Australia’s energy sector, followed closely

Energy Supply Australia is an independent publication about the Australian energy system — the grid, the market, and the companies driving the transition. We cover power, wind, solar, nuclear, gas and storage the way people inside the industry actually talk about them: with the numbers left in, the jargon taken out, and no press releases dressed up as news. If it changes how the country makes, moves or pays for energy, we’re writing about it.

South Australia: the grid that keeps teaching the NEM lessons Grid & Storage

South Australia: the grid that keeps teaching the NEM lessons

On a mild spring afternoon a few weeks back, South Australia's instantaneous wind and solar output covered well over 100 per cent of the state's own demand, with the surplus…

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Does Australia actually need nuclear power?
Policy & Markets

Does Australia actually need nuclear power?

Zero. That's how many commercial nuclear reactors are under construction in Australia right now, and how many have…

By Marcus Wren · 22 Oct 2026
Nuclear versus firmed renewables: the cost maths, again
Fossil Fuels & Gas

Nuclear versus firmed renewables: the cost maths, again

CSIRO and AEMO published the latest GenCost draft a few months back, and the number that mattered most…

By Tom Fitzgerald · 21 Oct 2026
Woodside after Scarborough: gas-in-transition meets the balance sheet
Companies

Woodside after Scarborough: gas-in-transition meets the balance sheet

First cargo from Scarborough is pencilled in for 2026, and depending on which investor call you caught this…

By Tom Fitzgerald · 21 Oct 2026
Eraring at 2027: the deal, the battery, and what’s next
Fossil Fuels & Gas

Eraring at 2027: the deal, the battery, and what’s next

Four gigawatts of coal capacity sitting on the shore of Lake Macquarie, and the closure date attached to…

By Tom Fitzgerald · 20 Oct 2026
Kurri Kurri: the peaker that took the long way round
Fossil Fuels & Gas

Kurri Kurri: the peaker that took the long way round

The Hunter Power Project at Kurri Kurri burned its first gas more than two years behind the schedule…

By Tom Fitzgerald · 20 Oct 2026
Is rooftop solar quietly breaking the grid?
Policy & Markets

Is rooftop solar quietly breaking the grid?

Nineteen gigawatts of rooftop solar capacity sat on Australian roofs by the Clean Energy Regulator's last count, and…

By Marcus Wren · 19 Oct 2026

Companies

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AGL Energy: the biggest gentailer’s awkward middle act
Companies

AGL Energy: the biggest gentailer’s awkward middle act

Around 4,600 megawatts. That's roughly the combined nameplate of Loy Yang A and Bayswater, the two coal stations…

By Marcus Wren · 23 Oct 2026
Woodside after Scarborough: gas-in-transition meets the balance sheet
Companies

Woodside after Scarborough: gas-in-transition meets the balance sheet

First cargo from Scarborough is pencilled in for 2026, and depending on which investor call you caught this…

By Tom Fitzgerald · 21 Oct 2026
Powerlink’s big bet: CopperString and the north-west minerals grid
Companies

Powerlink’s big bet: CopperString and the north-west minerals grid

1,100 kilometres of new high-voltage line between the Queensland coastal grid and Mount Isa is not a project…

By Anjali Rao · 19 Oct 2026

Solar

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The Consumer Energy Resources roadmap: what it means on your roof
Solar Power

The Consumer Energy Resources roadmap: what it means on your roof

Three export limit changes in four years on the same switchboard. That's what a client in Pascoe Vale…

By Priya Nair · 16 Oct 2026
Home battery payback: does it stack up yet
Solar Power

Home battery payback: does it stack up yet

I had a client in Reservoir last month pull out a quote with a 14-year payback on a…

By Priya Nair · 10 Oct 2026
Rooftop solar versus a home battery: which pays back first
Solar Power

Rooftop solar versus a home battery: which pays back first

Last month I sat at a kitchen table in Blackburn with a couple who'd just been quoted $4,200…

By Priya Nair · 3 Oct 2026

Grid & Storage

More Grid & Storage →
South Australia: the grid that keeps teaching the NEM lessons
Grid & Storage

South Australia: the grid that keeps teaching the NEM lessons

On a mild spring afternoon a few weeks back, South Australia's instantaneous wind and solar output covered well…

By Anjali Rao · 24 Oct 2026
Powerlink’s big bet: CopperString and the north-west minerals grid
Companies

Powerlink’s big bet: CopperString and the north-west minerals grid

1,100 kilometres of new high-voltage line between the Queensland coastal grid and Mount Isa is not a project…

By Anjali Rao · 19 Oct 2026
Marinus Link: the cable Battery of the Nation can’t do without
Companies

Marinus Link: the cable Battery of the Nation can’t do without

Two cables, 1500 megawatts combined, and a price tag that has roughly doubled since the project was first…

By Anjali Rao · 18 Oct 2026

Policy & Markets

More Policy & Markets →
How the NEM actually dispatches power every five minutes
Policy & Markets

How the NEM actually dispatches power every five minutes

288. That's how many times a day AEMO's dispatch engine re-solves the entire National Electricity Market, picks a…

By Marcus Wren · 24 Oct 2026
Victoria’s SEC revival meets its offshore wind test
Policy & Markets

Victoria’s SEC revival meets its offshore wind test

$1 billion. That's the seed capital Victorians voted to hand back to a publicly owned generator in 2022,…

By Marcus Wren · 23 Oct 2026
AGL Energy: the biggest gentailer’s awkward middle act
Companies

AGL Energy: the biggest gentailer’s awkward middle act

Around 4,600 megawatts. That's roughly the combined nameplate of Loy Yang A and Bayswater, the two coal stations…

By Marcus Wren · 23 Oct 2026

The desk

Energy Supply Australia is written by a small team that covers the grid, the market and the companies building the transition. No wire copy, no press releases dressed up as news.

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