
The Ning Yuan Dian Kun can carry 740 containers and is powered by 19 MWh of batteries.
40% of all shipping is just to ship oil, gas and coal around. Roughly $42 billion per year is spent on maritime shipping fuels specifically to transport fossil fuels (coal, oil, and gas). https://qz.com/2113243/forty-percent-of-all-shipping-cargo-consists-of-fossil-fuels
Over half the world’s container fleet is under 3,000 TEUs (twenty-foot equivalent units – the industry’s standard measure), operating shorter, high-frequency routes between ports.
These are exactly the routes where batteries begin to make sense.
What’s nifty about the Ning Yuan Dian Kun is that its batteries are housed inside 10 standard shipping containers:
✅ The battery containers can be swapped in port
✅ Each container includes cooling, monitoring and fire suppression systems
✅ The ship automatically recognises and integrates new battery modules
This is electrification without the downtime for charging.
Studies suggest battery-powered ships can already compete economically on routes up to 1,000 km – and that range is expanding as batteries improve.
Beyond propulsion, up to 30% of ship fuel is burned simply to provide power while in port. Work is already underway in Europe, North America and China to reduce this pollution by plugging moored vessels into the grid. Source: https://www.bloomberg.com/opinion/articles/2026-02-17/the-ships-that-move-global-trade-are-going-electric