Alternative Fuels

ABS study: Shipping cannot afford to ignore vast potential offered by nuclear propulsion

Study carried out by Herbert Engineering for ABS finds adoption of advanced nuclear reactors onboard a boxship would eliminate the need for refuelling of it during its entire 25-year lifespan.

Published

3 years ago

July 27, 2023

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Classification society American Bureau of Shipping (ABS) on Monday (24 July) said together with Herbert Engineering Corp. (HEC), they have modelled modern nuclear propulsion systems on a 14,000 TEU container vessel and a 157k DWT Suezmax tanker in a study.

ABS commissioned HEC to carry out the study to explore the potential of advanced modern reactor technology for commercial marine propulsion. The study was designed to help industry better understand the feasibility and safety implications of nuclear propulsion and to support future development projects.

“The study, which involved input from leading nuclear reactor developers, modelled the impact of two, lead-cooled, 30MW fast reactors on the container carrier, found it would likely increase cargo capacity and operational speed, while eliminating the need for refuelling during its entire 25-year lifespan,” ABS said in a statement.

ABS study: Shipping cannot afford to ignore vast potential offered by nuclear propulsion

On the Suezmax vessel, the study found the addition of four, 5MW, heat-pipe microreactors, while decreasing cargo capacity, would raise operational speeds and only require refueling once during its 25-year life. Both concept vessels would emit zero CO2.

Christopher J. Wiernicki, ABS Chairman and CEO, said: “Our findings from this latest cutting-edge research underscore why the industry cannot afford to ignore the vast potential offered by nuclear propulsion both in terms of emissions reduction and operational efficiency.”

“A net-zero world is more easily realised through nuclear propulsion, and we are putting in place the foundations for that future today. Turning this into a practical reality will require significant public sector support and ABS is well placed to bring governments and industry together.”

“Advanced or small modular reactors address many of the issues traditionally associated with nuclear for commercial maritime use, with enhanced safety and efficiency, reduced cost and waste and proliferation prevention. Nevertheless, many questions need to be answered and it is critical that industry evaluate these technologies with a laser focus on safety.”

Robert Tagg, Senior Principal Naval Architect at HEC, said: “HEC is pleased to be able to support ABS and explore the practical application of nuclear power on board. This study is helping us to understand in detail both the potential of modern reactor technology and how this will affect the design and operation of future vessels.”

Manifold Times previously reported the U.S. Department of Energy (DOE) awarding ABS a contract to research barriers to the adoption of advanced nuclear propulsion on commercial vessels.

The DOE has also contracted ABS to support research into thermal-electric integration of a nuclear propulsion system on a commercial vessel being carried out by the University of Texas.

Photo credit: American Bureau of Shipping
Published: 27 July, 2023

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Alternative Fuels

MPA and MSC ink MoU to support adoption of alternative bunker fuels

MPA and MSC will explore new routes and services to strengthen connectivity, support the adoption of alternative marine fuels such as bio-LNG, and advance technologies to improve vessel energy efficiency.

Published

17 hours ago

June 4, 2026

Admin

MPA and MSC ink MoU to support adoption of alternative bunker fuels

The Maritime and Port Authority of Singapore (MPA) on Wednesday (3 June) said it signed a Memorandum of Understanding (MoU) with MSC Mediterranean Shipping Company to strengthen collaboration in maritime decarbonisation, digitalisation, innovation, and manpower development.

The MoU was signed on 25 May 2026 by Mr Ang Wee Keong, Chief Executive of MPA, and Mr Soren Toft, Chief Executive Officer of MSC.

The MoU underscores the shared commitment of MPA and MSC to foster a sustainable, digital, and future-ready maritime sector, while enhancing MSC’s operational and business activities in Singapore. This year also marks the 30th anniversary of MSC establishing its Asia Regional Office and local office in Singapore.

Under the MoU, MPA and MSC will explore new routes and services to strengthen connectivity, support the adoption of alternative marine fuels such as bio-LNG, and advance technologies to improve vessel energy efficiency and operational performance.

MPA and MSC will also collaborate on maritime digitalisation initiatives to improve operational efficiency, including streamlining vessel arrivals and port operations.

On manpower development, MSC will support internship and scholarship opportunities through Singapore Maritime Foundation’s Maritime Outreach Network (MaritimeONE) platform, an industry-led tripartite partnership comprising industry, government and institutes of higher learning that aims to raise awareness of the maritime industry and attract quality talent into the maritime sector.

Mr Ang Wee Keong, Chief Executive of MPA, said: “This partnership reflects the strong collaboration between MPA and MSC in driving sustainability and digitalisation in the maritime sector. By working together on decarbonisation, operational efficiency and talent development, we aim to strengthen Maritime Singapore’s position as a trusted and future-ready global maritime hub.”

Mr Soren Toft, Chief Executive Officer of MSC, said: “Singapore is a strategically important hub for MSC and a key gateway to the broader Asia region. As we mark 30 years in Singapore, this MOU reinforces our long-term commitment to strengthening our presence here. MSC and Singapore are closely aligned on the priorities shaping the future of global shipping, and we look forward to deepening this partnership to drive the continued growth and resilience of the maritime industry.”

