Even when in power and offering cash incentives, the LNP couldn't convince the power industry to extend coal power plant lifetimes or build new generators. Renewables have already won the free market, they will likely never be beaten in our lifetime. Good fucking luck getting any company that wants to actually make money to invest in nuclear.
The only reasonable argument left for nuclear is the baseline and storage argument, but again the writing is on the wall, industry can see the trajectory that batteries and storage tech is on and know that by the time they spend 2 decades investing in current gen nuclear, it will probably be beaten by storage in the free market anyway.
You can get close enough in most situations by looking at bolt size, thread pitch and the material. Some level of intuition and knowledge about what each fastener needs to do is also helpful.