Could the Grid Handle It?

Anthropic’s Australian ambitions could require an extraordinary amount of electricity.

The Claude maker expressed interest earlier this year in locating up to 5 gigawatts of AI data center capacity in New South Wales, according to internal government emails obtained by ABC News. The figure would be more than three times the combined capacity of all Australian data centers, putting the scale of the global AI infrastructure race into unusually stark terms.

For Australian IT leaders, the question extends well beyond whether Anthropic ultimately builds anything close to 5GW. The company’s interest illustrates how rapidly AI infrastructure demand could reshape where computing capacity is built, how it is powered, and potentially what enterprises pay to access it.

Anthropic’s 5GW figure was an ambition, not a commitment

The 5GW number needs an important qualifier.

ABC reported that Infrastructure NSW emails from March indicated that Anthropic was interested in discussing opportunities to locate up to 5 GW of capacity in NSW. The emails did not specify when Anthropic wanted that capacity available, and ABC said the figure represented initial interest rather than a confirmed construction plan. Anthropic and NSW Investment declined to comment.

The company has nevertheless been examining a significantly larger presence in Australia. Anthropic CEO Dario Amodei and other executives visited the country after the emails were sent, and the company signed a memorandum of understanding with the Australian government that included plans to expand its presence in Australia.

The newly revealed figure also provides more context for Australia’s broader push for greater control over the infrastructure that underpins artificial intelligence. As TechRepublic previously examined, policymakers are increasingly concerned that Australia could become primarily a buyer of AI services developed and operated overseas, rather than capturing more of the technology’s economic value locally.

Hosting more AI infrastructure could help change that equation. But it creates another problem: finding enough electricity to run it.

Australia’s grid is already preparing for an AI data center surge

Five gigawatts would represent an enormous new electrical load even before accounting for other companies expanding their infrastructure.

Australia’s energy system is already preparing for sharply rising data center demand. TechRepublic detailed in June that the Australian Energy Market Operator had identified data centers as an emerging grid-stability challenge as increasingly large facilities connect to the National Electricity Market.

AEMO estimated data centers consumed roughly 4 terawatt-hours of electricity across the National Electricity Market in fiscal 2025, equivalent to about 2.2% of total demand. Under its Step Change scenario, consumption could rise to approximately 12 TWh, or 6% of demand, by 2029-30.

AI infrastructure makes the challenge particularly acute because modern GPU clusters concentrate immense computing and power requirements in individual campuses. Power and cooling have consequently become fundamental constraints on AI deployment worldwide, a challenge TechRepublic has explored in its coverage of AI-era data center design.

Australia now faces that global problem at national scale.

New Australian rules could force data centers to bring their own power

The Anthropic revelation arrived just as the federal, state, and territory governments are negotiating how to prevent the AI infrastructure boom from pushing costs and grid pressures onto other electricity users.

On Aug. 26, National Cabinet agreed to develop nationally consistent mandatory standards covering the energy, water, and land-use impacts of large data centers. The federal government plans to legislate the framework in early 2027, according to the National Cabinet communiqué.

The proposed framework would impose significant obligations on developers.

The government has said large data centers will be expected to underwrite new electricity supply, pay their share of grid-connection costs, reduce power consumption when required, and meet water-efficiency requirements.

The Australian Energy Market Commission has separately recommended reforms designed to make new data centers bring additional clean and firm energy into the system, demonstrate that their demand is backed by new firm capacity, participate directly in electricity markets, and operate more flexibly.

The political details are still being worked out. Energy Minister Chris Bowen said Friday that states would not receive blanket exemptions from the planned national standards. Draft standards are expected before legislation is introduced next year, ABC reported.

What the AI infrastructure race means for Australian IT leaders

For CIOs and infrastructure teams, a multigigawatt AI buildout could eventually influence decisions that appear far removed from electricity policy.

More domestic capacity could improve access to AI computing resources, reduce some dependence on overseas infrastructure, and make Australia a more attractive location for workloads that benefit from local hosting. That could matter for organizations considering latency, data residency, sovereignty, and resilience requirements.

But physical proximity does not automatically mean abundant or inexpensive compute.

If electricity generation, transmission, water infrastructure, or data center construction fails to keep pace with demand, capacity constraints could still affect where cloud providers build, how quickly new AI services become available, and what customers ultimately pay for them.

That is why the 5GW figure matters even if Anthropic never builds 5GW in NSW.

It offers a glimpse of the infrastructure scale frontier AI companies are contemplating and of the choices Australia may have to make if it wants a meaningful share of that investment. The country’s opportunity is no longer simply attracting AI companies. It is determining whether the power grid, water systems, regulation, and enterprise technology ecosystem can expand fast enough to accommodate what those companies may bring with them.

Also read: Australia’s AI infrastructure boom is already reshaping the country’s economy, with data centers accounting for nearly 17% of private investment in the first quarter of 2026.