Keeping up with changing needs of green ships

In an interview with Yasushi Seto, regional manager, Southeast Asia and Oceania, ClassNK, discussed the green forces driving decarbonization and the necessary precautions which need to evolve with the changing demands. 

ClassNK stands on firm principles: to contribute insight from the perspective of safety and environmental protection, as well as information on alternative design approval processes to enhance security for property at sea, and to protect the environment. The classification society believes commitment to decarbonization initiatives will build a stable and robust industry that is ahead of its transforming climate.

Headquartered in Japan, ClassNK on July 18 signed a Memorandum of Understanding with Maritime and Port Authority of Singapore, along with ITOCHU Corporation and Nihon Shipyard for a joint study on the design and safety specifications of ammonia-fueled ships, in preparation to carry out ammonia bunkering in Singapore for the future commercialization of ammonia-fueled ships.

What are the challenges in the design and construction of green ships?

As revised by the IMO GHG Reduction Strategy in 2023, the goal is to achieve zero GHG emissions from shipping by around 2050. However, the supply chain for zero-emission fuels is not yet sufficiently established, and each company needs to choose the best measures available at present and proceed with the transition to zero emissions. 

In response to this need, we have started a service called “ClassNK Transition Support Services” to support the transition to zero emissions, including the introduction of alternative fuels, fuel efficiency improvements, and CO2 capture devices. 

Furthermore, as part of this initiative, we have recently published “ClassNK Alternative Fuels Insight”, which introduces the features and latest trends of alternative fuels.

How has green progress transformed ship classification standards? 

In designs using new technologies, there are no precedents, and rule development, such as international rules, cannot keep up. Therefore, while comprehensive and detailed considerations are required for the design and its evaluation, it is necessary to shift from “reviewing the design” to “reviewing along with the design” to advance development logically and swiftly. 

In other words, we provide support by setting reasonable standards while running alongside the project initiation stage. We also contribute to society at large by developing rules based on the insights gained from these project engagements.

What will the industry need to meet these evolved standards?

Low flashpoint fuels like LNG, LPG, methanol and ethanol pose a fire risk if they leak inside a ship. On the other hand, alternative fuels other than LNG do not have specific provisions clarified in the Internet Governance Forum (IGF) code. 

Therefore, ClassNK has set guidelines to minimize risk, taking into consideration the characteristics of each fuel and the rules. By providing these safety requirements, we contribute towards promoting the adoption of new fuels.

How about considerations involving bunkering operations? 

Bunkering is part of the operation of alternative fuel ships, and ClassNK is participating in various projects that consider the operation of alternative fuel ships, including bunkering, to provide the necessary information to management companies quickly. 

We will also contribute to the composition of operational procedures in the Safety Management System (SMS). Furthermore, we are planning to provide e-learning for ship superintendents and crew members about alternative fuel ships.

Photo credit: ClassNK. Yasushi Seto, regional manager, Southeast Asia and Oceania, ClassNK.

The best maritime news and insights delivered to you.

subscribe maritime fairtrade

Here's what you can expect from us:

  • Event offers and discounts
  • News & key insights of the maritime industry
  • Expert analysis and opinions on corruption and more