My Daily Advertiser Op Ed column for Tuesday 30 January 2024
Dangers of nuclear energy
Supporters for a nuclear energy industry in Australia increased their disinformation media activity following the announcement of the AUKUS agreement. Internationally the campaign reached a crescendo during the COP28 climate meeting. As a federal election looms this year no doubt the Coalition will also ramp up its advocacy of this hair-brained policy.
The misleading pro-nuclear campaign is based on incorrect claims that opposition to nuclear energy is based on irrational fears, that nuclear energy is necessary for climate mitigation, that new nuclear energy technologies will be cheaper and safer than existing ones, and that there are allegedly no scenarios for the transition to 100 per cent renewable energy. The disinformation, misinformation and outright lies smack of the No campaign during the Voice referendum, so the Coalition’s infatuation with this this madness.
“To the contrary, critiques of nuclear power have been published by physical and social scientists and engineers. They argue that, in the real world, nuclear energy is too expensive, too dangerous (both in terms of accidents and the proliferation of nuclear weapons), and too slow to plan and build. These issues determine the current status of nuclear power. Nuclear power’s share of world electricity production has been declining from its peak of 17.6% in 1996 to 9.2% in 2022” wrote Mark Diesendorf in Pearls and Irritations.
Because nuclear electricity from existing types of reactors is very expensive, proponents promote a new technology, the small modular reactor (SMR). ‘Small’ means generating capacity less than about one-third of existing large nuclear power reactors. ‘Modular’ means serial factory production of reactor components, which could reduce costs.
According to physicist MV Ramana, they “cost too much for the little electricity they produced, the result of both their low output and their poor performance”. They are unsuitable for mass production. So, small modular reactors do not exist.
Recent attempts to develop them depend on enormous subsidies, e.g. US 452M offered by the US Department of Energy. So far, the only SMR design approved by the US Nuclear Regulatory Commission was that of NuScale. In November 2023, after receiving huge grants for which it did not have to compete, NuScale terminated its SMR project.
The most recent (Generation III+) large reactors under construction in Europe and the USA have been economic disasters, taking much longer to construct than planned and costing over three times original estimates.
Studies by the LUT and Stanford research groups cited above show that energy futures based on 100% renewable energy, including electrified transportation and heating, are cheaper than nuclear scenarios.
At the level of individual power stations, the multinational investment advisor Lazard finds that nuclear electricity is several times as expensive as wind and solar. In Australia, the annual CSIRO GenCost studies, performed with extensive stakeholder consultation, find that electricity generated by large-scale wind and solar farms, together with storage and connection to the local transmission grid, is much cheaper than from a hypothetical SMR.
Nuclear proponents argue that the method used by CSIRO, which is based on the levelised cost of electricity, does not include the cost of upgrading the main transmission system. However, CSIRO have used the standard method, for good reason. The system would still have to be upgraded if Australia’s zero-carbon electricity generation were based partly on nuclear. Electrifying transportation and combustion heating will substantially increase demand on the grid which will require major grid augmentation.
Nuclear power stations take a long time to plan and build. At present Australians are divided on nuclear energy and very few would accept a reactor or waste repository in their locality. At best, an autocratic government could possibly get one nuclear power station operating by the time Australia had 100% renewable electricity.
And of course, there’s the pesky question of where to store nuclear waste. We still haven’t come up with a site for the waste from our existing and very small Lucas Hights medical nuclear facility. So finding sites for the waste from multiple facilities, whether large or small, renders nuclear power untenable.
So to the rational mind, nuclear power has no future role in Australia and the claims for future cheap electricity from new, allegedly safe, nuclear technologies are baseless fantasies. Thankfully the Greens can see this, and so far Labor has resisted the temptation. Stay firm, Mr Albanese.