Australia Hyperscale Data Center Market Size and Share - Growth Analysis Report and Forecast Trends (2026-2035)

Market Overview

The Australia hyperscale data center market is shifting from cloud-region build-outs towards gigawatt-scale campuses designed for AI training and inference. Power access, not land or demand, now sets the pace and decides which projects proceed.

Three forces shape the market: platform commitments from Amazon Web Services and Microsoft that together exceed AUD 45 billion; a connection queue that AEMO measured at 67 GW of proposed capacity; and tightening state and federal rules on energy, water and sovereignty.

In December 2025, AirTrunk announced a Melbourne campus of more than 354 MW, and OpenAI and NEXTDC signed an agreement for a 650 MW Sydney campus. In March 2026, Canberra published national expectations for data centres, and in April 2026 Microsoft pledged AUD 25 billion.

Key Market Trends and Insights

• Platform commitments: Amazon Web Services committed AUD 20 billion for 2025 to 2029 in June 2025, and Microsoft added AUD 25 billion through 2029 in April 2026, anchoring multi-year campus demand.
• Grid queue: AEMO reported in August 2026 that 225 projects with 67 GW of proposed capacity sit in the connection process, though it cautions that this is not a demand forecast.
• Order book: NEXTDC reported contracted utilisation of 740.1 MW at 30 June 2026, up 202% in the year, with a forward order book of 565.1 MW still to convert to billing.
• Policy friction: Google reportedly paused a AUD 20 billion Australian hub in March 2026 over permanent establishment tax concerns, showing how tax certainty can delay platform investment.

Australia Hyperscale Data Center Market Size and Forecast

The market is moving from conventional cloud halls towards liquid-cooled, power-dense campuses built for AI. Construction and civil works lead spending, while cooling systems advance fastest as rack densities climb. Wholesale colocation campuses dominate ownership, with sovereign AI campuses growing quickest, and cloud service providers remain the largest tenants. New South Wales is the largest state, while South Australia expands fastest from a small base. Grid access, state planning rules and tax certainty will decide timing, yet the multi-year outlook remains strong.

Key Takeaways: Australia Hyperscale Data Center Market

Platform and Colocation Capex Sustains Demand

Spending is on course to nearly triple across the decade, from AUD 11.50 billion in 2025 to AUD 31.21 billion in 2035 at a 10.5% CAGR. Cloud commitments, pre-leased colocation capacity and AI offtake agreements support recurring construction and fit-out demand.

Cooling and Sovereign Campuses Lead Growth

Construction and civil works remain the largest component, but cooling systems grow at an estimated 13.6% CAGR through 2035 as liquid cooling spreads. Sovereign AI campuses rise at 12.8% and AI and GPU cloud tenants at 12.1%.

OpenAI and NEXTDC Define the AI Campus Template

In December 2025, OpenAI and NEXTDC signed a memorandum of understanding for a sovereign AI campus at Eastern Creek in western Sydney, setting a template for offtaker-anchored builds.

• Indicated investment of about AUD 7 billion
• Planned capacity of 650 MW for the S7 campus
• First stage expected in the second half of 2027, subject to approvals

Australia Hyperscale Data Center Market Report Summary

Key Insight

Power access, platform commitments and sovereign AI ambitions shape the outlook. Construction leads spending today, while cooling and AI-focused campuses expand fastest as rack densities climb.

Key Trends in the Australia Hyperscale Data Center Market

Grid, planning and sustainability rules now shape where hyperscale capacity can be built, and 2026 brought the clearest signals yet from federal, state and market authorities.

August 2026 - AEMO Forecasts Data Centre Electricity Use to Multiply

• AEMO's 2026 electricity statement projects data centre consumption rising from about 5 TWh today to about 34 TWh by 2035-36 under its central scenario.
• The share of national electricity market consumption would rise from about 3% to 13%, with New South Wales holding 66% of consumption and Victoria 30%.
• Average fleet utilisation was only about 27% in the latest year, so AEMO expects it to climb as the fleet matures.

August 2026 - Victoria Publishes Its Data Centre Action Plan

• The plan requires developers to fund their own connection costs and upstream network upgrades, and to join demand flexibility services where feasible.
• It bans data centres on residential-zoned land, applies a 150 metre buffer to homes, and sets water usage effectiveness targets of 1.0 potable and 1.6 non-potable.
• Operators must offset electricity use through new renewable generation and storage, and detailed siting guidance is due in 2027.

