Inside Victoria’s Yallourn coal-fired power station - Toowoomba Chronicle

A visit inside Yallourn power station in Victoria's Latrobe Valley highlighted the scale and operational complexity of the coal-fired facility, which has been central to the state's electricity supply for decades.

Where this fits

Yallourn is a firm, dispatchable generator that has provided baseload power on demand, regardless of weather. As Victoria commits to closing coal stations and replacing them with renewables, the question of what maintains grid reliability during windless, cloudy periods becomes concrete. The article's focus on the operating station underscores what is being retired: a machine that runs when needed, not when the sun shines or wind blows. This is the reliability pressure point. Replacing Yallourn's guaranteed output with weather-dependent solar and wind requires either vast battery storage (whose cost and supply chain are themselves China-dependent), or sustained reliance on gas peaking plants burning fossil fuel for firming. Neither outcome is cheaper or lower-emission per unit of reliable electricity than keeping firm generation online.

What it means

Victoria's energy security rests on retiring its most reliable generator without a firm replacement ready. Battery storage remains expensive, immature at grid scale, and sourced almost entirely through Chinese supply chains. The transition assumes gas will backstop renewables indefinitely, which locks in ongoing emissions from peaking plants and exposes the grid to gas price shocks and international supply disruption. Australia has an energy-dense, low-emission firm alternative in nuclear, but it remains legally prohibited. The result is a grid that will be more expensive to operate, more vulnerable to weather volatility, more dependent on imported battery technology, and paradoxically more reliant on gas than a mixed renewable-nuclear future would require.