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

Yallourn, a 2,160 MW coal-fired power station in Victoria's Latrobe Valley, is due to close by 2032. The Herald Sun reports growing concerns in the region and across Victoria about the energy security implications of the closure, particularly given the loss of reliable dispatchable generation that Yallourn currently provides to the state grid.

Where this fits

This is a live case study in the reliability pressure. Yallourn has supplied about 20 per cent of Victoria's electricity and, critically, can ramp up or down on demand. Its retirement removes a firm generator without a like-for-like replacement committed. The state's grid will rely increasingly on renewable sources (wind and solar) whose output varies with weather, not demand. That variability creates a need for either backup dispatchable power, or else large and costly firming infrastructure: batteries, pumped hydro, or synchronous condensers. Victoria has not yet secured enough of these to cover the gap. The Latrobe Valley itself faces economic hardship as mining and power generation employment shrink without a clear transition plan.

What it means

Australia cannot retire dispatchable generation faster than it builds firm alternatives. Yallourn's closure marks the point at which Victoria's policy becomes a test of whether the grid can hold up under the strain. If the gap is filled by expensive, short-duration batteries and repeated spot-market spikes, the bill lands on households and industry. If it cannot be filled at all, rolling blackouts become a real risk. Either way, the state is discovering that the cost of a renewables transition is not the cost of panels and turbines alone: it is the cost of the entire system that keeps them reliable.