A hydrogen ship is one that uses hydrogen for chemical transformation as its energy source for propulsion.

Our ambition will be to create ships without CO2 emissions, the objective being to favour the emergence of cleaner energy sources which are more sustaining and to eliminate polluants. Electric propulsion ships function thanks to clean energy.

For the last 5 years, Navalu has been investing to integrate the production of zero emissions to propel the ships it builds.

Having acquired the experience of integrating clean propulsion of its ships, Navalu works in partnership with its clients on the needs of zero emission vessels:


  • Shellfish barges
  • River passenger ships
  • Freight ships
  • CTV (Crew Transfer Vessel)

F.A.Q. Hydrogen ship

Why build ships out of aluminium?

Aluminium is a high-quality material which is 100% recyclable. It respects the welding protocol with a clean and attractive finishing. It’s also a material which resists corrosion.

What are the main advantages of hydrogen ships?

  • Zero emission = Clean propulsion
  • Custom made
  • Light weight and solid

What are the characteristics of Navibus?

  • Length: 10.40m (over 11 yds.)
  • Width: 3.80m (over 4 yds.)
  • Draught: 0.53m (over ½ yd.)
  • Navigation: on the Erdre River
  • Form of hull: Float
  • Capacity: 25 passengers
  • Material: Aluminium
  • Access: Accessible from PMR
  • H2 integration tanks: Installation and integration
  • Storage: 10kg (over 22 lbs.) maximum
  • Propulsion: Hydrogen (installation and integration of the system)
  • Battery: fuel-based 2x5kw
  • Regulations: Follow-up on National (DDTM) and European (CCNR) certification

What is the time frame for building a hydrogen ship?

The time frame for building a hydrogen ship can vary between 9 and 18 months depending on the dimensions and the equipment requested when the order is placed.