Actually, the nuclear power can generate electricity about a million times more than fossil fuel power and with less fuel spend.
Because of these, for the time being, nuclear power is our only best hope for a source of clean power.
It does not need fossil fuels to run and its emission of carbon dioxide is minimal compared to fossil fuel power. And nuclear power can keep up the electric supply for the mass population because of it is high capacity workload of producing the electricity. Actually, more than 40 countries are now considering starting nuclear power programs.
We all know that there are risks of accident that could be fatal like it had happened before in the past. But nowadays, sciences and technologies are much more advanced compared to those ages (1970 - 1980s).Right now we have a digital controller with a computer aid which is more accurate and more reliable than a personal worker and we have a lesson from our mistakes in the past.