV (variable-speed) gensets, each rated 2.2MW and equipped with an integrated MAN closed-loop selective catalytic reduction (SCR) system to optimise emissions abatement. Indeed, Matthias Müller, Bernhard Schulte Offshore MD, said the engine design “is notable for its flexible use of various fuel grades, including biofuel, and its suitability for dual-fuel methanol retrofits”.

First-in-class Windea Curie represented the first reference for the engine which, when running on methanol, can cut CO2 emissions by up to 95%, NOx by up to 80%, and SOx and particulate matter completely. Complying with IMO Tier III NOₓ-emission standards, the hybrid arrangement is also claimed to deliver up to 10% fuel savings in typical North Sea service and reduce generator operating hours, cutting maintenance costs.

Øyvind Gjerde Kamsvåg, chief designer at Ulstein, said in 2021: “The key advantage of the hull is its ability to stay in position. The secret lies below the waterline. TWIN X-STERN has main propeller units at each end, which provide maximum manoeuvrability. The hull also provides major fuel savings; we have findings from the sister patent X-STERN, which show a reduction in power consumption of up to 60% when manoeuvring stern-first compared to flat transom stern.”

Equipped with a large, height-adjustable, centrally located walk-to-work gangway and elevator tower for personnel and cargo transfers, the vessel includes a 3D motion-compensated crane for offshore lifts of up to 5tonnes. Onboard logistics are optimised with spacious storage areas and stepless access to offshore installations.

While the hull’s symmetry and twin-ended propulsion allow the ship to weather-vane naturally, maintaining heading with minimal thrust and energy demand, the bridge layout follows Ulstein’s Insight Bridge concept, combining navigation, DP, crane and gangway operations in an ergonomic, 360° workspace that improves situational awareness during complex offshore manoeuvres.

Wind power for patrol boats? Ask the New Generation

Until now, aside from some short-sea/coastal shipping applications, wind-assisted propulsion systems (WAPS) have tended to be the domain of 100m+, oceangoing vessels, including tankers and large cargo ships. So, it’s something of a surprise to see WAPS technology being applied to a patrol boat, as is the case with the New Generation Maritime Affairs Patrol Vessel (PAMNG) project, spearheaded by French naval architecture and marine engineering firm MAURIC.

Officially announced in January 2025, the PAMNG’s first steel was cut in September at Socarenam’s shipyard in Boulogne-Sur-Mer, France. The concept is for a 53.7m-long boat with a steel hull and an aluminium superstructure, powered by a diesel-electric hybrid system and a deck-mounted Wisamo wingsail, manufactured and supplied by Michelin, and featuring a surface area of 170m2.  

Delivery to the owner, the French Directorate General for Maritime Affairs, Fisheries and Aquaculture (DGAMPA), is earmarked for the second half of 2027, and the vessel will operate primarily in the Bay of Biscay, undertaking missions including maritime fisheries surveillance, pollution monitoring, enforcing compliance with environmental regulations, search and rescue operations, anti-trafficking activities and protection of French national interests. The Bay’s challenging winds and waves should make it an ideal proving ground for wind-assisted propulsion tech in real-world enforcement scenarios. 

Combined with the diesel-electric powertrain, the wingsail will help the PAMNG to achieve a maximum speed of 17knots at 85% MCR – reduced to 10knots when the vessel operates on electric alone – and overall fuel savings in the region of 15%. The PAMNG will also feature an endurance of 3,600nm at 12knots, MAURIC says.  

The Wisamo includes a telescopic and retractable carbon-fibre mast, which can be lowered when the vessel enters port or passes under bridges. The wingsail is made of a light but strong fabric like a conventional boat’s sail, and fills with air at low pressure when the mast extends. A small fan blows in air to keep the wing’s shape smooth and even, while built-in sensors enable the wing to autonomously adjust its angle to capture the right amount of wind, providing more speed, saving fuel and reducing crew workload during long patrols. The PAMNG will also incorporate solar panels for auxiliary power, as well as an active trim control system to minimise energy consumption.

