Fortescue begins construction on 690MW solar farm in Pilbara

Fortescue (ASX: FMG) has begun construction on the 690MW Turner River solar farm in the Pilbara region, as well as the 650MWh battery energy storage system (BESS) at its flagship Cloudbreak mine.

These projects form part of Fortescue’s rapidly expanding integrated renewable energy ecosystem to power its Pilbara operations, the Australian iron ore miner said in a press release on Monday.

According to Fortescue, the Turner River solar farm represents the final solar installation required to deliver the company’s Real Zero decarbonization plan. Once complete and combined with the Solomon Airport (440MW), Cloudbreak (190MW) and North Star Junction (100MW) solar farms, Fortescue will have delivered all solar generation required to achieve Real Zero across its terrestrial iron ore operations.

Together, the projects will generate more than 1.4GW of renewable energy capacity – enough to power around half a million Australian homes, the company said. Construction of the Turner River solar farm is expected to be complete in 2028, with over 1 million solar panels to be installed during the build.

Meanwhile, the Cloudbreak BESS is targeted for completion in the 2027 fiscal year, delivering 74MW of power for a period of approximately eight hours. The system is expected to comprise 124 battery units integrated directly into the Cloudbreak solar farm.

Fortescue also completed commissioning of two battery energy storage systems at Eliwana and North Star Junction, strengthening the delivery of firm renewable power across its Pilbara operations.

Fleet electrification

At the same time, Fortescue is rapidly electrifying its mobile mining fleet, with 16 electric excavators and an electric drill already operating across its iron ore operations. Around half of the company’s excavator fleet will be electric by the end of 2026, it said.

Fortescue’s first battery electric haul truck is also expected to be operational before the end of the year. Its first in-house developed 6MW fast charger has commenced commissioning and will support the rollout of battery electric haul trucks across the Pilbara, the company said, adding that the charger will be capable of fully charging a haul truck in approximately 30 minutes.

Facility testing of XCMG’s prototype battery electric wheel loader, dozer, grader and water cart is also in the final stages, with the equipment preparing to make the journey from China to the Pilbara for site testing, it added.

Decarbonization efforts

“While others are still debating whether decarbonization is possible, Fortescue is getting on with building what’s needed to do it,” Fortescue’s metals and operations CEO Dino Otranto said in a news release.

“The technology is here. The economics are improving every year. And anyone watching global fuel markets can see exactly why electrification and renewable power matter more than ever.”

Construction also continues on the 133MW Nullagine wind farm, which will further diversify Fortescue’s renewable energy mix, the company noted.

Fortescue has already constructed more than 480 kilometres of high-voltage transmission infrastructure across the Pilbara. Once complete, the network is expected to extend beyond 620 kilometres, physically connecting Fortescue’s renewable energy assets to its mines, rail and port operations.

“Our solar farms, transmission lines, wind generation and batteries are being built right now across the Pilbara. We are moving first because the economics, the technology and the national interest are all pointing in the same direction,” Otranto said.