The invasion of Ukraine underscores an argument in favour of nuclear power plants: they can afford their owners a security of electricity supply
s in Taishan, in southern China, after construction was already under way at Olkiluoto and Flamanville and finished by 2019.
At the same time as sending countries already interested in new nuclear plants in search of new companies to build them, the invasion of Ukraine also underscores a more general energy-security argument in favour of nuclear power plants: they can afford their owners a security of electricity supply. The’s reliance on Russian gas has boosted Russia’s income even as its artillery flattens Ukrainian cities; since mid-June, Russian moves to limit that supply have sent prices through the roof.
It has long been argued that this role might be taken by fossil-fuel-powered plants fitted with technology for carbon capture and storage and that may yet be the case; but there has been almost no deployment of the technology at large scale yet. Hydroelectricity and nuclear power are the only methods of producing such power without emitting carbon dioxide that have ever been deployed on a large scale.
These uncertainties reflect the fact that nuclear construction often fails to meet the high standards to which it is understandably held. When regulators notice things, they have to be put right. The concrete used at Olkiluoto was initially not up to scratch, with too much water in the mix. Then there were problems with the systems used to monitor and control the plant, leading to legal battles with two contractors, France’s Areva and Germany’s Siemens. Flamanville is dogged by faulty welding.
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