On 23 March 2026, the Australian Government released its Expectations of data centres and AI infrastructure developers, which outlines explicit government expectations about how data centres should contribute to Australia’s national interest, the energy transition, water security, workforce and innovation capabilities. This follows a key commitment under the National AI Plan announced in December 2025, and speaks to a broader shift from recognising data centres as critical infrastructure to actively shaping how they are developed and integrated into Australia’s national interest.
This shift mirrors the scale and pace of investment now flowing into the sector (see Figure 1). In 2024, Australia ranked second globally (after the United States) as the most attractive destination for data centre investment, with increasing expectations that it could serve as a hub for the Indo-Pacific digital economy. Yet the accelerating growth of these facilities presents clear challenges. Data centres are large, resource-intensive facilities that require continuous energy to support the entire digital economy. They currently account for 2% of Australia’s total grid-supplied energy and are projected to rise to 6% by 2030.
This has increased attention among utility providers, communities and policymakers regarding how Australia’s energy system will accommodate growing digital demand. With the expectations now in place and data centre investments continuing to accelerate, this explainer examines how data centre growth is interacting with Australia’s electricity system, and its implications for the renewable energy transition and energy costs.
What are data centres?
Data centres are a critical form of digital infrastructure with distinct resource and operational requirements. At a basic level, they are specialised physical facilities that house servers, networking equipment and data storage systems. Data centres are used to store, process and transmit large volumes of digital information.
In practice, data centres enable many of the digital services that underpin modern economies. From streaming television shows and using social media to online shopping, banking and accessing healthcare services, much of everyday life now relies on this infrastructure. They also support cloud computing, transport and logistics platforms, emergency response capabilities, and the deployment of Artificial Intelligence (AI) tools increasingly used by governments and businesses.
Australia currently hosts more than 250 data centres, with the majority concentrated in New South Wales and Victoria.
To deliver these services reliably, data centres operate as engineered environments designed for near-constant uptime. That is, they operate continuously with minimal interruptions. This requires a reliable and uninterrupted electricity supply, sophisticated cooling systems to manage the heat generated by dense computing equipment, low-latency fibre-optic connectivity to maintain fast and reliable transmission of data, and multiple layers of redundancy to ensure operational resilience. Data centres also rely on extensive physical and cyber security systems to protect both infrastructure and customer data.
Australia currently hosts more than 250 data centres, with the majority concentrated in New South Wales (NSW) and Victoria. Growth has accelerated rapidly in recent years. Total national data centre occupancy increased fortyfold between 2005 and 2025, with two-thirds of that growth occurring since 2020. Global data centre capacity is further expected to double between 2026 and 2030. While sold capacity does not translate directly into immediate grid demand, the overall trajectory reflects sustained expansion in digital infrastructure.
Why are data centres important?
The primary driver of this dramatic expansion of data centres is the rising demand for AI. AI workloads are significantly more computationally intensive than traditional digital services. Training large AI models requires processing vast datasets using high-performance computing infrastructure, while deploying these models at scale demands continuous, low-latency computing to support real-time applications. AI-based workloads are expected to rise from an estimated 54% of global demand for data centre capacity to around 70% by 2030.
As a result, data centres are increasingly recognised as strategic infrastructure. In the United States, for example, data centre infrastructure has been explicitly embedded within the national AI Action Plan released in 2025, as a foundation of technological leadership. Indeed, the United States currently hosts more than 5,400 data centres with 53.7 gigawatts of installed capacity. To put this in context, 1gigawatt is roughly equivalent to the annual electricity needs of almost 1 million homes.
Australia operates at a much smaller scale, with 250 data centres and 1.4 gigawatts of installed capacity. While not comparable in size, the underlying strategic considerations remain relevant. As a middle power seeking to shape the AI-enabled economy, Australia has an interest in maintaining sovereign digital infrastructure capability, rather than relying exclusively on offshore capacity. Local data centre capability strengthens control over sensitive data, supports critical services, enhances resilience during disruptions and anchors high-value digital investment onshore.
Beyond strategic considerations, the economic implications are substantial. AI adoption is expected to deliver productivity gains across sectors, including healthcare, logistics and financial services. This has the potential to unlock A$115 billion in annual economic gains to the Australian economy by 2030, largely through productivity improvements, improved output quality, and new businesses and jobs. Data centres are the physical infrastructure that makes this productivity uplift possible.
Why are data centres energy-intensive?
Data centres impose distinctive demands on energy systems. Unlike most commercial or industrial electricity consumers, they operate continuously and cannot easily reduce or interrupt demand without disrupting critical services. Sustained, high-volume energy delivery is therefore a baseline condition of operation.
