Compute Economics

Data Centres: Economic Boom or Expensive Sheds?

Australia's data-centre pipeline is booming — tens of billions of dollars announced. But as researchers like UNSW's AI Institute keep asking: what's the true cost of that compute, and who actually benefits? Build a campus and audit it yourself.

Build Your Campus

Each hall is ~25 MW of IT load. Grow the campus, tune its efficiency (PUE) and cooling type, and watch the footprint numbers move. Drag to orbit.

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GWh / year
≈ homes' power use
ML water / year
permanent jobs
construction jobs (peak)
est. capex

The uncomfortable ratios

MetricRule of thumbWhy it matters
Jobs per 100 MW~30–80 permanent (ops, security, maintenance)Construction employs thousands for 2–3 years; operations employ few. The "jobs boom" is mostly temporary.
Power per 100 MW~1,100 GWh/yr at PUE 1.3 (≈ 170,000 homes)Australia's grid is already strained; data-centre demand competes with electrification of homes and transport.
Water (evaporative cooling)~1–2 GL/yr per 100 MW in hot climatesMeaningful in drought-prone regions; dry cooling trades water for ~2–4% more electricity.
Capex~A$10–15M per MW for AI-grade buildsBig headline numbers — but much of the spend goes to imported chips and equipment, not local supply chains.

How a country actually captures the value

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