The Coalition and One Nation's proposed abandonment of Australia's net zero climate target is a controversial topic, and a recent CSIRO report sheds light on the potential consequences. The report challenges the notion that ditching net zero would lead to lower power prices, offering a nuanced perspective on the costs of electricity generation.
The Cost of Electricity Generation
The CSIRO's GenCost report reveals that generation costs will likely rise after 2030, regardless of Australia's net zero policy stance. This finding contradicts the Coalition and One Nation's claims, which suggest that abandoning net zero would provide a cost-effective solution for electricity generation. The report's key insights include:
Nuclear Power's High Cost: The report highlights that nuclear plants, a preferred option for the Coalition and One Nation, would be the most expensive way to generate electricity among current alternatives. This finding is particularly interesting given the political push for nuclear energy.
Gas Turbine Costs: The boom in power-hungry data centers in the United States is driving up gas turbine costs, impacting the overall electricity generation landscape.
Battery Technology's Role: Batteries are increasingly replacing gas in providing electricity during evening peaks in Australia, indicating a shift towards more sustainable energy storage solutions.
The Cost of Abatement
Paul Graham, CSIRO's chief energy economist, emphasizes that abandoning net zero does not offer a low-cost pathway for electricity. He explains that as coal plants retire, they must be replaced, and if these replacements are coal-based, the electricity generation costs remain similar to those expected with renewables. This perspective highlights the importance of abatement efforts in other sectors to achieve net zero.
Wholesale Electricity Prices
The report provides valuable insights into wholesale electricity prices, which account for only 33% of a retail electricity bill. Wholesale prices in the National Electricity Market peaked at $189 per megawatt hour in 2022 but dropped to $104 in 2025. Graham's analysis suggests that prices will likely stay below $100 per MWh in the coming years, but as coal plants retire and new generation is built, wholesale prices are expected to rise.
By 2050, prices will be influenced by the proportion of renewables, fuel costs, and climate policy choices. However, the report consistently shows that wholesale electricity costs are likely to exceed $120 per MWh, with the highest costs associated with nuclear power scenarios.
Conclusion: A Complex Energy Landscape
The CSIRO report presents a nuanced view of Australia's energy landscape, challenging simplistic political narratives. It highlights the complexity of achieving net zero, the role of various technologies, and the need for a comprehensive approach to energy policy. This analysis underscores the importance of informed decision-making, considering the long-term costs and environmental implications of different energy strategies.
