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AI-driven data center boom could push the sector to 13% of Australia's national grid consumption, up from just 3% today
Australia’s data centers currently sip about 5 TWh of electricity per year, a modest 3% slice of the national grid. By 2035-36, that number is expected to hit 34 TWh, a sevenfold increase that would make data centers responsible for 13% of all grid-supplied power in the country’s National Electricity Market.
The projections come from the Australian Energy Market Operator’s (AEMO) 2026 Electricity Statement of Opportunities report, which paints a picture of a power grid about to be reshaped by artificial intelligence and cloud computing in ways that would have seemed implausible even a few years ago.
The numbers behind the boom #
The scale of the buildout is staggering. AEMO’s report shows the number of data centers currently in development has doubled to 225, up from just 97 the previous year. That kind of year-over-year growth has prompted AEMO to classify data centers as their own distinct load category, a sign that regulators now view them as a structural force in the energy landscape rather than a rounding error.
Most of these facilities are clustering around Australia’s major population centers. Sydney, Newcastle, Wollongong, Melbourne, and Geelong are the primary hotspots, driven by demand for AI processing and cloud infrastructure that benefits from proximity to undersea cable landing points and dense fiber networks.
Total electricity consumption across the NEM is forecast to grow more than 40%, climbing from roughly 176-178 TWh in 2025-26 to around 250 TWh by 2035-36.
AEMO’s longer-term modeling tells a revealing story about how quickly these projections have shifted. In their Step Change scenario, which maps out pathways to 2050, earlier models anticipated data center demand reaching 34 TWh by mid-century. The latest report suggests that milestone will arrive roughly 15 years ahead of schedule.
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