Nuclear Power is generated from the nuclear energy as result of two types of nuclear reactions namely: Nuclear Fission and Nuclear Fusion. In nuclear fission, the atom is broken into small fragments and releases energy. In nuclear fusion, smaller atoms fuse together to form the heavier atom. Mostly, nuclear power plants use fission to generate electricity. In the current scenario, the nuclear fission of actinide series generates a high amount of nuclear energy for the human purpose. Rest of the energy comes from nuclear decay process, in the form of geothermal energy and radioisotope thermoelectric generators. Fission-electric power stations and engines have and still be designed, as an alternative to the dominant fossil-fuel power systems of the planet. Fission-electricity is one among the leading low carbon power generation ways of generating electricity, and in terms of total life-cycle greenhouse gas emissions per unit of energy generated, has emission values under renewable energy once the latter is taken as one energy supply.