State Sets Rules as Data Centres Claim More Power

Australia’s national cabinet agreed to require data-centre operators to bring forward new renewable power to offset the electricity their facilities demand. Queensland secured an exception allowing some gas use where it wouldn’t raise household bills. New South Wales had separately planned to require data centres to source at least 40% of their electricity from wind. The decisions put governments between fast-growing corporate demand and communities concerned about energy, while the infrastructure needed to meet that demand remains slow to build.

Who Gets the Power

Data-centre electricity use is expected to rise from 3% of Australia’s total supply to about 13% by 2035. About 165 data centres operate, with another 225 in development. These facilities support cloud and AI services, but their growing appetite for power makes it harder to ignore who gets access to energy.

NAB executive, specialised finance, sustainability &innovation Jacqueline Fox said, “We know growth in this sector presents substantial economic opportunities, but these have to be balanced against legitimate community concerns, including around energy. Australia will only realise the full benefits of growth if communities understand, trust and share in those benefits.” Her statement puts public trust alongside investment as a condition for expansion; the source describes government standards and corporate planning, but no community-led decision-making process.

The timing is tight. A data centre might be delivered in two years, while a large utility-scale renewable project can take more than four years and have a 20-year payback. A large solar farm typically takes around 41 months from initiation through planning, approvals, construction and commissioning. A large onshore wind farm typically takes more than six years, and complex projects take longer.

NEXTDC group treasurer Mark Bower said energy projects ideally needed to come online within about two years to match data-centre development. “These deployments are mobile,” Bower said. “They will pass Australia by if we cannot meet the demand timing of data centre customers.” Projects can move quickly; communities and the grid expected to supply them must negotiate the consequences of that speed.

The Investment Machine

The financing figures show the scale of the build-out. McKinsey estimates technology companies will invest $US7 trillion in data centres by 2030. Amazon, Microsoft, Alphabet and Meta had signed leases worth more than $US1.5 trillion since the AI boom began, including commitments not yet in effect. AirTrunk secured a A$4.25 billion ($3 billion) green loan to develop a Sydney data-centre campus. The project is expected to support more than 10,000 jobs across construction, trades, engineering, logistics and safety.

Banks alone will be stretched by the investment required, said Archit Goradia, NAB executive director, sector lead – technology. “As a result, we've been actively working to ensure there are deep and functioning capital markets that can be readily relied upon to deploy capital at scale,” he said. Operators are considering asset-backed securities, US 4A2 and 144A transactions, project bonds, project finance and corporate debt. The funding machinery is widening to support projects whose power, customers and eventual returns still need scrutiny.

Roundtable participants said investors should distinguish operators with real customers, long contracts, development capability and secure power from speculative proposals built on AI enthusiasm. AirTrunk vice-president and group treasurer Luke Stephens said lending to numerous operators doesn’t automatically diversify risk. “I wouldn't put my hard-earned dollars into every data-centre deal getting done in Australia,” he said. He identified customer demand, power and water security, development and operator quality as factors investors need to assess.

Who Pays for the Timing Gap

Energy companies and lenders also need confidence that data-centre operators can support major generation projects. Tilt Renewables chief executive Anthony Fowler said renewable developers might struggle to rely on long-term power contracts from speculative or sub-investment-grade customers. “The last thing that we would want is for you to underwrite a big piece of multibillion-dollar infrastructure and then go bankrupt,” Fowler said.

Rob Bartrop, AirTrunk associate vice-president for social impact and community, said an illustrative 5 gigawatts of data-centre demand in 10 years could require 10 to 15 gigawatts of renewable generation. Planners, he said, must decide where computing capacity and power should go, including whether facilities should sit near generation or connect through transmission and fibre. Better coordination could make data centres foundation customers for new generation, which could also support electric vehicles, broader electrification and the replacement of retiring coal-fired power.

The Nonowie wind project near Whyalla illustrates the bargain under discussion. Fowler said Tilt Renewables’ proposed 1.2-gigawatt project would be unusually large for a state with average demand of 1.5 gigawatts and difficult to commercialise without a large new customer. A foundation contract with a data-centre operator could unlock it within a handful of years. Fowler proposed a gradual path: use the existing grid, contract progressively more renewable supply, and ultimately show that data-centre growth added clean generation rather than displaced other users.

The community expectation, Stephens said, is that a new large data centre should have green electricity “day zero.” He also said, “Communities rightly expect new infrastructure to support the transition to cleaner energy. Delivering that outcome requires coordination across developers, utilities, governments and energy providers, because new renewable generation, firming and transmission cannot always be delivered on the same timeframe as a new facility.” The state can set standards, companies can shift investment, and the grid must absorb the mismatch. “Building out Australia's capability is 'going to be a process',” Stephens said.