Nuclear energy is "largely irrelevant" with the nation already on the fast track to 100% renewables, says ANU Professor Andrew Blakers.

Peter Dutton’s "small modular reactors" would cost almost four times as much as renewables — with that gap widening a massive 30 per cent in six months.

Small scale nuclear reactors cost over four times as much as solar and wind, even after accounting for “firming” the renewables, new analysis reveals.

The $10 billion Clean Energy Finance Corporation has survived years of Coalition attacks - now it's become a darling of PM Scott Morrison.