For 3.8 billion years, nature has done nuclear fusion in rain or snow showers.
So the chaotic interaction of rain drops turn some into He and O gases, plus laods of heat. To study this system, we only need to dribble water out of a drop of more than 1m.
So clean, no polluting power – with no CO2. It does not produce Plutonium, so ti does not need the 100 billion per plant required by uranium nuclear power.
Molecular Nuclear Fusion is 4 times more energetic: google it – I have published laods.
So present nuclear power is illegal – and only operates as it bought of its regulars.
Free, non toxic heat – you want Molecular Nuclear Fusion. A 50x1cm steam plasma tube has hydrogen and oxygen ions in turbuletn flow with electrons.
The electrons and protons combine – gradually turning the mass into heat, light and X-rays.
2 H2O+TU ->E3+L+X-ray
Carbon 0 heat. A 50x1cm tube will produce a constant 2.4MW from 7x10-20cc of regular water a year. Once started off with the electrics from a fluorescent light, it runs unpowered at 4 atmospheres.
A small steam cycle will produce ½MW of electricity – supply 700 houses will free, carbon 0 power: that requires no impossible insurance.
Presenrt nuclear power has operated illegally since 1984 – the year of Chernobyl.