Perth, WA – Fortescue has officially commenced construction on its 690 MW Turner River solar farm and a substantial 74 MW/650 MWh battery energy storage system (BESS) at its Cloudbreak mine site in Western Australia. This significant undertaking, announced this week, represents a critical phase in the mining giant’s ambitious “Pilbara Green Grid” initiative, aimed at achieving “real zero” decarbonisation of its iron ore operations by 2030.
The commencement of construction for the Turner River solar farm, located approximately 120 kilometres south of Port Hedland, positions it to become Australia’s largest solar farm operating outside the national electricity market. This development, alongside the Cloudbreak BESS, underscores a tangible shift by heavy industry towards large-scale, integrated renewable energy solutions to power their operations.
Fortescue Metals and Operations Chief Executive Officer, Dino Otranto, highlighted the company’s proactive approach:
“While others are still debating whether decarbonisation is possible, Fortescue is getting on with building what’s needed to do it. 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.”
Pilbara Green Grid: A Blueprint for Industrial Decarbonisation
The Turner River solar farm is projected to utilise over one million solar panels, contributing significantly to Fortescue’s goal of accumulating more than 1.4 GW of total photovoltaic (PV) capacity within its Pilbara operations. This network extends beyond the newly commenced projects, integrating existing and under-construction assets including a 190 MW solar farm nearing completion at Cloudbreak, the 440 MW Solomon Airport solar farm, and the 100 MW North Star Junction solar farm.
In addition to solar generation, the Pilbara Green Grid is designed to incorporate over 600 MW of wind generation and up to 5 GWh of battery energy storage. This extensive infrastructure is connected by more than 480 kilometres of high-voltage transmission lines, with plans to expand this to over 620 kilometres by 2028. The entire system is engineered to operate as an islanded network, independent of Australia’s main electricity grid.
Strategic Investment in Storage and Supply Chain
The 74 MW/650 MWh battery energy storage system at Cloudbreak is a critical component, providing stability and dispatchable power to Fortescue’s operations. The battery cells for this project are being supplied by BYD, with LONGi providing the solar panels for the Turner River facility, and Envision Energy slated to supply wind turbines for future wind generation components.
This integrated approach to renewable energy generation and storage is designed to directly replace diesel and gas consumption in Fortescue’s mining, rail, and port operations. The company anticipates completing the construction of its green grid by 2028, with the full electrification of its mobile mining fleet targeted by 2030. Progress is already visible, with 16 electric excavators and an electric drill currently operational across its iron ore sites, and expectations for approximately half of its 70-strong excavator fleet to be electric by the end of 2026.
Broader Implications for Australia’s Energy Transition
Fortescue’s substantial investment in its Pilbara Green Grid exemplifies the potential for large-scale industrial players to drive significant renewable energy uptake. While this project is off-grid, the principles of integrating diverse renewable sources with substantial battery storage are directly applicable to strengthening the broader National Electricity Market (NEM). Understanding the economic drivers behind such large-scale battery deployments can offer insights for residential consumers considering home energy storage. For more on this, see our guide on What is the Real Payback Period for a Solar and Home Battery System in Australia 2026?.
The scale of the Turner River solar farm also highlights the ever-increasing capacity of solar PV technology. For homeowners looking to understand system sizing for their own needs, resources like Your 2026 Guide: What Size Solar System Do I Need & How Much Will It Cost in Australia? provide valuable context. The transition to renewable power for heavy industry demonstrates how strategic investments can not only meet decarbonisation targets but also enhance energy independence and operational resilience.
This project represents a significant private sector commitment to Australia’s clean energy future, showcasing how large-scale solar and battery storage are becoming foundational elements for industrial operations seeking to reduce their environmental footprint and secure long-term energy supply. The successful deployment and operation of such a vast off-grid renewable network could serve as a model for other energy-intensive industries both domestically and internationally.
Project Overview
| Project Component | Capacity | Location | Status | Completion Target |
|---|---|---|---|---|
| Turner River Solar Farm | 690 MW | Pilbara, WA | Construction Started | 2028 |
| Cloudbreak BESS | 74 MW / 650 MWh | Cloudbreak Mine, WA | Installation Started | FY2027 |
| Cloudbreak Solar Farm | 190 MW | Cloudbreak Mine, WA | Nearing Completion | N/A |
| Solomon Airport Solar Farm | 440 MW | Pilbara, WA | Under Construction | N/A |
| North Star Junction Solar Farm | 100 MW | Pilbara, WA | Operational | N/A |
| Pilbara Green Grid Total PV | >1.4 GW | Pilbara, WA | Under Development | 2028 |
| Pilbara Green Grid Total BESS | Up to 5 GWh | Pilbara, WA | Under Development | 2028 |
This comprehensive approach to integrating renewables and storage is crucial for managing demand fluctuations and ensuring reliable power delivery, a challenge also faced by residential consumers aiming to reduce peak demand charges. For residential strategies, consider How to Avoid Peak Demand Charges and Slash Your Time-of-Use Electricity Bills in Australia in 2026. Fortescue’s Pilbara Green Grid is a tangible demonstration of Australia’s accelerating transition towards a decarbonised economy.