July 2026 - AEMO Reports Data Centre Demand Surging in Two States

• AEMO's June quarter 2026 report found Victorian data centre demand doubled to average 204 MW, while New South Wales demand rose 35% to 435 MW.
• Seventeen data centres with 9 GW of maximum connection capacity were moving through the transmission connection process.
• Over half the new capacity sits in New South Wales, and about a third in Victoria.

March 2026 - Canberra Sets National Expectations for Data Centres

• The Australian Government released five expectations covering national interest, energy, water, workforce and innovation, as part of its National AI Plan.
• New facilities are expected to fund additional renewable generation, bear their share of network costs and take part in demand flexibility.
• The expectations are not regulation but will be used to prioritise projects through Commonwealth processes.

Key Insight

Regulators are linking approval to power, water and sovereignty outcomes. Developers that bring their own renewable supply, closed-loop cooling and flexible demand gain a practical advantage in queues and planning.

Recent Market Developments in the Australia Hyperscale Data Center Market

Recent developments, presented from the most recent, show capital flowing to new states, larger campuses and AI-specific builds, even as tax and planning questions remain open.

August 2026 - NEXTDC Reports Record Contracting and Plans a Larger Melbourne Campus

• NEXTDC's full-year results showed contracted utilisation rising to 740.1 MW and built capacity reaching 287.9 MW at 30 June 2026.
• The company guided to capital investment of AUD 5.25 billion to AUD 5.75 billion for the coming year.
• It acquired a Melbourne site for M5, with planning for up to 1.2 GW of IT capacity.

August 2026 - Zerra DC Lodges a 1.44 GW Campus Application in Queensland

• The Western Downs Digital Park, near Dalby, is planned as four 360 MW buildings at an estimated cost of AUD 14.5 billion excluding GST.
• The application is under assessment by Western Downs Regional Council and has not been approved.
• Cooling is designed as primarily air-cooled and closed loop, since town water is about 15 km away.

June 2026 - IREN Announces an 800 MW Campus in South Australia

• IREN announced its first Australian data center campus, planned at 800 MW and linked to local energy grids.
• Construction is planned in phases, though no timeline or total capital cost has been disclosed.
• The announcement marks a shift of AI-focused capacity beyond Sydney and Melbourne.

April 2026 - Microsoft Commits AUD 25 Billion to Australian Cloud and AI Capacity

• Satya Nadella announced the commitment in Sydney, covering capital and operating spending through the end of 2029.
• Microsoft expects its Australian cloud footprint to grow by more than 140% across its 29 existing sites in three Azure regions.
• The package follows the federal expectations published in March 2026.

Key Insight

Capital is moving to larger, AI-specific campuses and to states beyond Sydney and Melbourne. Several projects still await approval, so announced scale and delivered capacity can differ materially.

Australia Hyperscale Data Center Industry Segmentation

The Expert Market Research’s report on the Australia Hyperscale Data Center Market offers a detailed analysis of the market based on the following segments.

Market Breakup by Component

• Construction and Civil Works
• Power Infrastructure
• Cooling Systems
• IT and Compute Infrastructure
• Others

Construction and Civil Works lead spending, reflected in the 4,000 construction jobs AirTrunk expects for its Melbourne campus announced in December 2025. Power Infrastructure covers substations, switchgear, backup and batteries, shaped by AEMO's 9 GW connection pipeline reported in July 2026. Cooling Systems grow fastest at an estimated 13.6% CAGR, as the OpenAI and NEXTDC campus specifies closed-loop liquid cooling. IT and Compute Infrastructure covers servers, GPUs and racks installed in hyperscale halls. Others includes security, fire protection, monitoring and commissioning services.

