The problem with the Australian Coalition's nuclear plan is it isn't a nuclear plan. It's a coal plan disguised as a nuclear plan. They're a party that's bought and paid for by coal interests who were in power recently for a decade and did nothing to kickstart nuclear. They got voted out partly due to inaction on climate change so they realised they need to propose something. Their half-hearted proposal will deliver less than 15% of the grid to nuclear by 2040, while stopping renewables, and being more expensive.

Beyond the political, here's some more technical reasons why Australia shouldn't pursue it: https://news.ycombinator.com/item?id=40747810