Melbourne’s 350-Hectare AI Data Centre: What It Means for Australian Small Business

A 350-hectare data centre in Melbourne’s outer west might be the most consequential piece of tech infrastructure Australia has ever attempted. Bigger than 175 MCG fields. Requiring 2.4 gigawatts of power, more than the entire output of Victoria’s Loy Yang A coal station. Needing its own gas turbines because plugging straight into the grid would trip it.

The project, called the Victorian AI Hub, is planned for Plumpton. According to The Age (29 May 2026), it’s the largest data centre ever publicly proposed in Australia.

So what does any of this mean for the small business owner running their accounting in Xero and a few AI tools on the side?

The optimistic case: cheaper AI is coming to Australia

Right now, most AI compute that Australian businesses use routes through servers in the United States. That costs money in latency, in data transfer fees, and in the margin providers tack on for international capacity.

A 2.4GW facility in Melbourne changes the maths. If hyperscalers like Microsoft, Google, or Amazon fill it up, Australian cloud regions get bigger and cheaper. API calls to GPT-4o or Claude that currently run from Sydney data centres with limited capacity could get faster and less expensive.

This isn’t guaranteed. But the pattern has held in other markets: when local capacity increases, prices eventually follow down.

Data sovereignty is the other angle. Many Australian businesses, especially those in health, finance, or government contracting, need their data to stay onshore. A facility this size makes that cheaper to guarantee.

The realistic case: who actually captures the value?

The Victorian AI Hub, if it proceeds, will primarily serve hyperscalers and large enterprise customers. The economics of a 350-hectare facility don’t exist to give a Geelong bookkeeper better AI pricing. They exist to land Microsoft Azure’s next Australian region or support a hyperscaler’s model training workload.

That’s not bad for small businesses exactly, because those hyperscalers provide the platforms SMBs run on. But the direct benefit is indirect at best. The small business that gains most is the one already using AWS or Azure, where increased regional capacity eventually flows through to lower pricing tiers. The one running a local open-source model on their own server won’t see much change either way.

Power and energy costs: the uncomfortable question

2.4 gigawatts is a number worth pausing on. Loy Yang A, Victoria’s largest coal plant, has a total generating capacity of 2.2GW, according to the Victorian Department of Energy, Environment and Climate Action. The Victorian AI Hub would draw more power than that entire station produces.

The developers plan to run their own gas turbines to handle this load without destabilising the grid. That sidesteps one problem but doesn’t answer what happens to electricity prices in Victoria as demand spikes.

Energy prices are already a serious concern for small businesses. The Australian Energy Market Operator’s 2025 Electricity Statement of Opportunities flagged persistent tight supply conditions across the NEM. A facility drawing 2.4GW, even off-grid initially, competes for the same gas supply, the same workers, and eventually the same grid connections as everyone else.

No direct line runs from this development to your power bill going up. But it’s a fair question to keep watching.

Jobs and the local economy

Plumpton is in Melbourne’s outer west, a corridor that’s seen strong residential growth but less commercial and industrial investment. A project this size brings construction jobs first, then permanent operational roles.

The flow-on from construction alone at this scale runs into the billions. Local suppliers, contractors, and service businesses in the Melton and Wyndham areas would be first in line. That’s a concrete benefit that doesn’t depend on whether the AI market matures exactly as planned.

The honest verdict

The Victorian AI Hub will matter for Australian small businesses, but the timeline is long and the benefits arrive filtered. Cheaper, more local AI compute is a real possibility in the three-to-five-year range. Data sovereignty becomes easier. Jobs come to the western suburbs.

The power consumption question doesn’t have a clean answer yet. And the headline beneficiaries of a facility at this scale are global tech companies, not the small business in Footscray trying to automate their invoicing.

Watch this one. Planning approvals and power agreements will determine how much of the value actually lands locally.

Sources

• The Age, 29 May 2026: As big as 175 MCG fields: the mega data centre coming to Melbourne’s west
• Victorian Department of Energy, Environment and Climate Action: Energy in Victoria
• Australian Energy Market Operator: Electricity Statement of Opportunities 2025

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