For this project, MAURIC conducted a detailed arrangement study for the vessel, including an ‘optimisation loop’ – an iterative computational process, used to simulate wind, speed, fuel use and stability to inform the best positioning for the sails for optimal performance. MAURIC says: “This phase also enabled the finalisation of active and passive stabilisation systems development, through seakeeping calculations carried out to optimise the anti-roll tank with free surface effects and active fin stabilisers.” Using CFD simulations, MAURIC then designed the boat’s bulbous bow to refine the hull’s hydrodynamic performance. “These CFD studies have optimised resistance through the water and defined the vessel’s active trim control system underway, confirming a hybrid cruising speed of 10knots and maximum speed exceeding 18knots,” the company says. “This configuration ensures the energy efficiency sought for this vessel with reduced environmental footprint.” Advanced modelling also predicted reduced drag in moderate seas.

The PAMNG has been arranged for a crew of 16 and four special forces personnel, and has an autonomy of 12 days – sufficient, MAURIC says, to guarantee sea patrols for up to 200 days annually. In addition to its crew complement, the vessel will carry a pair of 6.5m-long, semi-rigid boats, capable of 35knot intercepts.  

MAURIC’s previous forays into wind-assisted propulsion include the 136m x 24.2m, sail-powered ro-ro cargo vessel Neoliner Origin, which was launched by RMK Marine’s shipbuilding facility in Turkey earlier this year, and which made its first transatlantic voyage in October. 

Repurposed for surveillance

Recent incidents in which pipelines and subsea cables have been deliberately damaged have highlighted the need for European countries to protect offshore infrastructure, and for a new type of survey and surveillance vessel dedicated to monitoring the underwater environment in areas of sovereign interest.

A notable example of this kind of vessel is Proteus, which acts as a mothership for ROVs and a suite of specialist capabilities, but others are entering service. In the Netherlands, like the UK, the government plans to invest further in offshore wind farms and to acquire new-generation vessels to protect these assets, but, in the near-term, a solution is to be provided by a converted offshore vessel, following the result of a recent tender won by a team comprising ship designer and builder Damen Shipyards Group and marine geodata specialist Fugro.

Underwater surveys

Earlier in 2025, the Dutch Ministry of Defence contracted the Damen-Fugro team to enhance maritime surveillance and security – above and below water – in the country’s exclusive economic zone (EEZ). The solution proposed by the Dutch companies is based on the use of a Damen Fast Crew Supplier (FCS) 5009, a vessel acquired from the offshore market, which is being upgraded with a suite of surveillance technology and assets such as above- and below-water drones that will enable the Royal Netherlands Navy to monitor vessel activity in the North Sea and survey critical underwater infrastructure such as cables and pipelines.

Aircat on the attack

Singapore-based shipbuilder Strategic Marine has signed a memorandum of understanding with US-based Eureka Naval Craft to collaborate on the construction of the first Aircat Bengal MC Modular Attack Surface Craft. The vessel has been designed to operate in low-manning mode, or as an uncrewed surface vessel (USV), if required. Versions of the Aircraft Bengal MC could also be developed for use in the offshore oil and gas industry.

The Aircat Bengal MC uses a surface effect ship (SES) hullform, originally developed by Norwegian ship designer ESNA. An SES design has a catamaran hullform borne by a combination of an air cushion between the side hulls and the buoyancy of the hulls.

The partnership will use Eureka’s modular naval version of the SES design to deliver a new class of non-ITAR, dual-use vessels designed for both defence and civilian applications. Non-ITAR vessels are not subject to the America’s International Traffic in Arms Regulations, which control the export and import of defence-related equipment.

This means that the Aircat Bengal MC can respond to evolving requirements, such as the US Navy’s Modular Attack Surface Craft programme, and can fulfil the US Navy’s and allied nations’ requirements for optionally manned combatants. Its non-ITAR status and modular, dual-use design also make it ideal for rapid deployment and operational integration with US and partner forces, and the vessel’s high-speed, shallow[1]draught and modular payload system are optimised for littoral environments, key to Indo-Pacific naval defence and maritime security.

Nuclear ships: who pays the price?

The past few years have seen regulators warm to nuclear power’s potential, but a major challenge remains: persuading investors to fund nuclear-powered commercial ships.

This was the main theme of the roundtable Is Nuclear the Missing Piece in Maritime Decarbonisation?, hosted by classification society IRClass during London International Shipping Week in September. Gihan Ismail, director of shipping fund/asset manager and vessel operator Marine Capital, told delegates: “From a technical perspective, I’m sure we will get there, and it will probably not take decades. But the commercial viability of [nuclear] technology will take a lot longer. IMO has still to develop a comprehensive regulatory framework for nuclear ships, and this will take time.”

