The Korean Institute of Fusion Energy announced a new world record for the length of time it managed to sustain temperatures seven times hotter than the sun’s core
Particularly nuclear fusion, which doesn’t generate long-lived radioactive isotopes as byproducts of energy production. Nuclear fission still has a place to be sure, but once we crack the dilemmas with fusion all bets are off when it comes to generating huge amounts of clean energy.
Fission gets a bad rap. The amount of waste it produces is minuscule compared to the amount of waste generated by fossil fuels, and it’s generally easier to deal with too. Just needs actual proper maintenance and care.
The coal plants are decommissioning due to costs, renewable energy is booming, and (obviously due to the ban) there is no local nuclear industry or expertise. Even if you manage to lift the ban, which nobody is trying to do*, nuclear would not be replacing coal plants here, but might divert renewable funding. In other countries I have no doubt building more nuclear could offset coal, not here.
* The coalition claims to be in favour of nuclear power, but they've spruiked it before in opposition, and nothing gets tabled when they're in power. It's got as much chance of happening as high speed rail.
In 2021, Australia's electricity production reached 265 TWh, with coal accounting for 52.9% and natural gas for 18.8%. Renewable sources, comprising solar, wind, hydro, and bioenergy with waste, collectively made up 26.7% of the total electricity generation mix
If you want to get excited though, check the rapid rise of renewables.
Testing and stuff probably does by a tiny fraction, because they need to use insane amounts of power to get it started which is probably produced by coal/oil.
But once it's actually working and producing more power than it consumes it will be the best solution to stopping greenhouse gases for energy production. It would be the end of gas/oil/coal in the energy sector. Probably wouldn't even need to use solar or wind anymore.