While a nuclear powered submarine has a number of advantages and the way to go, I dont think Nuclear power for electricity is cost efficient. I was reading somewhere that Solar energy is the most cost efficient to produce followed by Wind energy. Maybe it made sense 15 years ago, but Australia should go down the path of clean energy. We had such a massive head start with Solar energy over the rest of the world, but muddled thinking and petty politics pandering to the Coal vote bank has seen us fall behind almost every major country. Australia is way behind other developed countries in adapting electric cars. The recent development of Electricity companies being approved to CHARGE homeowners for supplying electricity is another classic example. Surely the solution is to invest in a more modern grid that caters to a more energy efficient world rather than enabling electricity companies to make more profit!! I think that is why China has certain advantages in planning and implementing these things as they dont have to worry about the next election 3 years down the road.