Arrowsmith Hydrogen Project – HP1
Arrowsmith Hydrogen Project – HP1
A renewable hydrogen production facility is planned to be built in stages at Arrowsmith, near Dongara, in Western Australia with a focus on supplying hydrogen for mobility purposes, with power use options also under examination.
| Main proponents:
Infinite Green Energy Ltd |
Main end-use classification:
Hydrogen mobility targeting heavy haulage vehicles |
Status:
Under development – the project is focussed on domestic Australia markets with production anticipated to commence in late 2027-2028 |
Estimated cost:
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| Other involvement:
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Production details:
23 tonnes per day hydrogen production capacity – Stage I, with expansion up to 42 tonnes per day capacity in its current design – Stage II |
Location:
Western Australia, Australia |
Announced funding:
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Project description
The Arrowsmith Hydrogen Project – HP1, being developed by Infinite Green Energy, in its current design would have capacity to produce up to 42 tonnes (42,000 kilograms) per day of renewables-based hydrogen to supply domestic Australian markets. The plant would be located in Arrowsmith, approximately 30 kilometres south of Dongara in Western Australia (or approximately 290 kilometres north of Perth).
The project proponent submitted its environmental impact assessment to the Western Australia Environmental Protection Authority (EPA) in mid-2022, with a final 2-week public consultation period scheduled for early April 2025. Key features of the Referrals include:
- solar farm (minimum 65 MW to maximum 85 MW generation capacity)
- wind turbines up to a maximum of 130 MW
- water supply (groundwater from deep aquifer)
- hydrogen production plant (maximum production output at 23 tonnes per day for Stage I, and up to 42 tonnes per day for Stage II)
- liquified hydrogen storage and offloading facility
Once commissioned, the plant would produce liquified hydrogen utilising site ground water with the final product (liquid hydrogen) transported via hydrogen fuelled road tankers to end users.
The project proponent has recently updated its site layout, including repositioning of some wind turbines to further reduce environmental impact. The Heritage report has also been updated with the involvement of local Indigenous groups. The EPA is in the final stage of review before giving approval. The proponent is also finalising its development application which will be lodged through the Significant Development pathway immediately after EPA approval.
The project is expected to come online in late 2027-2028 and would serve the domestic Western Australian energy and transport markets. The proponent is in discussions with trucking OEM’s to deliver trucks for its domestic business.
The Front-End Engineering and Design (FEED) study was undertaken by Petrofac and completed in mid-2021.Engineering detailed design is ongoing.
The Arrowsmith facility includes a 100 MW Alkaline electrolyser facility and a 40 tonne per day liquefaction system.
The hydrogen would be distributed across a dedicated network from Perth to Port Headland allowing road-trains to refuel around every 700 kilometres. These stations will be liquid hydrogen in design allowing refuelling of gaseous and liquid hydrogen trucks.
The project proponent advises it is in the final stages of discussions in finalising strategic partners for the Arrowsmith development: final Term Sheets are out, and the project proponent is looking to announce strategic partners for Arrowsmith development, including expansion potential.
The project proponent has advised that as part of the long-term development, it has an option to export green ammonia from its site where additional land is being optioned.
The project proponent has advised that the project has obtained Lead Agency status from the Western Australian Department of Jobs, Tourism, Science and Innovation.
In April 2025, media reporting has indicated that Infinite Green Energy has entered administration. As at time of media reporting, the project proponent has advised that both the Arrowsmith Hydrogen Project – HP1 and Early Production System: MEG-HP1project approvals are continuing as planned.
Reviewed: April 2025