Part of the problem, Ismail emphasised, is that “shipping and nuclear are two areas where institutional investors are very reluctant to invest directly”. She continued: “As maritime insiders, we know the risks in our industry and how to manage them – but a financial investor who has no familiarity with our sector just sees, for example, Ever Given stuck in the Suez Canal. As a result, [investors] tend to ascribe a higher risk premium to shipping.

“Institutional investors are reluctant to invest in shipping because they don’t like the construction risk, or the ‘first of a kind’ technology risk, or the long lead times, because there’s then uncertainty over capital deployment and the risk return model. They are also unwilling to invest in nuclear, partly because nuclear energy development is complex and has pretty much always been tied to national security. The project lead time is very lengthy – typically 16 years from regulatory approval to construction – and it’s typically beset by significant cost overruns and delays.”

Ismail expanded: “[Investors] have an investment period in mind, which is not infinite, so the funds will often have a fund life of, say, seven to 12 years – and you can’t really invest in a project where you’re not getting to see any income or return come through until after your fund life. These things need to be overcome if we’re going to see investment in commercial nuclear vessels. Investors want to see that this works in a commercial setting; they won’t want to take any kind of operational risk where there is no commercial track record.”

Gihan Ismail, Marine Capital: “Investors must be convinced that nuclear energy actually is ‘green’… I think there’s been a great deal of ambiguity”

Anouskha Bachraz, director, transportation advisory at multinational banking and financial services company Société Générale, commented: “Banks are conservative – there’s always a little bit of apprehension when you’re transitioning to new fuels. Even when you’re trying to finance LNG or methanol, banks will raise questions like: ‘How will it work? How will you find the methanol? Where are the green corridors?’ Banking is probably going to be one of the last sectors to support nuclear being used on commercial vessels.”

Given the high costs of producing a commercial nuclear ship, adopting a leasing model for onboard small modular reactors (SMRs) could spread the upfront costs of nuclear technology over time, enabling smaller operators to adopt these reactors without massive capital investment. As Bachraz pointed out: “Right now, SMRs are expected to have a lifespan of 40-60 years, which is much longer than that of your average ship” – and their compact, modular nature means they could suit various vessel types, making it possible for one reactor to fuel a small yacht, a bulk carrier and a landing vessel in its lifespan, for example.

One concept with the potential to lure investors – and one that has become increasingly popular in recent years – is that of green shipping corridors. With more than 60 such corridors established worldwide, and more on the way, they seem to be a burgeoning trend. However, Ismail warned, relatively few of these corridors are operational. “These take a long time to set up because of all the additional stakeholders involved,” she said. “You’ve got the shipowners, the operators, the ports, the charterers, the banks and other financing entities…and they all have to come together and agree to bear the cost together. The very few [green corridors] that are operational are operational because there’s been some kind of government support that has underwritten some aspect of that which has enabled those parties to take those risks, bear that extra capex and have some kind of certainty that that capex is worth it.

“You’ve got to have charterers who are willing to enter into duration. It’s not as simple as two countries or two ports getting together to enable that.”

‘Is Nuclear the Missing Piece in Maritime Decarbonisation?’ was hosted by IRClass during London International Shipping Week

Inevitably, the discussion led to the public perception of nuclear energy, and how this alt-fuel’s pariah status may be scaring off investors. It’s easy to understand why nuclear power advocates become frustrated; nobody seems to be as concerned with, say, ammonia, which can cause blindness, severe burns, lung damage and explosions in an accident, and devastate aquatic ecosystems in the event of a spill. Then again, the public hasn’t been subjected to decades of books, movies, documentaries and songs about the horrors of ammonia.

Ismail said: “Nuclear is still regarded with a good deal of suspicion. Investors must be convinced that nuclear energy actually is ‘green’, and I think there’s been a great deal of ambiguity. For example, the EU has only included nuclear as a ‘transitional’ energy in its sustainable finance directive taxonomy in 2022, and the UK government doesn’t actually include nuclear in its green finance framework – although the Climate Bonds Initiative [CBI] accepts that nuclear does align with green principles – so you need to convince investors that they are actually investing in a green energy source.”

One driver of change might be the adoption of SMRs by ‘Big Tech’, Bachraz noted. “Amazon, Microsoft and Google all need higher levels of energy intensity to be able to power the data centres they need for AI,” she said. This could break the ice with some previously reluctant investors; Bachraz added that some banks are already showing interest in the feasibility of financing these data centre SMRs on an ongoing basis. “Once you have a framework for financing SMRs on land, you can develop a framework on the shipping side,” she said.

