Alinta eyeing 1GW Spinifex Offshore Wind Farm

offshore wind farm (AGL)
Image: Nicholas Doherty/Unsplash, FAL

Alinta Energy has signalled the potential for a 1GW offshore wind farm to be established around 10km off the coast of Portland in south-western Victoria, that could supply the Portland Aluminium Smelter and east coast electricity grid.

Alinta says Spinifex Offshore Wind Farm would connect to the grid via the smelter and would make the site among Australia’s first smelters to be powered by up to 100 per cent renewables. 

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Up to $4 billion of investment would generate new wind farm construction and operation jobs and help secure jobs at the site.

Alinta Energy head of project development Kris Lynch said the next steps would be conducting wind monitoring, site surveys and kicking off consultation in the new year.

“Existing data suggest Portland Bay has an excellent wind resource that would be suitable to power offshore wind turbines. What we’re doing now is deploying monitoring equipment to ensure that’s also the case across the investigation area,” Lynch said.

“The area we’re investigating is around 500sq km and about 10km from the shoreline, and the great thing about this proposal is that we can connect to the grid via the smelter and won’t need to build new powerlines on private land.

“We think the wind farm would need to be around 1GW to be viable.

“We also know the area has environmental, commercial and recreational uses and values that need to be thoroughly investigated and discussed, and we intend to kick off a more regular series of updates and discussions in the first half of 2022.

“We’re sharing the news at this early stage because we want to be able to speak openly with everyone as our initial investigations progress,” he said.

The project specifics—where turbines will go and how big they’ll be—are yet to be decided and will be informed by environmental studies, the available technology and cost, site investigations, approvals processes and consultation with the community and experts.

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Portland Aluminium Smelter manager Ron Jorgensen said the exciting proposal aligned with the aluminium industry’s direction to decarbonise, and had the potential to further improve the long-term viability of the Portland smelter.

“This proposal offers an ability to make a step change impact to Portland Aluminium’s carbon footprint and we welcome the opportunity to be involved in supporting the early phase of investigations of this exciting renewable project on the Australian energy landscape,” he said.

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