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US' Alcoa, Australia's Equus ink 10-year gas sales deal

  • Market: Electricity, Metals, Natural gas
  • 14/08/26

Australian gas developer Equus Energy has signed a binding 10-year gas sales agreement (GSA) with global aluminium producer Alcoa to supply gas from the planned Equus project offshore Western Australia to Alcoa.

Equus will provide 50 TJ/d of gas to Alcoa, equivalent to 182PJ over the term of the deal, the company said on 14 August. Alcoa will use the supplies to power its expanding portfolio of Western Australia-based (WA) alumina refineries.

In return, Alcoa will provide advance payment of $30mn to complete a front-end engineering design (Feed) study for the Equus project in Western Australia's North West Shelf region.

The funding will cover project costs until it reaches a final investment decision (FID), Equus said. It did not specify a timeline for the FID.

Equus, which was known as Western Gas until December 2025, completed a pre-Feed study for the Equus project in May, confirming project design of 50 TJ/d of domestic gas, 2mn t/yr of LNG for export markets, and 12,000 b/d of condensate production over a 15-year project life.

The project will address a peak day gas supply shortfall in Western Australia and will represent 5pc of the Western Australian domestic gas market upon completion, Equus said.

Annual peak day gas demand in Western Australia is set to increase from 2026 by 36pc to 558 TJ/d in 2035 with the winter season recording the highest demand levels, according to the Australian Energy Market Operator's (Aemo) 2025 Western Australian Gas Statement of Opportunities. This is despite an expected decline in overall annual gas consumption over the same period due to increased large-scale wind and solar generation, Aemo said.

The deal with Alcoa will fully satisfy Equus' commitments under Western Australia's domestic gas reservation policy, the company said. The reservation policy mandates that Western Australia-based gas producers retain at least 15pc of production for sale in the domestic market over a project's life.

Alcoa operates the 30.5mn t/yr bauxite mine and the 4.2mn t/yr Pinjarra and 2.85mn t/yr Wagerup alumina refineries in Western Australia.

Alcoa bought most of Australian mining company South32's aluminium supply chain stakes in June, including the 37mn t/yr Worsley bauxite mine and 4.4mn t/yr Worsley alumina refinery in Western Asutralia.

Alcoa signed a three-year gas sales agreement with Australian independent Woodside Energy for 31.1PJ in June, which will begin in 2027. The company also secured a 10-year gas sales agreement with LNG operator Chevron in December 2024 for 130PJ, starting from 2028.

This has built on Alcoa's existing 10-year gas sales agreements with Chevron, ExxonMobil and Australian independent Warrego Energy for a total of 198PJ of gas to its alumina refineries in Western Australia, starting in 2024.


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