What were the biggest Australian data centre and AI infrastructure announcements in the last 90 days?

Microsoft’s A$25 billion commitment on 23 April 2026, AWS’s nine renewable PPAs adding 430MW on 16 April, the Anthropic-Australia MoU under the National AI Plan, the Department of Industry’s national expectations framework on 23 March, NVIDIA GTC 2026 launching the Vera Rubin platform, IREN’s US$3.4 billion NVIDIA contract and 2028 Australian plan, and the first independent DCA × DC Byte forecast on 28 April.

How much new capital was committed to Australian AI infrastructure this quarter?

Microsoft committed A$25 billion to 2029. AWS sits within a A$20 billion infrastructure plan with A$2.8 billion in local renewables. OpenAI’s A$7 billion NEXTDC S7 deal continues to deploy. NEXTDC opened a A$2.2 billion capital programme. Firmus is backed by a US$10 billion debt facility. CDC signed a single 555MW hyperscale contract worth “tens of billions” over 30 years. Quarterly committed spend now exceeds the entire 2025 local colocation market revenue of US$2.1 billion.

How are AI factories changing the scale of Australian data centres?

NVIDIA GTC 2026 (Vera Rubin, 800 VDC, megawatt-scale liquid cooling) is the new baseline. Per-site capacity now routinely exceeds 100MW: GreenSquareDC SYD1 96MW, CDC Perth 200MW, NEXTDC M3 225MW by 2027. Only 3 of 162 operational sites exceed 100MW today, but 15 of 90 pipeline projects do.

Five themes from a remarkable quarter for Australian data centre and AI infrastructure

At a glance

• Microsoft committed A$25 billion (US$18 billion) on 23 April 2026, AWS added 430MW of new renewables on 16 April, and OpenAI’s A$7 billion NEXTDC S7 deal continues to deploy from December 2025.

• The first DCA × DC Byte forecast (28 April 2026) put operational capacity at 1.4GW today and 3.2GW by 2030, with 16.8GW of the 21.6GW headline pipeline classified as “early stage” and not yet committed.

• AI factory economics from NVIDIA GTC 2026 lifted per-site capacity above 100MW (GreenSquareDC SYD1 96MW, CDC Perth 200MW, NEXTDC M3 225MW), with the neocloud pipeline above 1,600MW across at least five operators.

• A single CDC 555MW hyperscale contract signed on 6 May equals roughly 40 per cent of all Australian data centre power consumed in 2025.

• AGL’s 34TWh demand forecast sits 17 per cent above AEMO’s 29TWh and seven times current sector use of 5TWh, putting energy at the centre of every operator’s next-quarter conversation.

Theme 1: Capital landed at record scale

The local colocation market was worth US$2.1 billion in 2025. Multiple announcements this quarter each exceeded that annual base.

Microsoft’s A$25 billion commitment, announced by Satya Nadella alongside PM Albanese, expands Microsoft’s Australian footprint by more than 140 per cent by end-2029 and trains three million Australians in AI skills by 2028. The MoU behind it requires new projects to add matching electricity supply, use water sustainably and demonstrate national-interest alignment, formalising the same conditions as the Anthropic-Australia MoU.

AWS’s nine power purchase agreements on 16 April added 430MW of battery-backed renewables, taking Australian renewable investment to A$2.8 billion across 20 projects and 990MW, behind a A$20 billion infrastructure plan to 2029. OpenAI’s A$7 billion (US$4.6 billion) 550MW campus at NEXTDC’s S7 Eastern Creek, announced December 2025, is the largest single Australian AI facility committed to date.

Domestic operators matched the scale. NEXTDC opened a A$2.2 billion capital programme underwriting 350MW S4 Sydney at Horsley Park. Firmus secured a US$10 billion debt facility from Blackstone and Coatue. GreenSquareDC’s SYD1 Stage 2 was endorsed at 96MW. Sydney-headquartered IREN announced Australian operations from 2028 with a US$3.4 billion NVIDIA contract. AirTrunk acquired Lumina CloudInfra in India and committed A$4.2 billion to two Johor campuses.

