An informative post from John Quiggin...
The key problem is not safety but economics. New plants are safer and more sophisticated than those that failed in the past, but they are also massively more expensive to build, and quite costly to operate. The capital costs of recent projects in the US, France and Finland (none yet complete) have been around $10/kw, compared to $1/kw or less for solar. And, whereas solar PV is essentially costless to operate, the operating costs of nuclear power plants are around 2c/kwH. Even when solar PV is backed up with battery storage, it is cheaper to build and to operate, than new nuclear.
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