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.

Small modular reactors: the actual state of the technology Fossil Fuels & Gas

Small modular reactors: the actual state of the technology

One SMR project in the world is currently pouring safety-related concrete. One was cancelled after its customers walked away over the price. Everything else — and there is a lot…

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Is Australia closing coal faster than it can replace it?
Policy & Markets

Is Australia closing coal faster than it can replace it?

Eraring was supposed to be gone by now. The biggest power station in the National Electricity Market, 2,880…

By Marcus Wren · 20 Aug 2026
NSW’s energy transition: the coal exit meets a REZ rollout running late
Policy & Markets

NSW’s energy transition: the coal exit meets a REZ rollout running late

Four coal plants. That's what's still keeping the lights on for eight million people in New South Wales.…

By Marcus Wren · 18 Aug 2026
Virtual power plants explained: MW, MWh and the fine print
Grid & Storage

Virtual power plants explained: MW, MWh and the fine print

Here's a number to sit with: AGL's virtual power plant fleet and Origin's Loop VPP each now coordinate…

By Anjali Rao · 14 Aug 2026
Rooftop solar versus a home battery: which pays back first
Solar Power

Rooftop solar versus a home battery: which pays back first

A homeowner in Reservoir rang me last month with a quote in hand: 10kW of rooftop solar plus…

By Priya Nair · 13 Aug 2026
How rooftop solar feed-in tariffs actually work in 2026
Solar Power

How rooftop solar feed-in tariffs actually work in 2026

Check your solar retailer's rate card right now and you'll probably see two numbers that don't look like…

By Priya Nair · 11 Aug 2026
Transmission versus distribution: who owns the poles and wires
Grid & Storage

Transmission versus distribution: who owns the poles and wires

Drive along the Hume Highway between Yass and Wagga and you'll pass under a line of steel towers…

By Anjali Rao · 11 Aug 2026

Companies

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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
ACEN Australia: the Philippines-backed builder behind New England Solar
Companies

ACEN Australia: the Philippines-backed builder behind New England Solar

Drive the New England Highway south out of Uralla on a clear afternoon and you'll see it before…

By Callum Hayes · 28 Jul 2026

Solar

More Solar →
Rooftop solar versus a home battery: which pays back first
Solar Power

Rooftop solar versus a home battery: which pays back first

A homeowner in Reservoir rang me last month with a quote in hand: 10kW of rooftop solar plus…

By Priya Nair · 13 Aug 2026
How rooftop solar feed-in tariffs actually work in 2026
Solar Power

How rooftop solar feed-in tariffs actually work in 2026

Check your solar retailer's rate card right now and you'll probably see two numbers that don't look like…

By Priya Nair · 11 Aug 2026
Negative electricity prices at midday: what they mean for you
Solar Power

Negative electricity prices at midday: what they mean for you

Around 1pm on a clear day last week, the wholesale price in South Australia dropped to minus $60…

By Priya Nair · 2 Aug 2026

Grid & Storage

More Grid & Storage →
Kidston pumped hydro: the mine that became a battery
Grid & Storage

Kidston pumped hydro: the mine that became a battery

Two hundred and fifty megawatts, up to eight hours' worth of it, sitting in a hole in the…

By Anjali Rao · 3 Sep 2026
Virtual power plants explained: MW, MWh and the fine print
Grid & Storage

Virtual power plants explained: MW, MWh and the fine print

Here's a number to sit with: AGL's virtual power plant fleet and Origin's Loop VPP each now coordinate…

By Anjali Rao · 14 Aug 2026
Transmission versus distribution: who owns the poles and wires
Grid & Storage

Transmission versus distribution: who owns the poles and wires

Drive along the Hume Highway between Yass and Wagga and you'll pass under a line of steel towers…

By Anjali Rao · 11 Aug 2026

Policy & Markets

More Policy & Markets →
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
Are big batteries being built for the wrong job?
Policy & Markets

Are big batteries being built for the wrong job?

Two hours. That's the average discharge duration of most big batteries now under construction or contracted across the…

By Marcus Wren · 27 Aug 2026
Is Australia closing coal faster than it can replace it?
Policy & Markets

Is Australia closing coal faster than it can replace it?

Eraring was supposed to be gone by now. The biggest power station in the National Electricity Market, 2,880…

By Marcus Wren · 20 Aug 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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