Theme 2: AI factory economics rewrote per-site capacity

NVIDIA’s GTC 2026 announcements gave operators a new reference architecture. Vera Rubin, 800 VDC power and megawatt-scale liquid cooling distribution units are now the design baseline for AI-first builds.

The pipeline shows the new scale class. GreenSquareDC SYD1 Stage 2 at 96MW. CDC’s 200MW Perth campus plus a 555MW hyperscale contract signed 6 May worth “tens of billions” over 30 years. NEXTDC’s M3 to 225MW by 2027. The neocloud category is above 1,600MW across five operators, with ResetData, Sharon AI and Firmus inside NVIDIA’s Cloud Partner program. AirTrunk leads the latest Top 10 APAC ranking.

A 30MW to 50MW site was a major build three years ago. Today only 3 of 162 operational Australian data centres exceed 100MW, but 15 of 90 pipeline projects do.

Theme 3: The industry invited scrutiny on its own pipeline

On 28 April, DC Byte and Data Centres Australia published the first independent Australian forecast, pegging operational capacity at 1.4GW today and 3.2GW by 2030. The formal partnership was confirmed 12 May.

The deeper contribution is the four-phase framework. Of Australia’s 21.6GW disclosed pipeline, only 1.5GW is operational, 0.2GW under construction and 3.1GW committed with land, power and permits. The remaining 16.8GW is “early stage” and may or may not be built. That distinction lets planners, AEMO and Treasury work from a credible operational-and-committed number rather than headline totals. NSW’s Investment Delivery Authority has classified A$40.7 billion of proposals premature or speculative against A$51.9 billion fast-tracked, on the same logic.

Theme 4: Planning and community frameworks matured in public

The NSW Department of Industry, Science and Resources released its Expectations for data centres and AI infrastructure developers on 23 March 2026. The NSW consultation paper anchored on five principles closed on 8 May. The NSW parliamentary inquiry has more than 120 submissions on the record. Maribyrnong Council has formally opposed NEXTDC’s M3 expansion in West Footscray. Lane Cove Council has put on record that it considers itself “sidelined” on a 90MW Goodman proposal. The Bibbul Ngarma Aboriginal Association has raised a cultural objection to GreenSquareDC’s Hazelmere site tied to the Helena River.

Federal tax certainty is the missing piece. Google’s US$20 billion pause over permanent establishment risk is a significant capital decision still pending.

Theme 5: Energy is now the binding constraint

At the Macquarie Australia Conference on 6 May, AGL’s Damien Nicks told investors the NEM is “sharply underestimating” data centre demand, lifting AGL’s internal forecast to 34TWh against AEMO’s 29TWh, against current sector use of roughly 5TWh. The Australian Industry Group brackets the next five years at 35TWh to 70TWh. Morgan Stanley estimates A$8 to A$42 billion of new generation by 2030.

The industry response is forming on three tracks. Hyperscalers are signing PPAs directly; AWS’s 990MW portfolio with eight battery-storage hybrids is the public example. Operators are anchoring renewable underwriting, with sector energy-infrastructure contributions of A$3.1 billion to 2025 rising to A$7.2 billion by 2030 plus AirTrunk’s large-scale battery. The Commonwealth’s Expectation 2 now requires every new project to add new clean energy rather than draw from existing supply.

The pushback is credible too. CDC’s Greg Boorer has called headline demand numbers “fantasy”, arguing utilities double-count the same hyperscaler enquiries across pipelines. The 16.8GW of early-stage pipeline that DC Byte segments out gives that pushback a number set.

What to watch next quarter

The NSW inquiry’s final report. AEMO’s next Integrated System Plan and whether it adopts the DCA × DC Byte numbers. The next Commonwealth national-interest prioritisation statement. Whether Microsoft’s A$25 billion and AWS’s renewable additions convert into specific grid-connection agreements.