SA's new nuclear plans: Why govt's claim that it's cheap power is false

Is nuclear energy really the cheapest form of energy generation? 

On Tuesday, Minister of Electricity Kgosientsho Ramokgopa announced that the government would procure 2 500MW of new nuclear energy. Nuclear power, like coal and oil-fired power and battery storage, can provide base-load power to keep the electricity system stable and balance wind and solar PV energy variability. 

Unlike fossil fuels, it also has a very low carbon footprint, although not as low as renewable energy. However, nuclear energy produces deadly radioactive waste, which the world has not yet found a safe way to dispose of.