Economic reports have always indicated that nuclear energy is one of the costliest sources of electricity in Australia. The Commonwealth Scientific and Industrial Research Organisation, jointly with the Australian Energy Market Operator, releases annually the GenCost report on energy generation costs. Of course, the latest results from GenCost show that nuclear power is several times more costly than renewables if costs of integration like storage and transmission upgrades are taken into consideration.

Although wind and solar continue to drop in price, nuclear is far from being financially competitive. According to CSIRO, nuclear comes with the highest capital expenditure among any energy technology. This is worsened by long timelines for construction and inflating total costs. The notable Small Modular Reactors often presented as a more viable nuclear alternative carry equally high development costs with no commercial acceptance at scale yet.

Why Private Sector Shuns Nuclear

Despite the fact that the world keeps debating about nuclear power, the private sector hardly shows interest to invest in nuclear power plants. The main reasons for this include capital intensity at initial investment, a vague model of revenue generation, and uncertainties of the political or regulatory systems of respective nations. This increases the time periods of the payout, thereby causing a hassle among investors for easy returns. Unlike renewables, which can build on existing subsidies and market mechanisms, nuclear power does not have a clear economic pathway for profitability in Australia. Australia has long-standing federal and state bans on nuclear energy. These laws will be repealed with a political consensus that remains unlikely due to public opposition and the fears over nuclear waste disposal. With wind, solar, and battery storage becoming cheaper by the day, it’s increasingly becoming impossible for nuclear to compete in an investor-led market that perceives renewables as the cheapest and scalable source of power.

Is Nuclear Economically Viable?

While the GenCost report paints nuclear power in a rather poor financial light, alternative studies, such as those from Frontier Economics, claim that including nuclear in Australia’s energy mix will reduce overall system costs. These studies claim that nuclear could provide consistent baseload power, reducing reliance on energy storage and grid stabilisation measures required for renewables. However, the critics consider the projections of these reports are quite optimistic, assuming that there will be cost reductions in nuclear technology that have not even started to show up in the global market.

Policy and Legislative Barriers

Legislative policy is one of the important barriers for the development of nuclear in Australia. Nuclear energy has been effectively banned in this country since the 1998 Environment Protection and Biodiversity Conservation Act. Though people are talking about abolishing such bans, that would be a long and very political process. Nuclear power, too, takes long lead times. Even if Australia were to give the nod to nuclear power today, it would be at least 15-20 years before a plant could come onstream. And by then, the renewable sector will have marched further ahead and nuclear will have become even more uncompetitive.

Public Perception and Environmental Factors

Public perception is quite important in Australia’s nuclear debate. While nuclear is touted as a low-carbon alternative to fossil fuels, radioactive waste management, potential environmental risks, and the costs of decommissioning old plants present major deterrents. Australia’s natural position on sunlight and wind makes it easily positioned to make the most out of renewables; hence, this proposition of nuclear seems unnecessary.