Jim Chalmers has criticized the Coalition's nuclear power proposal as "economic insanity" ahead of a significant speech by opposition leader Peter Dutton, who is expected to elaborate on the policy. Chalmers, the federal treasurer, argued that the plan to construct seven nuclear reactors across five states would lead to higher costs, increased prices, and extended timelines. The Coalition has announced intentions to build these nuclear power plants, with the first expected to be operational between 2035 and 2037, should they secure victory in the upcoming election. Chalmers dismissed the proposal as a "fantasy," emphasizing the economic drawbacks associated with such an initiative.