Strandline Resources says it has taken another important step towards development of its Coburn mineral sands project in Western Australia by appointing Contract Power Australia as preferred contractor to build, own and operate (BOO) the power generation facilities for the project.

Coburn’s purpose-designed power infrastructure is based on a low-cost, low-emission solution integrating natural gas fuelled generation with solar and battery storage technology.

The proposed power solution enables Strandline to capture energy supply cost savings relative to the definitive feasibility study published in June 2020, it said.

Contract Power, a wholly-owned subsidiary of Pacific Energy Ltd, specialises in turnkey design, installation and operation of energy assets and has a strong track record of delivery in the mining sector of Western Australia, Strandline says.

Coburn’s power station will be located near the mineral separation plant. The power station is designed for a maximum demand capacity of 16 MW and average consumed power of circa-10 MW. Natural gas will be supplied by others under an industry standard long-term LNG supply agreement and trucked to an on-site storage and re-vapourisation facility supplied by Contract Power (Contract Power’s typical LNG-fuelled power station build layout, pictured), according to Strandline. The LNG then feeds a set of engine generators on an N+1 basis and has circa-30% solar penetration for the major stable loads. Generation is at 11 kV with step up to 22 kV for power transmission to the project loads across the mine site, Strandline says.

As preferred contractor, the parties will now compile final contract documentation to the satisfaction of Strandline and Coburn’s lenders. The contract is based on a 15-year BOO (and maintain) commercial model with fixed and variable payment regime for power consumed over the term.

This appointment follows Strandline’s recent A$18.5 million ($13.1 million) equity raising to advance early works development activities while finalising the balance of project funding. Strandline says it continues to make strong progress towards definitive finance documentation and conditions precedent for the NAIF A$150 million loan facility and is advancing discussions to secure a commercial debt tranche expected to stand alongside the NAIF funding.

Since raising the A$18.5 million, Strandline has appointed Macmahon as the principal contractor to provide site-wide civil and bulk earthworks construction services for the project, instructed Piacentini & Son to design and construct three mobile dozer mining units for Coburn and awarded preferred EPC status to Primero Group for the mineral sands asset.

Strandline Managing Director, Luke Graham, said the appointment marked another key step in its strategy to bring Coburn into production and establishes an important relationship with Contract Power, a leader in sustainable clean energy generation in Western Australia.

Coburn has a JORC compliant mineral resource of 1,600 Mt at 1.2% total heavy mineral (THM), classified as 119 Mt measured, 607 Mt indicated, and 880 Mt inferred. The ore reserve comes in at 523 Mt grading 1.11% THM for circa-5.8 Mt of contained heavy mineral, underpinning an initial mine life of 22.5 years at a mining rate of 23.4 Mt/y.