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.

What a capacity factor is, and why it actually matters Grid & Storage

What a capacity factor is, and why it actually matters

I rode out along the Copper Coast Highway past the Snowtown wind farm a few years back, on one of those long spring weekend rides you do out of Adelaide…

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What ‘firming’ means and why gas keeps coming up
Fossil Fuels & Gas

What ‘firming’ means and why gas keeps coming up

EnergyAustralia's Tallawarra B gas peaker, down near Lake Illawarra, is now into its second winter of proper dispatch,…

By Tom Fitzgerald · 21 Sep 2026
SunCable’s Australia-Asia PowerLink: what’s left after the split
Solar Power

SunCable’s Australia-Asia PowerLink: what’s left after the split

Nobody has poured a footing at Powell Creek yet. That's the fact worth sitting with before anything else:…

By Priya Nair · 19 Sep 2026
Rooftop solar and the midday minimum demand problem
Solar Power

Rooftop solar and the midday minimum demand problem

Stood in a garage in Buderim on the Sunshine Coast a few weeks back, watching a customer's inverter…

By Priya Nair · 18 Sep 2026
WA’s SWIS grid: an island with no way to call for help
Grid & Storage

WA’s SWIS grid: an island with no way to call for help

There's no button in Perth marked 'call for help.' If a generator trips on the South West Interconnected…

By Anjali Rao · 17 Sep 2026
Tesla Energy Australia: Powerwall, Megapack and the SA VPP now
Companies

Tesla Energy Australia: Powerwall, Megapack and the SA VPP now

Two Powerwalls hung dark on the garage wall of a townhouse off Sherriffs Road in Reynella last month,…

By Priya Nair · 17 Sep 2026
Snowy 2.0: past $12bn, Florence stuck, and the timeline again
Grid & Storage

Snowy 2.0: past $12bn, Florence stuck, and the timeline again

Somewhere under the Snowy Mountains right now, a tunnel boring machine named Florence is grinding through rock that…

By Anjali Rao · 15 Sep 2026

Companies

More Companies →
Tesla Energy Australia: Powerwall, Megapack and the SA VPP now
Companies

Tesla Energy Australia: Powerwall, Megapack and the SA VPP now

Two Powerwalls hung dark on the garage wall of a townhouse off Sherriffs Road in Reynella last month,…

By Priya Nair · 17 Sep 2026
Zen Energy Australia: the retailer standing in Whyalla’s shadow
Companies

Zen Energy Australia: the retailer standing in Whyalla’s shadow

Two numbers to start. Zero: the count of turbines, cells or transformers actually energised at Zen Energy's flagship…

By Marcus Wren · 29 Aug 2026
Ampol’s AmpCharge gamble: EV chargers on the servo forecourt
Companies

Ampol’s AmpCharge gamble: EV chargers on the servo forecourt

Pulled into an Ampol on the Hume Highway just south of Yass a few weeks back, mid road…

By Sofia Marchetti · 29 Jul 2026

Solar

More Solar →
SunCable’s Australia-Asia PowerLink: what’s left after the split
Solar Power

SunCable’s Australia-Asia PowerLink: what’s left after the split

Nobody has poured a footing at Powell Creek yet. That's the fact worth sitting with before anything else:…

By Priya Nair · 19 Sep 2026
Rooftop solar and the midday minimum demand problem
Solar Power

Rooftop solar and the midday minimum demand problem

Stood in a garage in Buderim on the Sunshine Coast a few weeks back, watching a customer's inverter…

By Priya Nair · 18 Sep 2026
Tesla Energy Australia: Powerwall, Megapack and the SA VPP now
Companies

Tesla Energy Australia: Powerwall, Megapack and the SA VPP now

Two Powerwalls hung dark on the garage wall of a townhouse off Sherriffs Road in Reynella last month,…

By Priya Nair · 17 Sep 2026

Grid & Storage

More Grid & Storage →
What a capacity factor is, and why it actually matters
Grid & Storage

What a capacity factor is, and why it actually matters

I rode out along the Copper Coast Highway past the Snowtown wind farm a few years back, on…

By Anjali Rao · 26 Sep 2026
WA’s SWIS grid: an island with no way to call for help
Grid & Storage

WA’s SWIS grid: an island with no way to call for help

There's no button in Perth marked 'call for help.' If a generator trips on the South West Interconnected…

By Anjali Rao · 17 Sep 2026
Snowy 2.0: past $12bn, Florence stuck, and the timeline again
Grid & Storage

Snowy 2.0: past $12bn, Florence stuck, and the timeline again

Somewhere under the Snowy Mountains right now, a tunnel boring machine named Florence is grinding through rock that…

By Anjali Rao · 15 Sep 2026

Policy & Markets

More Policy & Markets →
Victoria’s SEC revival meets its offshore wind test
Policy & Markets

Victoria’s SEC revival meets its offshore wind test

A billion dollars of taxpayer equity now sits inside a government-owned energy company headquartered on Commercial Road in…

By Marcus Wren · 26 Sep 2026
AGL versus Origin: two gentailer strategies compared
Policy & Markets

AGL versus Origin: two gentailer strategies compared

Origin Energy's market capitalisation sits comfortably past $15 billion. AGL's has spent most of the past two years…

By Marcus Wren · 24 Sep 2026
Why wholesale electricity prices swing so violently
Policy & Markets

Why wholesale electricity prices swing so violently

South Australia's spot price sat at the market price cap for a chunk of a hot Tuesday afternoon…

By Marcus Wren · 23 Sep 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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