Australian data centers are projected to consume approximately 13 percent of the national electricity grid capacity in the near term.
Australian data centres will consume 13% of the country’s main electricity market by 2035–36, rising from 3% today—a nearly sevenfold increase over a decade, according to the Australian Energy Market Operator (AEMO). Keira Wright reported the forecast for Bloomberg. The figure appears in AEMO’s annual Electricity Statement of Opportunities, the operator’s authoritative assessment of whether supply will meet demand across the National Electricity Market over the coming decade. It serves as the primary planning document for utilities and governments.
Under AEMO’s projections, data centres will draw 34 terawatt hours annually from the National Electricity Market by 2035–36. The forecast arrives as Australia phases out much of its legacy baseload generation. Approximately 13 gigawatts of coal-fired capacity and nearly 2 gigawatts of gas generation are scheduled to retire within the decade. These figures do not directly offset one another: the data centre projection measures annual energy consumption in terawatt hours, while the retirement figures represent instantaneous capacity in gigawatts. They track fundamentally different metrics.
“Data centers are particularly influential because they operate relatively consistently throughout the day and across seasons, similar to large industrial loads,” AEMO said in its report. That flat load profile creates operational challenges. A steady, unvarying draw strains the grid during off-peak hours when other consumers have reduced usage and system margins are thinnest. Unlike factories operating on shifts, households cooking dinner, or air conditioning tracking weather patterns, accelerator racks do not follow predictable daily cycles.
The outlook is not entirely strained. Connections for new generation and storage more than doubled last year’s record, significantly improving the reliability outlook, AEMO stated. Last year already set a high-water mark; record clean energy additions had previously eased blackout fears in August 2025, Bloomberg reported at the time. This year surpassed that milestone, with approximately 9 gigawatts of new generation and storage reaching full output in 2025–26—double the prior year’s total. “A significant amount of new capacity is expected to be delivered between now and the early 2030s,” AEMO chief executive Daniel Westerman said in a statement. This influx will help “replace retiring generation and support growing electricity demand,” he added, though “beyond 2030, the next wave of investment will be critical to maintaining reliability.”
Despite the optimistic capacity outlook, developers have already cancelled more than a third of the data centre projects AEMO listed last year, according to the report. This correction underscores the structural difference between announced proposals and fully constructed facilities. A pipeline that contracts by a third in a single year could face further delays, or conversely, accelerate faster than transmission infrastructure can be deployed. Commonwealth Bank of Australia estimates the national data centre buildout could reach A$150 billion (approximately $108 billion) by 2030.
Australia actively seeks this investment, aiming to capture its economic benefits while mitigating strain on the grid and local water supplies, Bloomberg reported. This tension permeates the entire sector. Data centres often require power long before transmission infrastructure is ready. The United States Studies Centre has quantified this infrastructure mismatch for Australia, while the Clean Energy Finance Corporation has warned of downstream consequences, including grid bottlenecks, elevated consumer electricity prices, and greater reliance on fossil fuels than originally planned.
The federal government is pushing to mandate renewable energy for new data centres, doubling down on this policy earlier this month, Bloomberg reported. However, several regional administrations have objected. Prime Minister Anthony Albanese will use Wednesday’s national cabinet meeting to reassure state premiers regarding a new AI law, promising that federal approval frameworks will complement rather than override state regulations, according to the Guardian. The conservative governments of Queensland and the Northern Territory have been the most vocal critics. A climate expert told the Guardian that Australia has “one shot to get the rules right.” The regulatory debate is not new: Australia’s world-first data centre rules required unanimous state consent, and two states rejected the proposal in July.
Not all projects depend on grid connections. A gas-rich outback station could potentially host a $28 billion off-grid AI data centre, generating its own power to bypass transmission queues. While this removes the site from the grid operator’s system, it does not resolve emissions concerns. This dynamic mirrors global trends. Wherever rapid buildouts occur, operators and governments frequently encounter connection queues that outpace physical wiring, prompting pauses or audits. Texas, having branded itself the epicentre of AI, recently froze new grid connections pending an audit. Scotland considered a moratorium that would have halted new data centres, jeopardizing the UK’s broader AI strategy. In Europe, queueing constraints have already displaced 63% of new capacity away from the five established markets.
AEMO’s publication represents a demand projection rather than a construction schedule. The 34 terawatt hour estimate assumes a development pipeline that has already shed a third of its projects once. The report does not identify which specific sites will proceed, who will supply their power, or how the 13% grid share target will hold if Westerman’s anticipated post-2030 investment wave falters. Nor does it resolve the immediate political question premiers will debate on Wednesday: ultimately, who holds the authority to approve a data centre in the first place.