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Reliability2026-10-30· GNews: RenewEconomy

Almost 100 new data centres in the works, adding more than 2 GW of demand by 2030, market update finds - Renew Economy

Image: Harald the Bard / Wikimedia Commons (CC BY-SA 4.0)

Almost 100 new data centres are planned for Australia, bringing more than 2 GW of additional electricity demand by 2030, according to a market update. The scale of this load is significant: it represents a single, controllable, year-round demand that must be served reliably and continuously, unlike the intermittent output of renewables.

Where this fits

This story tests whether Australia's electricity grid can absorb a major new baseload demand while relying on weather-dependent generation. Data centres run 24/7 and cannot shift their consumption to suit wind and solar availability. This is a reliability test and a firming test: every gigawatt of data centre load that cannot be met by simultaneous renewable supply must be met by gas, batteries (briefly), or firm power. The grid now faces the dual squeeze of rising overall demand and rising weather-dependent supply, both growing faster than firm capacity can be built.

What it means

Australia is adding firm baseload demand at a pace that will strain a grid increasingly reliant on solar and wind, with gas as the only available firming source for the next decade. This is a data point in a larger problem: the electricity transition is outpacing the buildout of both firm generation and the transmission needed to move renewable energy at scale. Nuclear generation would meet this load at zero emissions and zero weather risk, burning no gas and requiring no battery firming. Instead, Australia has chosen to meet 2 GW of controllable, high-value industrial demand with intermittent sources and gas backup, at higher cost and higher whole-system carbon than the technology law forbids.

By the numbers

Taking the article's figure of more than 2 GW of demand by 2030, at indicative Australian build costs:
What it costs to buildA$4bn–A$6.4bn

at ~A$2000–3200/kW installed. Source: CSIRO GenCost 2024-25. Indicative.

What it generates~6.7 TWh/yr

at a ~38% capacity factor, and only when the wind blows, so it still needs firming.

The same money in nuclear0.3–0.8 GW

enough for 2–6 TWh a year of firm, always-on power, generating for ~60 years. Source: CSIRO GenCost 2024-25 (A$8.5–13.2bn/GW), IAEA capacity factor.

Figures are indicative conversions from the article's stated quantity using published cost, material and capacity factors (CSIRO GenCost, BNEF, IEA, IAEA). Ranges, not precise forecasts.

Go deeper on the numbers

The bigger picture

Energy security is national security. This connects to the wider case at Unprepared: Australia's dependence on a strategic rival, and how ready it is for the world that is coming.

Reported by GNews: RenewEconomy. Read the original report ↗

Related coverage

The numbers, as they move

A short, sourced brief when the figures shift: a transmission blow-out, a supply-chain move, a milestone.

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