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.

Public versus private ownership of generation: who builds it better Policy & Markets

Public versus private ownership of generation: who builds it better

$36 billion. That's roughly the figure sitting against Queensland's state-owned pumped hydro and transmission build when you add Borumba, CopperString and the associated REZ works together, all carried on the…

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Green hydrogen: where it genuinely makes sense
Fossil Fuels & Gas

Green hydrogen: where it genuinely makes sense

A few years back I sat through a pitch deck in a Fremantle boardroom that had hydrogen doing…

By Tom Fitzgerald · 26 Oct 2026
Coal closures and the reliability debate nobody’s settled
Fossil Fuels & Gas

Coal closures and the reliability debate nobody’s settled

AEMO's reliability forecasts have a habit of reading like actuarial tables written by someone who'd rather not be…

By Tom Fitzgerald · 26 Oct 2026
Why wholesale electricity prices swing so violently
Policy & Markets

Why wholesale electricity prices swing so violently

$16,600 a megawatt-hour, then minus $57 a megawatt-hour, inside the same trading day. That's not a glitch in…

By Marcus Wren · 25 Oct 2026
AGL versus Origin: two gentailer strategies compared
Policy & Markets

AGL versus Origin: two gentailer strategies compared

Two companies, roughly comparable market capitalisation, same regulatory environment, same retail base of millions of households and businesses,…

By Marcus Wren · 25 Oct 2026
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
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

Companies

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Goldwind Australia: the turbine maker that became a developer
Companies

Goldwind Australia: the turbine maker that became a developer

Drive the Glenelg Highway west of Ballarat and the turbines at Stockyard Hill start appearing on the horizon…

By Callum Hayes · 27 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
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

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

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Queensland’s energy plan rests on two pillars and one cliff face
Grid & Storage

Queensland’s energy plan rests on two pillars and one cliff face

Drive the Yabba Creek Road out past Imbil and you hit a construction zone that doesn't look like…

By Anjali Rao · 27 Oct 2026
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

Policy & Markets

More Policy & Markets →
Public versus private ownership of generation: who builds it better
Policy & Markets

Public versus private ownership of generation: who builds it better

$36 billion. That's roughly the figure sitting against Queensland's state-owned pumped hydro and transmission build when you add…

By Marcus Wren · 29 Oct 2026
Who really pays for the transmission build-out
Policy & Markets

Who really pays for the transmission build-out

$12.7 billion. That's the revised cost estimate AEMO's latest Integrated System Plan attaches to the committed and anticipated…

By Marcus Wren · 28 Oct 2026
Why wholesale electricity prices swing so violently
Policy & Markets

Why wholesale electricity prices swing so violently

$16,600 a megawatt-hour, then minus $57 a megawatt-hour, inside the same trading day. That's not a glitch in…

By Marcus Wren · 25 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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