⚡ AEMO: Renewables Keep Australia’s Energy Reliability “Healthy”

This week, while some politicians were still waving the “coal forever” flag, Australia’s official energy market operator (AEMO) delivered a very different message: our energy system is becoming more reliable, not less, thanks to wind, solar and battery storage.

The 2025 Electricity Statement of Opportunities (ESOO) shows that a record year of clean energy investment is making the grid stronger – even as electricity demand surges from data centres, electrification, and new industries.

🌱 What AEMO Found

• 📈 Demand is rising – electricity use is expected to jump 21% by 2035, mostly due to new technologies and industry growth.

• 🏭 Coal is retiring – 11 GW of fossil fuel capacity will close, including Eraring, Bayswater, and Yallourn.

• 🌞 Renewables filling the gap – Australia is adding 5–10 GW of new solar, wind and storage every year.

• 🔋 Reliability looks good – As long as projects keep moving, AEMO says supply will stay “healthy” across most states.

🚨 The Challenges Ahead

While the overall outlook is positive, AEMO warns of a few short-term gaps:

• Queensland – could face an 80 MW shortfall this summer, with unreliable coal plants and slower renewable rollout under the new state government.

• South Australia – may see a 390 MW gap in 2026-27 if a gas plant retires early and transmission upgrades run late.

But these risks are expected to be managed with project extensions and fast-tracked renewable projects.

🏭 Why Coal is the Real Risk

Despite calls to “bring back coal,” AEMO says coal plants are actually the least reliable part of the grid.

• They have the highest unplanned outage rates of any generation type.

• Many units are old and failing, leading to costly breakdowns.

• Renewables + storage are proving far more reliable as investment grows.

As AEMO’s CEO Daniel Westerman explains:

“The 10-year investment pipeline to manage energy reliability is healthy – as long as we keep building renewable generation, storage and transmission.”

🏡 What It Means for Australians

The message is clear: Australia’s energy future is renewable.

• More solar, wind and storage → cheaper, cleaner power.

• Less reliance on ageing coal → fewer outages.

• Policy certainty → confidence for investors and communities.

Federal Energy Minister Chris Bowen summed it up:

“Australians can have confidence that our plan is working – we’re making the system cleaner, fairer and more reliable.”

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