Comment by defrost

There's a bit of a difference between countries with {nuclear weapons, nuclear power reactors, and nuclear enrichment and breeding programs} and countries without any of that.

The CSIRO costings include the estimated ten year lead time to build expertise and start education in order to have a sound foundation for a nuclear power industry coupled with the long construction lead times anticipated for first build with no priors.

It's of interest that they also "cost" / anticipate a future of SMRs (small modular reactors from third parties) and conclude that'll take a while and will come with some costs.

All in parallel with Australia also kick starting support for nuclear powered submarines in partnership with both the US and the UK in a random never the same twice plan of a vague but alluring (to some) nature.