The 50% Moment: How Renewables and Storage shaped the 4th quarter of 2025
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The 50% Moment: How Renewables and Storage shaped the 4th quarter of 2025
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About this listen
Season 3 of AEMO On Air is underway
In the first episode for 2026, we speak with Kerry Galloway, AEMO’s Manager of Market Insights, about a milestone quarter for Australia’s energy transition following the launch of AEMO’s Q4 2025 Quarterly Energy Dynamics (QED) report.
For the first time ever, renewables and storage supplied more than half of total energy needs across the east and west coast grids in Q4, with WA’s WEM reaching an extraordinary 91% renewable supply at peak. Strong renewable output contributed to lower wholesale prices — while remaining just one of several factors that shape the market.
The episode also explores the continued surge in investment, from grid-scale solar and batteries to rooftop systems on Australian homes. Battery discharge nearly tripled year-on-year in the NEM and jumped around 200% in the WEM, while rooftop solar growth is increasingly influencing daytime demand and minimum operational demand.
Combined with milder conditions than Q4 2024, the quarter highlights sustained momentum and real change in the energy mix.
Explore the full QED for more insights: https://bit.ly/3LRXQUf
Interviewer: Catie Low
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