Two characteristics drive this energy intensity. The first is the IT load, which refers to the energy consumed by servers, storage systems and networking equipment that processes digital workloads on a near-constant basis. Even brief interruptions can disrupt services relied upon by governments, businesses and consumers. On average, IT equipment typically accounts for around 70% of a modern data centre’s energy demand.
Unlike most commercial or industrial electricity consumers, data centres operate continuously and cannot easily reduce or interrupt demand without disrupting critical services.
The second driver is infrastructure load, the largest component of which is cooling. High-density computing equipment generates substantial heat as a byproduct of operation. Without continuous thermal management, servers would overheat and fail. Cooling systems must thereby operate in parallel with IT equipment, adding a necessary layer of energy demand. Power distribution and backup systems contribute additional load.
The relationship between these two components is captured in a widely used industry metric: Power Usage Effectiveness (PUE). PUE measures the ratio of total facility energy consumption — comprising both IT load and infrastructure load — to the energy consumed by IT equipment alone. A PUE of 1.0 would represent perfect efficiency, with no additional infrastructure load required for cooling or other support systems.
In practice, the global industry average is 1.56, with Australian data centres performing more efficiently at a median of 1.3. Improving PUE remains one of the primary levers available to operators seeking to reduce energy intensity and operating costs. This can be achieved by optimising energy use and distribution, using more efficient chips and deploying higher-performance servers. It is increasingly incorporated into procurement standards and reinforced by strong commercial incentives, including lower operating costs and competitive pricing advantages for customers.
What differentiates data centres from other large electricity users is not only scale, but also their continuity and limited flexibility. These operational requirements also influence where facilities are most likely to be located and how they interact with local networks.
Where are data centres being built and why does it matter?
Although Australia has sufficient energy generation capacity at a national scale, the impacts of data centre expansion are not felt evenly across the grid.
Data centre development in Australia is heavily concentrated in NSW and Victoria, particularly in and around metropolitan Sydney and Melbourne (see Figure 2). These cities host around 80% of the country’s data centre capacity. This clustering reflects practical considerations for data centre operators, including proximity to customers, access to a skilled technical workforce, fibre-optic connectivity, latency requirements for real-time applications and geographic redundancy to ensure operational resilience. However, these same areas also face land constraints, network congestion and competing industrial demand.
The consequence is localised grid exposure. When multiple large facilities seek connection to the same substations or transmission corridors within compressed timeframes, local network capacity can tighten. This can mean delaying new connections, capping the amount a facility can draw or requiring costly infrastructure upgrades before operations can commence.
In NSW, data centres currently account for 4% of the state’s grid-supplied electricity. That share is expected to rise to 11% by 2030. Sydney remains the primary hub for national activity, hosting approximately half of all national pipeline projects. Recent years have seen a substantial volume of development applications and connection enquiries in NSW. In 2025, the NSW Government had approved or received state-significant development applications — large-scale projects that are important to the state for their economic, environmental or social impacts — for 22 additional data centre facilities with a combined capacity of 3.67 gigawatts. This is roughly equivalent to the electricity needed to power more than 3 million households for a year, and if realised, would increase pressure on the state’s available generation capacity (see Figure 3). In parallel, the NSW Government has established the Investment Delivery Authority (IDA) to accelerate approvals for major projects. On 27 March 2026, the IDA endorsed 15 data centre projects worth A$51.9 billion for prioritised government support through the approvals process.
Victoria faces a similar pattern. Data centre demand in Melbourne currently accounts for 2% of Victoria’s grid-supplied electricity and is projected to rise to 8% by 2030. AusNet, Victoria’s transmission operator, has reported assessing more than 10 gigawatts of additional data centre connection requests in the pipeline. If realised, this volume of proposed load could reportedly risk increasing the electricity demand above Victoria’s current supply capacity (see Figure 4).
It is important to note, however, that development applications and connection enquiries reflect potential activity rather than committed or financed projects. Analysis by Oxford Economics suggests that 6 in every 7 megawatts of early-stage connection requests will not materialise on the grid. This reflects the speculative nature of early-stage enquiries. Projects can be submitted before financing is secured, operators can lodge multiple requests for the same site, and some proposals will not meet the technical and reliability standards required to proceed.
Nevertheless, the scale and geographic concentration of the proposed load have heightened scrutiny regarding land availability, grid capacity and water use. The Australian Industry Group has warned that the power grid is currently “not ready for the projected growth in power demands for data centres,” citing potentially severe consequences for homes and businesses. The NSW Legislative Council has also just launched a parliamentary inquiry to examine the pace and location of data centre development, amid concerns over their environmental, land, and infrastructure impacts.
As land scarcity and energy availability emerge as key challenges, data centres will likely expand into other jurisdictions to help mitigate these constraints. This shift is already becoming apparent, with Perth increasingly identified by investors as offering “key strategic advantages,” including direct access to international subsea cables and proximity to renewable energy generation. For now, however, the immediate exposure remains concentrated in Sydney and Melbourne. Whether this translates into sustained grid stress or remains manageable will depend on how effectively planning, investments and new energy generation, particularly renewable deployment, are coordinated with data centre approvals.
