World’s Largest Pure Electric Intelligent Seagoing Vessel Secures CCS Certification

China Classification Society has completed the construction survey and certification of “Ningyuan Diankun,” describing it as the world’s largest pure electric intelligent seagoing vessel and China’s first high-end ship of its kind.

The vessel has been developed as part of China’s efforts toward greener shipping and advanced maritime technology.

It is owned by Ningbo Ocean Shipping Co., Ltd. and built by Jiangxi Shipbuilding Co., Ltd..

“Ningyuan Diankun” is a 740 TEU open-top container ship measuring 127.8 metres in length.

It is fitted with a twin-engine, twin-propeller configuration and can reach a top speed of 11.5 knots, placing it in the segment of short-sea and coastal container transport.

The ship runs entirely on electric power, supported by 10 containerised battery units that serve as its primary energy source.

It is designed to support both high-voltage shore power charging and rapid battery swapping, offering operational flexibility at ports.

A photovoltaic system has also been installed onboard to support energy generation.

According to CCS, these combined systems enable zero-emission operations.

The vessel is expected to reduce carbon dioxide emissions by around 1,462 tonnes annually compared with conventional fuel-powered ships of similar size.

Beyond its propulsion system, the vessel is equipped with advanced intelligent technologies.

It has received the CCS i-ship (M, No, I) intelligent ship notation, indicating a high level of onboard automation and system integration.

Its integrated platform allows real-time route optimisation, situational awareness, and continuous equipment monitoring, aimed at improving operational efficiency and vessel management.

During the project, CCS provided technical support, including design reviews and discussions on key engineering aspects.

The classification society’s involvement covered the full construction phase, ensuring compliance with safety and technical standards before delivery.

CCS stated that it will continue supporting the adoption of green and intelligent technologies in shipbuilding, as China works to modernise its shipping sector and reduce emissions across maritime operations.

Reference: CCS