NYK Unveils Japan's Pioneer All-Electric Workboat 'e-Crea

Image Credits: NYK Line

In an exciting move for the maritime industry, Japan’s prominent shipping firm, NYK Line, has introduced e-Crea—the nation’s inaugural fully electric work vessel.

Unveiled on May 23, this innovative craft will enhance tugboat operations at the NYK Group’s Koyasu Shipyard in Yokohama City, Kanagawa Prefecture.

Constructed by Keihin Dock Co. Ltd., a subsidiary of NYK based in Yokohama, e-Crea stands out as Japan’s first vessel to operate solely on battery power without relying on diesel generators. This means it can run with zero carbon emissions while docked and during operations.

Measuring approximately 9 meters long and 3 meters wide with a depth of 1.7 meters, this compact vessel is designed to accommodate up to 14 crew members. Its clever design allows for all necessary operational equipment to fit within its limited space while performing tasks like assisting tugboats during docking maneuvers and facilitating movement around the shipyard.

image Credits: NYK Line

Creating e-Crea wasn’t without its hurdles. One critically important challenge was managing the weight of its battery modules and electric propulsion system—heavier than anticipated—which required strategic placement of heavy components and wiring to keep the vessel balanced for smooth sailing.

Another obstacle involved heat management from thes systems; engineers tackled this by integrating a water-cooling mechanism along with air ducts that effectively dissipate heat. Additionally, safety measures were enhanced thru fireproofing and gas protection modifications in the battery compartment.

One notable advantage of e-Crea is its quiet operation compared to traditional fuel-powered vessels—making for a more pleasant experience onboard. The name “e-Crea” cleverly combines “electricity” with “creare,” which means “to create” in Latin; interestingly enough,it sounds like “éclair,” reminiscent of that delightful French pastry!

NYK views this project as part of their broader commitment to decarbonization efforts while exploring next-gen fuels such as ammonia alongside other sustainable technologies.The insights gained from developing e-Crea will also inform future projects—including plans for a fully electric tugboat expected by December 2026.

The Japan craft Inspection Organization (JCI) has classified this pioneering vessel which remains under NYK’s ownership but is built and operated by Keihin Dock.

Reference: NYK Line