AI data centre expansion: the new geography of compute

The global AI infrastructure race is redrawing economic geography. The most powerful computing facilities being built by Amazon, Meta, Microsoft, Google and OpenAI are no longer clustering in technology corridors near major cities. They are moving to rural Indiana, the Louisiana bayou and the scrubland of West Texas — driven by three physical constraints that cannot be engineered away: power, water and social licence.

Executive summary

At gigawatt scale, a single AI data centre consumes more electricity than a city of 750,000 people, and cooling that compute can require millions of litres of water a day. The four largest hyperscalers spent roughly US$413 billion on data centre capex in 2025 — an 84% increase on 2024 — and Synergy Research counts 770 hyperscale projects in the global pipeline. Power availability, not proximity to population, is now the primary site-selection criterion.

The white paper traces that shift through five detailed US case studies and then examines the identical set of forces now emerging in Australia.

What the case studies show

AWS Project Rainier (New Carlisle, Indiana): US$11bn, 2.2 GW at full build, 500,000+ Trainium 2 chips, plus 635 MW of new wind and solar PPAs.
Meta Hyperion (Louisiana): a campus heading toward 5 GW, supported by ten new gas plants and 240 miles of new transmission.
OpenAI/Oracle Stargate (Abilene, Texas): selected from 300+ proposals across 30 states for cheap ERCOT wind power, land with no competing use, and a government eager to host it.
Microsoft Fairwater (Mount Pleasant, Wisconsin): US$7bn+, a dedicated 250 MW solar farm, and pre-paid energy and transmission infrastructure explicitly to insulate local ratepayers.
Google Zodiac and Tenaska (Indiana and Nebraska): 1–3 GW projects reshaping how host cities allocate industrial water.

The pattern is not simply remoteness. These projects are forcing entire energy and water systems into existence in regions that would never otherwise have attracted them — powerful economic development, and material risk where communities did not meaningfully consent to the trade-offs.

Why it matters in Australia

The City of Sydney has warned that if every proposed data centre proceeds they would need roughly 4.4 GW — the equivalent of 10 million households — and up to 25% of Sydney''s drinking water supply by 2035. AEMO projects data centre demand in NSW rising from 5% of grid load in 2024 to 11% by 2030. At least 89 Sydney data centres already draw from the public drinking water system.

Industry attention is already turning to the Hunter Valley, Geelong and Wollongong: close enough for fibre latency, but with industrial land, spare substation capacity and renewable energy zones. The NSW parliamentary inquiry reporting in September 2026 will accelerate that conversation, and the federal government issued its first formal Expectations of data centres and AI infrastructure developers in March 2026.

Five implications for developers, investors and boards

Treat power, renewable supply, water and community engagement as co-equal constraints from day one — not sequenced problems.
Regional sites with industrial infrastructure and renewable energy zones will increasingly out-compete metropolitan ones.
Social licence is a site-selection criterion, not a post-approval risk to mitigate. The Fairwater model outperforms the Hyperion model.
The March 2026 Expectations framework changes the commercial calculus: community outcomes and energy transition investment buy speed of approval.
Water is the sleeper constraint — engage water utilities and catchment authorities now.

Get the full white paper

The full paper includes the complete case-study tables (investment, capacity, power source, water strategy and community response for each project), the Australian policy analysis, and the full source list.

Download the AI Data Centre Expansion white paper →

Geoff Gourley is also involved in the Rosedale Energy Hub and Data Centre Development, integrating renewable generation, storage and next-generation digital infrastructure. Book a discovery call to discuss siting, energy strategy or social licence for your project.