How is data centre growth affecting Australia’s renewable energy transition?
Meeting rising electricity demand while achieving Australia’s emissions reduction targets requires rapid expansion of generation, storage and transmission infrastructure. The challenge lies in whether this infrastructure can be delivered at the pace required to match the accelerating digital load.
Traditional data centre facilities can move from planning approval to operation within 18 to 24 months, depending on scale and location. By contrast, new transmission lines, major network augmentations and large-scale renewable projects typically require five to ten years or more to plan and deliver. Lengthy environmental and planning approvals, labour shortages and supply chain constraints, including long procurement lead times for critical equipment such as high-voltage transformers, extend these timelines. The result is a structural mismatch. Electricity demand from data centres materialises faster than the clean energy infrastructure, particularly transmission, required to support it.
Electricity demand from data centres materialises faster than the clean energy infrastructure, particularly transmission, required to support it.
The timing challenge intersects directly with Australia’s emissions reduction trajectory. The Australian Government’s 2035 emissions target of a 62-70% reduction below 2005 levels reflects the complexity of managing multiple transition pressures simultaneously. Data centre growth represents one such pressure.
Most emissions associated with data centres arise from the electricity they consume. The climate impact of that electricity largely depends on facility size, location and the emissions intensity of the energy grid. Many Australian data centre operators have committed to sourcing 100% renewable energy by 2030, which is often achieved through power purchase agreements (PPAs) and large-scale generation certificates (LGCs). PPAs are long-term contracts under which an energy buyer agrees to buy electricity directly from a renewable energy generator at a fixed price, while LGCs are tradeable certificates that represent one megawatt hour of electricity generated from an eligible renewable resource. These instruments support the financial viability of new renewable projects by providing long-term revenue certainty and allowing data centres to offset their emissions. However, they do not guarantee that renewable energy is physically powering facilities at all times during operation.
In practice, data centres draw from the prevailing grid mix. In 2024, renewable sources accounted for 40% of total electricity generation nationally, meaning the majority of dispatched generation still came from coal and natural gas (see Figure 5). The emissions profile of data centre operations thereby also reflects broader system conditions, including the pace of renewable deployment and the availability of firming capacity, such as battery storage or pumped hydro. These power supplies can provide electricity when renewable generation is low.
The increasing energy demand from data centres compounds an already complex national energy system transformation — including retiring ageing coal-fired power stations, upgrading major transmission corridors, integrating variable renewable energy and supporting broader electrification. This, in itself, is a challenge. Two-thirds of Australia’s remaining coal-fired power stations are expected to retire by the mid-2030s, while the deployment of renewable energy has faced prolonged approval times.
Introducing large, continuous electricity demand into this environment heightens the importance of coordination. If renewable generation and firming capacity technologies are not delivered in parallel with new digital load, short-term reliance on existing fossil fuel sources may increase to maintain system stability. The risk is not inevitable, but it is conditional on infrastructure delivery keeping pace with demand growth.
Will data centres raise electricity prices for households?
The energy intensity of data centres has raised concerns about potential impacts on power prices. In parts of the United States located near significant data centre activity, wholesale electricity costs have risen by as much as 267% over the past five years. While this increase reflects multiple factors, including fuel price volatility and broader inflationary pressures, rapid load growth has required substantial new generation and transmission capacity. When infrastructure investment lags demand growth, system costs rise and are passed through to consumers.
As power prices rise for ordinary households, data centre projects have become a political minefield. US President Donald Trump faces pressure on this issue, having won the election partly on voter dissatisfaction with higher consumer costs. The White House is reportedly considering a voluntary compact with major technology firms to ensure data centre development does not raise household electricity costs or undermine grid reliability. This follows Microsoft’s earlier announcement committing to ensure that the electricity costs of its data centres are not passed on to residential customers and to cover any additional infrastructure requirements. These developments reflect industry recognition that social license for data centre development depends on addressing legitimate community concerns.
However, it is important to note that Australia’s regulatory framework differs from the United States in important respects. The recently released data centre expectations reinforce this by calling for operators to cover their share of transmission and distribution infrastructure costs to prevent upward pressure on energy prices. This builds on existing obligations under Australia’s National Electricity Rules, which require new facilities connecting to the grid to pay for the infrastructure costs directly caused by that connection – thereby reducing the likelihood that such connection infrastructure costs will be directly passed to household consumers.
Australian data centre operators have already made substantial infrastructure contributions under this framework. Between 2020 and 2025, the sector invested A$3.1 billion in grid infrastructure, including A$500 million in excess capacity that can enhance local network resilience during periods of peak demand or grid stress.
