The world's largest all-electric container ship is now in service in Asia. COSCO's Greenwater 01 all-electric drive system will save four tons of diesel fuel for each hundred nautical miles.

Resources and links:

South China Morning Post, World's largest electric container ship starts service
https://www.scmp.com/news/china/scien...

Press release, COSCO Shipping
http://en.chi.coscoshipping.com/col/c...

The world's largest electric container ship
https://interestingengineering.com/in...