PERTH, April 26, 2026, 22:03 (AWST)
Pilbara Minerals has signalled it is open to working with Fortescue Ltd on green power in Western Australia’s Pilbara, giving Andrew Forrest’s miner an early test of outside demand just days after Fortescue approved a US$680 million expansion of its renewable energy build-out. The new spending is aimed at a 200-megawatt Pilbara Green Energy Project for industrial users, including data centres.
The timing matters. Fortescue is trying to turn part of its decarbonisation push into an energy business, while AI-linked data centres are becoming a bigger source of electricity demand in Australia. Microsoft said on Thursday it would invest A$25 billion in Australian AI and cloud infrastructure by the end of 2029, a backdrop that helps explain why Fortescue is pitching “firmed” renewable power — renewable electricity backed by batteries or other support so supply is steadier when wind or sun drops. Source
Investors have not simply cheered the move. Fortescue shares fell 5.67% to A$19.78 when the ASX last traded on Friday, while larger iron ore peers BHP and Rio Tinto were little changed in comparison, local market data showed. With the Australian market closed on Sunday, that is the latest traded level.
Fortescue’s core iron ore business still did the heavy lifting. The company shipped 48.4 million tonnes in the March quarter, up 5% from a year earlier, and said nine-month shipments reached a record 148.7 million tonnes. It kept full-year shipment guidance at 195 million to 205 million tonnes, but cut Iron Bridge guidance to 9 million to 10 million tonnes from 10 million to 12 million after weather disruptions from Tropical Cyclones Mitchell and Narelle.
Costs remain in view. Fortescue reported a hematite C1 unit cost — a basic cash cost measure for producing iron ore — of US$18.29 per wet metric tonne in the quarter. The company said a US$10-per-barrel move in Brent crude would shift that cost by about US$0.20 per wet metric tonne, assuming other factors stay the same.
Metals and operations chief executive Dino Otranto said Fortescue was “getting on with decarbonising” its operations and cited energy security and lower costs as reasons for the build-out. He told analysts the new US$680 million project was “for the whole kit and kaboodle” — batteries, firming and use of the broader grid — and said the spend would sit outside the company’s existing US$6.2 billion decarbonisation envelope.
The project adds to Fortescue’s planned Pilbara Green Grid, which the company says will include 1.2 gigawatts of solar, 600 megawatts of wind, 4-5 gigawatt hours of battery storage and 620 kilometres of transmission lines by 2028. Fortescue says the green grid is designed to replace diesel and other fossil fuels in its mining operations, then be replicated or sold as a service to large energy users.
Forrest, Fortescue’s executive chairman, said the company was extending the model to “new customers, particularly data centres”. He said the aim was to give new industries a route to operate “fossil fuel free, cheaper and faster” than traditional alternatives. Global
Pilbara Minerals boss Dale Henderson told The Australian that PLS was “very open” to participating and had spoken with proponents including Fortescue. He praised Fortescue’s “courage and conviction” in trying to build a green grid in the region, where miners are heavy power users and grid infrastructure is sparse. The Australian
The competitive pressure is not only from other iron ore miners. Reuters reported this month that remote mining operations often rely on diesel generators, while major miners are turning to renewable power and battery storage to cut energy costs and emissions. Fortescue stands out for the speed of its 2030 “Real Zero” target, but the diesel problem is industry-wide. Reuters
The risk is straightforward: Fortescue has disclosed the capital outlay, but not binding customer contracts or detailed returns. Otranto told analysts it was “a bit too early” to say how the asset would be treated financially, though he called the opportunity a potential “significant value driver” for the stock. That leaves investors waiting for proof that data centres and other users will buy enough power at prices that justify another large capital program.
There is also execution risk in the mines. Fortescue is reviewing its Pilbara operations, including hematite and Iron Bridge, with port outload capacity and portfolio value under review; it expects to give an update in three months. For now, the company is asking the market to accept two things at once: the iron ore machine is still shipping at scale, and the next leg of growth may come from selling power in the same desert that made it an iron ore major.