Yet this does not eliminate the broader risk of rising electricity prices across the market. Electricity prices are determined by the balance of supply and demand at any given moment. When demand rises, and cheaper renewable generation is insufficient, more expensive gas-fired generators are brought online to fill the gap. As electricity prices are set by the highest-cost generator required to meet demand, this can increase wholesale prices for all consumers.
Without additional renewable generation and storage, data centre growth could increase wholesale electricity prices by 26% in NSW and 23% in Victoria by 2035 under a central scenario.
Modelling by the Clean Energy Finance Corporation quantifies the risk. Without additional renewable generation and storage, data centre growth could increase wholesale electricity prices by 26% in NSW and 23% in Victoria by 2035 under a central scenario. The primary driver is increased reliance on gas peaking generation — gas-fired plants used during periods of high energy demand or when renewable output is limited.
These potential impacts are not inevitable. They reflect the broader economics of rapid load growth in a supply-constrained environment. The extent of price effects will ultimately depend on how quickly new generation, storage and transmission capacity are delivered alongside energy demand growth.
What value do data centres bring to Australia’s energy system?
None of the risks outlined above suggests that data centres are inherently incompatible with Australia’s energy transition. The alternative to centralised data centre infrastructure is dispersed on-premises servers, which typically operate at lower use rates and higher energy intensity. Rather, these underscore that Australia’s ability to position itself as a data centre hub for the Indo-Pacific will depend on effective coordination. Uncoordinated growth, particularly in already constrained metropolitan regions, increases the likelihood of higher system costs, emissions trade-offs and community resistance. Coordinated growth, by contrast, can enable data centre investment to reinforce the renewable energy transition.
The Australian Government has increasingly framed data centres in these terms. Minister for Industry and Innovation, Senator the Hon Tim Ayres, described data centre investment as an “unparalleled opportunity” to underwrite new generation and transmission capacity. In this framing, AI and digital infrastructure are not simply additional loads on the energy grid, but potential catalysts for expanded system capability and resilience.
Indeed, data centre operators are already contributing materially to Australia’s energy infrastructure through various mechanisms, including long-term PPAs and, in some cases, on-site power generation and storage. Total investment by data centres into grid infrastructure is projected to reach A$7.2 billion by 2030. These commitments can help unlock new renewable projects by providing long-term revenue certainty.
The constraint is not capital or investor appetite. It is the pace and coordination of the network, transmission and connection infrastructure upgrades required to support new energy loads.
Individual projects illustrate the scale of commitment. Amazon, for example, announced plans to invest A$20 billion between 2025 and 2029 to expand Australian data centre infrastructure. This includes 11 renewable energy projects across NSW, Queensland and Victoria. Once operational, these projects are expected to deliver 1.4 million megawatt hours of carbon-free electricity annually, sufficient to power 290,000 Australian homes. The Australian Government has been an active partner in attracting this investment, with Prime Minister Anthony Albanese acknowledging the Amazon commitment as the “kind of economic investment in our nation that we want to see.”
In parallel, operators are also pursuing efficiency improvements within facilities. Reductions in PUEs, adoption of liquid cooling technologies and co-location strategies are being explored to improve the energy profile of data centre operations.
The constraint, therefore, is not capital or investor appetite. It is the pace and coordination of the network, transmission and connection infrastructure upgrades required to support new energy loads. These processes remain vulnerable to regulatory and supply chain delays.
What next?
Data centre growth is not merely an infrastructure challenge, but also a coordination one. At present, data centre approvals, transmission planning and renewable energy zone development are often undertaken through separate processes across federal and state jurisdictions. There is no overarching framework that systematically aligns large new digital loads with the timing of new generation and transmission delivery.
This creates the risk that digital infrastructure and supporting energy systems progress on different timelines. Amazon Web Services has already identified this as a key challenge in the European Union, warning that it could deter future data centre investment. Transmission investment decisions can lag data centre development timelines, and renewable projects may be delayed by network and supply challenges. The constraint is not a lack of capital, but the speed and integration of infrastructure delivery.
The national data centre expectations represent a meaningful step toward addressing this by outlining how projects should align with broader national priorities. However, whether the expectations prove sufficient will depend on their implementation and whether states and territories align their own processes accordingly.
Australia remains a competitive destination for data centre investment, supported by abundant renewable energy, political stability, robust privacy protections and proximity to Indo-Pacific markets. However, this position is not guaranteed. Capital is mobile, and investors have emphasised the importance of regulatory certainty and grid readiness.
Aligning digital infrastructure expansion with renewable and transmission planning, reducing approval times and accelerating enabling infrastructure will be critical to incentivising investment consistent with national interests. How effectively Australia can coordinate infrastructure delivery alongside data centre growth will shape whether it captures the productivity gains of AI and the digital economy or inherits the system pressures that are now visible in other markets.