Market Breakup by Ownership Model

• Wholesale Colocation Campuses
• Hyperscaler Self-Build
• Build-to-Suit and Powered Shell
• Sovereign AI Campuses
• Others

Wholesale Colocation Campuses lead, as AirTrunk, NEXTDC and CDC lease large halls to cloud tenants; CDC reported about 140 MW of contract wins in six months to March 2026. Hyperscaler Self-Build includes Amazon's AUD 20 billion plan from June 2025. Build-to-Suit and Powered Shell covers tenant-specified buildings, such as the 162 MW Port Melbourne campus approved by Victoria in February 2026. Sovereign AI Campuses grow fastest at an estimated 12.8% CAGR, led by the Eastern Creek S7 project. Others covers smaller enterprise-anchored builds.

Market Breakup by End User

• Cloud Service Providers
• AI and GPU Cloud Providers
• Government and Defence
• Enterprises and Financial Services
• Others

Cloud Service Providers lead, as Microsoft planned a 140% footprint expansion in April 2026 and Amazon Web Services keeps adding Sydney and Melbourne capacity. AI and GPU Cloud Providers grow fastest at an estimated 12.1% CAGR, with OpenAI named initial offtaker for the S7 campus in December 2025. Government and Defence demand is tied to sovereignty, and CDC linked its Perth campus to AUKUS in August 2025. Enterprises and Financial Services lease through colocation, with Commonwealth Bank among OpenAI's local partners. Others covers research bodies and telecommunications carriers.

Market Breakup by Region

• New South Wales
• Victoria
• Queensland
• Western Australia
• South Australia
• Others

New South Wales dominates, holding 66% of national data centre electricity use in AEMO's August 2026 statement, and grows at an estimated 9.8% CAGR. Victoria follows at 11.2%, helped by AirTrunk's Melbourne expansion and NEXTDC's Port Melbourne approval. Queensland grows at 11.8%, with Zerra's Western Downs application lodged in August 2026. Western Australia rises at 11.4% as CDC builds at Maddington. South Australia is fastest at 12.4%, after IREN's June 2026 announcement. Others covers Tasmania, the ACT and the Northern Territory at 9.6%, including Canberra campuses.

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If you choose to purchase the full report at a later stage, the amount already paid will be adjusted, and you will only need to pay the remaining balance.

Competitive Landscape in the Australia Hyperscale Data Center Market

Competition combines hyperscale colocation developers, cloud platforms that build their own capacity and new AI-focused entrants. Barriers include secured grid connections, large pools of patient capital, planning approvals and long-term tenant commitments.

AirTrunk

AirTrunk, headquartered in Sydney, develops and operates hyperscale campuses for cloud and AI tenants and is owned by Blackstone and CPP Investments. In December 2025 it announced a Melbourne campus, MEL2, of more than 354 MW and more than AUD 5 billion, taking Melbourne above 630 MW and its Australian campuses to five with over 1.2 GW. The platform exceeds 2.6 GW across six markets.

NEXTDC

NEXTDC, headquartered in Brisbane, is an ASX-listed operator of carrier-neutral data centres from Sydney to Perth. In August 2026 it reported contracted utilisation of 740.1 MW, a forward order book of 565.1 MW and FY26 net revenue of AUD 405 million. In December 2025 it signed a memorandum of understanding with OpenAI for the 650 MW S7 campus at Eastern Creek in western Sydney.

CDC Data Centres

CDC Data Centres, headquartered in Canberra, builds and owns hyperscale and government campuses in Canberra, Sydney, Melbourne and Auckland, with Infratil holding 49.72%. In January 2026 operating capacity stood at 568 MW within a pipeline of 2,750 MW, and in March 2026 AUD 500 million of equity was provided. In August 2025 it announced a 200 MW Perth campus at Maddington.

Amazon Web Services

Amazon Web Services, part of Amazon, which is headquartered in Seattle, Washington, operates cloud regions in Sydney and Melbourne. In June 2025 it committed AUD 20 billion to expand Australian data center infrastructure from 2025 to 2029. It also agreed to buy over 170 MW from three new solar farms, joining eight existing solar and wind projects that together generate over 1.4 million MWh a year.

Other players operating in the Australia hyperscale data center market include Microsoft, Google, Oracle, Equinix, and Macquarie Technology Group, alongside developers such as Zerra DC and IREN, electricity networks, engineering contractors and cooling and power equipment suppliers serving Australian campuses.

Key Insight

Competition rests on secured power, patient capital, approved sites and anchor tenants rather than price alone. Colocation developers and cloud platforms both expand, while AI-focused entrants add new capacity.