Which brought the panel to the point: can the shipping industry obtain the financing it needs to pull this off without government assistance? In Ismail’s opinion, it’s inescapable that government has “a very big role to play – not just in nuclear, but in the whole energy transition, because a lot of commercial hurdles are not going to be solved solely by the private sector or the commercial sector”. She continued: “We all know that the cost is huge, so government can’t fund it alone – but there are just certain risks the private sector will not take, or will be very unwilling to take. It’s not just the banks that are conservative – it’s also institutional equity investors.”

How drones are ramping up ship security fears

The threat posed to global maritime trade by rogue states and terrorists has not changed much over the past 10 years, but the tools they use have. Mines, missiles, IED-ladened skiffs and RIBs are being replaced by drones – and, in little over three years, the drone has evolved from a flying camera used to take ship pics into a mass-produced, inexpensive killing machine, writes Patrik Wheater.

The first time a drone was used to target shipping was in July 2021 when the tanker Mercer Street, managed by an Israeli-linked company, was struck off Oman by an unmanned aerial vehicle (UAV), killing two crew. A year later, Ukrainian forces were modifying jet skis into remote-controlled surface drones, packing them with explosives and steering them towards Russian naval targets. By late 2023, most of the attacks on ships in the Red Sea, especially round the Gulf of Aden, used drones.

Houthi rebels used drones alongside missiles in a string of attacks, including in the 2023 hijacking and seizure of the car carrier Galaxy Leader. In the same year, the product tanker Swan Atlantic was hit in the southern Red Sea, with a drone approaching from astern and damaging a freshwater tank. In April 2024 containership MSC Orion was targeted by a HESA Shahed 136 drone in the western Indian Ocean, and in July 2025 the bulker Magic Sea was damaged in a combined attack using drones and remote-controlled boats before being boarded and abandoned.

For Fredrik Preiholt, senior analyst at the Norwegian War Risk Club (DNK), these incidents indicate a shift in method rather than motive. “It is a new tool, not a new threat,” he says. “The actors who use drones against shipping have always targeted shipping. If they didn’t have drones they would have used something else. The danger is that drones are cheap, easy to access and increasingly reliable.” There are typically two types of drones: airborne UAVs and unmanned surface vehicles (USVs), which are essentially remote-controlled boats adapted from commercial jet skis or speedboats. UAVs are usually used for surveillance and intelligence gathering purposes, to assess target suitability for attack, but they can be developed, according to Preiholt, as “one-way kamikaze drones”.

At their crudest, commercial quadcopter drones have been adapted to drop grenades or mortar rounds. At their most sophisticated, Iranian-made Shahed drones, which cost between US$20,000-40,000 each, are now widely used by Russia in Ukraine and supplied to Houthis in Yemen. But crude line-of-sight USVs, such as speedboats packed with explosives, are also being used to target ships. These waterborne IEDs are the main weapon against merchant vessels navigating the Red Sea and Indian Ocean. “Houthi USVs are limited to line-of-sight control,” says Preiholt. “But the Ukrainian designs, with Starlink communication links and better payloads, are closer to cruise missiles.”

Although drone attacks are relatively new, agitators and terrorists can block important shipping lanes, disrupt global trade, cause terror and sink a US$100 million asset for as little as US$10,0000. By contrast, a guided missile can cost north of US$500,000. The drone has resulted in sea traffic around the Red Sea dropping by half since the Houthis 2023, according to DNK analysis.

“There is a psychological effect, but missiles are actually scarier because they come with no warning,” says Preiholt. “With drones, you at least see them coming, which gives you a chance to react. But the sight of a UAV circling overhead has a clear effect on crew morale.”

For DNK, which insures some 3,500 ships in the Norwegian fleet, the role is to provide intelligence and analysis rather than prescribe defences. “Good affiliation checks can help establish if the vessel is likely to be on any potential target list, and access to reliable intelligence is more important than expensive defensive technology,” Preiholt explains, going on to advocate employing private security companies.

Awards 2026


Nominate a colleague, a mentee or a friend for one of our prestiguous Naval Architecture Awards. Chosen by our Committees, the winners will be announced at our Annual Dinner attended by more than 300 maritime professionals, industry leaders and academics. Taking place on 28th May, this will be an evening of celebration at the historic De Vere Grand Connaught Rooms in London. 

Nominations deadline: on 31st December. Award categories include Innovation, Safety and Diversity.

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