World first Compressed Hydrogen ship and zero carbon marine transport for hydrogen

Compressed Hydrogen Ship

A simple, energy efficient and zero emission solution

GEV’s proprietary Compressed Hydrogen ship is designed to store ambient temperature hydrogen at an operating pressure of 250 bar.

Scoping study confirms compressed hydrogen is a viable export carrier

Findings demonstrate GEV’s compressed hydrogen supply chain will be a competitive large-scale marine hydrogen transport solution up to 4,500 nautical miles

The purpose of the Scoping Study was to determine the competitive shipping range and technical feasibility of compressed hydrogen as a 100% green hydrogen supply chain. The study evaluated exporting green hydrogen from Australia to Asia Pacific markets, as compressed hydrogen (C-H2), Liquefied Hydrogen (LH2) and Ammonia (NH3).

Further details from the Company’s announcement, 1 March 2021 are available here

Martin Carolan, Managing Director & CEO: GEV is delighted with the results of the Scoping Study, which confirms the compressed hydrogen supply chain is very competitive for the marine transportation of hydrogen at 2,000 nautical miles and up to 4,500 nm. When compared to LH2 and NH3, we have demonstrated compression is the simplest, with minimal technical barriers to achieve commercialisation. GEV will now accelerate its plan to address key markets for green hydrogen, advancing ship engineering, approvals and defining our own green hydrogen export project in Australia to support the construction of a pilot scale ship.

HyEnergy Export feasibility study underway

The scope of the feasibility study will include the integration of the HyEnergy Project’s proposed green hydrogen production facility with an onshore compression facility and offshore terminal, as well as the operation of a fleet of compressed hydrogen ships for marine transport to nominated markets in the Asia Pacific region.


GEV is delighted to appoint a group of leading consultants with the specialist experience to assist with the completion of the Company’s first feasibility for hydrogen export using our proprietary marine supply chain. The HyEnergy Project is being positioned to be the first export project of green hydrogen from a greenfield site in Western Australia.

Roy Bleiberg, ABS Vice President, Regional Business Development, North America:  As the leader in gas carrier classification globally, we are proud to be able to support the pioneering work by GEV to develop hydrogen carriers with this AIP for their latest design for a pilot-scale compressed hydrogen ship

Benefits of the Compressed Hydrogen Supply Chain

  • Simplicity
  • Energy Efficiency
  • Cost Competitiveness
  • Minimal Technical Barriers

C-H2 Ship Specifications

  • The containment system consists of two tanks, with an operating pressure of 250 bar and combined capacity of 2,000 tonnes (full scale) or 430 tonnes (pilot scale) of hydrogen.
  • A stainless steel inner layer prevents embrittlement with multiple surrounding layers of ductile high-strength alloy steel to meet strength and fatigue requirements.
  • The advantage of multiple discrete layers is that should a crack form in one layer it will not naturally proceed through to the adjacent layer. This greatly improves the safety of the tank.

US Provisional Patent Filed

  • In December 2020, GEV filed a provisional US Patent application relating to multiple ideas that arose during the design of the apparatus for the marine storage and transport of hydrogen.
  • The inventor is GEV Canada’s Chief Technical Officer, John Fitzpatrick.
  • GEV will work on the detailed filing during 2021.
  • The Company has a successful track record of patent applications with two granted for CNG Optimum.

Class Approvals Program with ABS

  • In March 2021, GEV received ABS Approval in Principle (AIP) for the 2,000 tonne Compressed Hydrogen ship & containment system.
  • In October 2021, AIP was awarded for the pilot 430 tonne Compressed Hydrogen Ship
  • Receipt of AIP confirms there are no unresolvable or unmitigable risks to prevent further successful development.
  • The Company will now commence discussions with suitable shipyards for an external confirmation of capital cost and schedule for construction.
  • ABS has defined the roadmap for the next development phase, which will include further engineering and design work in parallel with prototype testing, with the target for Full Class Approvals by late 2022.

Expressions of Interest

For further information or expression of interest in GEV’s Compressed Hydrogen shipping solution, please contact [email protected]