Power struggle: The push for Australia’s coal plants to pay to pollute - SMH.com.au

The federal government is considering carbon pricing for coal-fired power plants as part of its climate policy. The proposal would impose a cost on emissions from Australia's remaining coal generators, part of a broader push to reduce fossil fuel generation and accelerate the transition to renewables.

Where this fits

Carbon pricing on coal addresses emissions but does not solve the grid reliability problem that will define the next decade. As coal plants retire on schedule, Australia is replacing firm, dispatchable capacity with weather-dependent renewables that require either gas peaking plants for firming or massive battery and transmission buildout. A carbon price makes coal more expensive; it does not make the sun shine at night or the wind blow on demand. The real cost of the transition, the sum of renewables, firming, interconnection, and system-scale storage, remains the unpriced problem.

What it means

A carbon tax on coal accelerates retirements without addressing what replaces the reliability coal provided. Australia's grid will lean more heavily on gas for firming, locking in decades of fossil-fuel dependence for weather-smoothing, while the transmission network expands to ferry variable output across the continent at public cost. The firm, low-emission alternative, nuclear power, remains illegal under national law, foreclosing the one option that would deliver carbon reduction and grid stability on the same asset. Until that legal ban is removed, carbon pricing on coal is a policy that raises electricity costs and grid risk simultaneously.