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Australian large-scale solar plants produced 5,100 GWh of clean energy last month, a 2% decline from the 5,200 GWh recorded in October 2025, according to Rystad Energy. The global energy consultancy reported that Western Australia was home to two of the three best-performing utility photovoltaic assets for the month.
The 100 MW Merredin Solar Farm, owned by Indonesian developer Sun Energy, was the top-performing large PV facility for the month. Rystad Senior Analyst David Dixon said the plant delivered an average AC capacity factor of 35%.
Naturgy‘s 128 MW Cunderdin Solar Farm in Western Australia ranked second with an average capacity factor of 32%. Pacific Partnerships‘ 102 MW Glenrowan Solar Farm in Victoria placed third, also at 32%, while stages one and two of Acen Australia‘s 400 MW Stubbo solar project in New South Wales took fourth and fifth places respectively.
Dixon said all Australian utility-scale PV and wind assets generated 5.1 TWh of clean energy last month, down 2% from 5.2 TWh in October 2025.
Victoria was the largest single state contributor to the monthly total, generating 290 GWh from utility-scale solar and 1,130 GWh from wind, for a combined 1,420 GWh.
The leading wind assets for the month were the Flat Rocks wind farm in Western Australia at a 48% capacity factor and Warradarge, also in Western Australia, at 47%. Clarke Creek stage 1b in Queensland ranked third at 44%.
Dixon noted that on a trailing 12-month basis, both the number of hours of negative prices and the volume of curtailed utility solar and wind generation are starting to decline as utility battery capacity comes online. He said the trend is expected to continue over the next 24 months as the National Electricity Market utility battery fleet expands from the current 26 GWh to almost 60 GWh by the end of 2028.
Dixon also noted that gas generation in the National Electricity Market totalled 426 GWh for October, the lowest for that month since the market began.
Interactive table based on the Store Companies dataset for this report.
Report Scope and Analytical Framing
Concise View of Market Direction
Market Size, Growth and Scenario Framing
Commercial and Technical Scope
How the Market Splits Into Decision-Relevant Buckets
Where Demand Comes From and How It Behaves
Supply Footprint and Value Capture
Trade Flows and External Dependence
Price Formation and Revenue Logic
Who Wins and Why
How the Domestic Market Works
Commercial Entry and Scaling Priorities
Where the Best Expansion Logic Sits
Leading Players and Strategic Archetypes
How the Report Was Built
Australia's only solar panel manufacturer
Prefabricated solar array solutions
High-efficiency solar power plants
Flexible and glass-free solar products
Developing high-efficiency cell technology
Solar windows and glazing
Next-generation solar cell materials
Major distributor of solar products
Lead generation and consumer platform
Performance monitoring software
Racking and mounting solutions
Local subsidiary of global inverter company
Long-standing solar thermal company
Commercial and industrial LED lighting
LED lighting manufacturer and supplier
Australian subsidiary of global lighting group
Supplier of LED lighting solutions
Integrated solar LED lighting systems
Large-scale solar farm developer
Solar and LED lighting for businesses
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