As Yallourn power plant’s closure looms, fears are growing for Latrobe Valley — and Vic’s energy supply - Herald Sun

Yallourn power station in Victoria's Latrobe Valley is closing as scheduled, prompting local and state concerns about the region's economic prospects and Victoria's energy security. The closure removes a large, dispatchable coal generator from the grid at a time when Victoria is ramping renewables capacity but has not yet deployed equivalent firm generation to replace it.

Where this fits

This is the core reliability problem made concrete. Yallourn's 2,210 megawatts of firm, controllable output cannot be matched one-for-one by weather-dependent renewables; a renewables-only path requires either gas plants for firming (locking in fossil fuel burn for decades), or battery storage at a scale and cost that Victoria has not yet committed to building. The closure exposes the gap between renewable capacity installed and firm capacity needed. It also reveals a secondary cost: the Latrobe Valley's economic dependence on coal is being replaced by no coherent plan for equivalent employment or tax base, a pattern repeating across coal regions from Queensland to New South Wales.

What it means

Victoria is losing firm generation faster than it is adding firm alternatives. Until large-scale storage or new firm capacity, whether gas, hydro pumped storage, or the nuclear option currently barred by law, is online and operational, the grid carries higher weather risk and likely higher reliance on interstate power flows and gas backup. This is not a hypothetical: during periods of low wind and solar output, Victoria will need to draw power from other states or run gas plants at higher utilisation, both more expensive and less secure than the retired coal plant it is replacing. The economic hole in the Latrobe Valley, meanwhile, will not be filled by solar panel manufacturing; Australia's panel supply chain is owned by China, and the jobs are there, not here.