Tech giants’ energy demands are ‘crazy’, says SA premier - AFR

South Australia's premier has described the energy demands of technology companies as "crazy", flagging the strain that data centre and AI workloads are placing on the state's power system. The comment reflects growing tension between the lure of high-value tech investment and the finite capacity of a grid built around renewable energy with limited firming capacity.

Where this fits

This is a reliability and firm-power story. Tech companies need continuous, dispatchable electricity; South Australia's grid is 60% wind and solar, both weather-dependent. The state has gas peaking plants and some battery storage, but battery discharge cycles last hours, not the multi-day weather events that kill wind output. When major industrial load arrives, data centres running continuously, it exposes the mismatch between intermittent supply and firm demand. That gap is being filled by gas, the only firm generation source available under current policy. Nuclear, which is banned in Australia, would supply firm baseload at the lowest lifecycle emissions, eliminating the need for gas firming entirely. Instead, the state faces a choice: constrain investment, build expensive transmission to import firm power from other states, or burn more gas.

What it means

Australia is winning tech investment precisely because electricity is still relatively cheap and available. But if the grid cannot reliably supply it without burning more gas or importing power across interstate links, the cost of doing business here rises sharply. This is also a sovereignty issue: tech giants will locate where energy is secure and firm. If Australia cannot offer that without relying on interstate grid cooperation or fossil fuels, that competitive advantage erodes. The honest position is that a renewables-only grid requires either firm backup (gas, hydro, or nuclear) or load shedding during scarcity. South Australia has limited hydro and no nuclear option.