Photo credit: Maritime and Port Authority of Singapore
Published: 4 June, 2026

Methanol

Seaspan and Hapag-Lloyd complete first of five methanol vessel retrofit

Following “Seaspan Yangtze”, the remaining vessels planned for retrofit under the methanol retrofit programme are “Seaspan Amazon”, “Seaspan Ganges”, “Seaspan Thames”, and “Seaspan Zambezi”.

Published

17 hours ago

June 4, 2026

Admin

Seaspan and Hapag-Lloyd complete first of five methanol vessel retrofit

Seaspan Corporation (Seaspan) and Hapag-Lloyd on Wednesday (3 June) announced the successful completion of the first of the five vessel conversions under their methanol retrofit programme with the delivery of Seaspan Yangtze.

From the early SAVER (Seaspan Action for Vessel Energy Reduction) programme to today’s CleanBlue initiative, Seaspan has committed over USD 230 USD million across 86 vessels, executing more than 550 efficiency and retrofit projects.

Following Seaspan Yangtze, the remaining vessels planned for retrofit under the programme are Seaspan Amazon, Seaspan Ganges, Seaspan Thames, and Seaspan Zambezi. Each retrofit is expected to reduce well-to-wake CO₂e emissions by approximately 30,000 to 50,000 metric tonnes per vessel annually when operating on low-carbon methanol, while also extending vessel lifespan and enhancing fuel flexibility.

“Decarbonisation is not just about building the fleet of tomorrow, it is also about unlocking the full potential of the fleet we have today. Retrofitting and upgrades on existing fleets play a practical, immediate, and economical role in accelerating shipping’s decarbonization journey,” said Bing Chen, Chairman, President and CEO of Seaspan.

“Project SAVER CleanBlue highlights Seaspan’s strong customer partnerships, deep technical expertise, and unique platform integrated with JV partners, such as WattSpan Maritime Technology, in executing complex and large-scale retrofit projects.”

“The successful conversion of the Seaspan Yangtze together with the planned retrofit of its four sister vessels is another important step on our ambitious path towards net-zero fleet operations by 2045,” said Silke Lehmköster, Managing Director, Fleet, Hapag-Lloyd.

“Together with Seaspan, we are demonstrating that retrofitting existing vessels for low-carbon methanol can be a practical way to reduce emissions in shipping.”

Photo credit: Seaspan
Published: 4 June, 2026

Nuclear

South Korean-led nuclear car carrier design secures LR backing

LR is working with HHI, KSOE, Hyundai Glovis, G- Marine Service and KAERI on a joint development project exploring an advanced small modular reactor (SMR) installation on a PCTC.

Published

17 hours ago

June 4, 2026

Admin

South Korean-led nuclear car carrier design secures LR backing

Classification society Lloyd’s Register (LR) on Tuesday (2 June) said it has teamed up with South Korean shipbuilding, marine services and nuclear research organisations to advance the development of a nuclear‑assisted car carrier concept.

LR is working with Hyundai Heavy Industries, Korea Shipbuilding & Offshore Engineering (KSOE), Hyundai Glovis, G- Marine Service and the Korea Atomic Energy Research Institute (KAERI) on a joint development project (JDP) exploring an advanced small modular reactor (SMR) installation on a pure car and truck carrier (PCTC).

The study focused on how a Molten Salt Reactor (MSR) could be physically and operationally integrated into a large vehicle carrier. Work examined the internal arrangement and segregation of the reactor system, shielding requirements, and the impact on cargo deck layout and vehicle capacity, alongside stability and trim implications linked to the reactor’s weight and positioning.

The partners also assessed propulsion system configuration and power delivery, as well as operational flexibility compared with conventionally fuelled PCTCs, where trade routes and port calls can be tightly constrained.

A key focus of the project has been safety. LR led hazard identification (HAZID) and preliminary risk assessment work, focusing on containment, onboard safety systems and potential operability constraints tied to nuclear technology at sea.

The partners will mark the project milestone with an Approval in Principle (AiP) granting ceremony on 2 June at the LR stand during Posidonia 2026.

Sung-Gu Park, President – North East Asia, Lloyd’s Register, said: “While nuclear propulsion is still at an early stage of development, this project shows the importance of building technical understanding now to support future progress.

“Establishing feasibility at concept stage is a valuable step forward, particularly in areas such as cargo optimisation, vessel stability and integrated safety design.”

Hong-Ryeul Ryu, CTO and Senior Executive Vice President at HD HHI, said: “With global environmental regulations becoming increasingly stringent and no definitive net-zero fuel yet available, SMR-powered ships can serve as a highly effective alternative, representing a pioneering next-generation maritime technology capable of complying with GHG emission regulations while allowing lifetime operation without refuelling, and HD HHI will remain at the forefront of sustainable maritime technology development.”

Photo credit: Lloyd’s Register
Published: 4 June, 2026