Seizing the opportunity to do data centres right - Climate Council

The Climate Council has released a statement calling for data centres to be "done right" during Australia's electricity transition, citing the scale of projected demand and the need for coordinated planning to manage grid impacts.

Where this fits

Data centres are a major new load on the grid at precisely the moment when dispatchable generation is being retired faster than it can be replaced. The Climate Council's framing, that data centres should be planned for, not bolted on, points to a cost and reliability pressure that has barely entered public debate. Large data centres require either firm power on-site or firm power in the grid to draw from. If they are to be served by renewables alone, the firming costs (batteries, interconnectors, demand management) multiply with each additional megawatt of load. This is not a climate issue; it is a grid engineering issue.

What it means

Australia faces a choice: either data centres are sited and built around existing or planned firm generation, or the transition cost of the entire grid rises to accommodate their load as an undispatchable variable. The latter path means either massive overbuild of renewable capacity (with all its land-use and material costs), or frequent recourse to demand shedding during tight supply periods. The former requires planning, co-investment, and a willingness to build generation to serve demand rather than demand to fit renewable supply. Neither option is free. The Climate Council's call for coordination is sound; whether Australia's state and federal institutions are equipped to deliver it is another question.