The Study demonstrated the use of an offshore loading solution for compressed hydrogen can accelerate the development of greenfield hydrogen export projects with minimal technical barriers and smaller environmental footprints. A proposed offshore loading terminal will utilise a Single Anchor Loading (SAL) for loading of GH2 carriers. The design of the SAL is by APL NOV, who has delivered and commissioned similar technologies to the offshore oil and gas industry for over 30 years. The proprietary system provides high operability limits, allowing connection and loading to take place at a significant wave height of 3.5 m.

An initial hazard identification and environmental impact identification assessment was undertaken and indicates there are no significant constraints that should prevent the Study from progressing into the next stage of design and development.

Cost estimates developed from the technical workstreams were consolidated into a commercial model to evaluate the levelised cost of hydrogen (LCOH). The modelling indicates the LCOH for compression, pipeline, loading and unloading terminal, fleet of Provaris’ H2Neo carriers and delivery to Singapore is USD 2.48 per kg (NOTE: this figure excludes the cost of the hydrogen based on annualised production of 200,000 tonnes).

Optimisation activities have been identified to further mature the Study outcomes, including the use of Provaris’ larger-scale 120,000 m3 H2Max carrier which is expected improve the LCOH for transport.

The Study was supported by a consortium of specialist consultants selected by Provaris including: WSP, Oropesa, APL NOV, Environmental Resources Management (ERM), Turner & Townsend, Paaras Marine Solutions, and GHD.

The Compressed Hydrogen Export Feasibility Study Public Sharing Report is made available by the WA Government. Read the full report here.

This Study received funding from the Renewable Hydrogen Fund as part of the Western Australian Government’s Renewable Hydrogen Strategy.