Can WA keep gas flowing as fields run down? - The Cairns Post

Western Australia's gas fields are depleting, raising questions about the state's ability to maintain gas supply as production declines over coming years.

Where this fits

This story bears directly on reliability and sovereignty. Gas is now the firming backbone of Australia's grid as coal retires and renewable capacity climbs. WA's gas depletion is a live example of the whole-system cost that renewable transition plans routinely undercount: when wind and solar output falls, the grid needs dispatchable power on standby, and that power has to come from somewhere. A renewables-heavy grid needs firm generation, gas, coal, or nuclear. Gas fields deplete. Coal plants age out. Only nuclear provides firm, low-emission power that does not require fuel imports or geological luck, yet it remains banned by law.

What it means

As WA's gas production falls, the state faces a choice between importing liquefied gas at volatile international prices, building new reserves through exploration (slow, capital-intensive, politically difficult), or accepting tighter supply. None of these options was baked into the renewable transition's cost estimates. A grid reliant on weather-dependent solar and wind cannot run without firm backup: the cost and security of that backup is a hidden cost of the transition. Australia is instead tightening its grip on a fuel it does not own, in a market it does not control, while forbidding the one low-carbon firm source that could be built at home, fueled for decades, and protected from supply shock.