If I remember right, uranium can not be used right out of the ground. It has to be refined into some isotope. This adds to the cost.
Bozo :joker:
Actually, Canadians can use un-refined Uranium for energy! We do have to package it into fuel rods of course, but our Candu reactors will produce a self-sustaining, moderatable fission reaction from Uranium ore with 0.72% U-235 (the good stuff) no problem. (That's the naturally occuring percentage at the present life of our solar system, with the vast majority being the U-238.)
This isn't economically feasible in other countries because they lack our fresh water reserves (which we are selling off to the U.S. as fast as humanly possible as I speak). The reactors use pure heavy water as the moderator which requires an enormous amount of processed, natural fresh water to obtain. The advantages being that:
1. Deuterated water is easier to separate from normal (light) water than U-235 is from Uranium, because the relative mass differential is so much greater (2:1 vs 235:238). Oh ya, water is liquid at room temperature and Uranium needs to be vapourized, which is even more annoying because Uranium is also flammable/explosive which means vapourizing it is not fun...
2. Deuterated water does not absorb neutrons (the hydrogen has already got an extra) easily so, in this medium, sufficient neutron density and therefore critical mass are achieved at the natural Uranium ore concentrations of the isotopes. Yay!
3. When deuterium does capture a neutron we get tritium which is useful for a wide variety of applications.
If there was one country in the world that should be making widespread use of Nuclear power, it's Canada, but we're either too stupid or we're big pussies...