Worldwide, we “use” about 67,000 tons of uranium per year, 670 tons of which is actually used (the rest is stored). Nuclear power provides 20% of world electricity, and could provide 100%, requiring 3,350 tons per year. The US, being 5% of the world’s population, uses 25% of world energy; giving everyone American per-capita access to energy using nuclear power would require another five-fold increase in uranium consumption, assuming that the proportion of electricity out of total energy is the same worldwide–totaling 16,750 tons of uranium per year.
These eight Russian deposits contain 320,000 tons of uranium.
The math is not difficult: if their contents were used sensibly, these eight new mines could provide all the uranium needed to fuel all the nuclear power plants needed to provide American-style quantities of electricity to everyone in the world for almost twenty years.
Be reminded that this is 6% of worldwide uranium reserves. That’s enough to last almost 320 years. However, there are two other major sources of uranium: coal ash and seawater.
Uranium is present in coal ash at an average level of 4.5 parts per million. In the US–and this is just in the US–118 million tons of new coal ash are available every year. That comes out to 531 tons–about 80% of the world’s current uranium requirement.
Seawater is the big one, though. Uranium is present in seawater at an average level of 3.3 parts per billion. The oceans have about 1,500,000,000,000,000,000 tons of water and thus about 4,950,000,000 tons of uranium, with 35,000 tons added per year by runoff from rivers. Quite simply, as long as we use less than 35,000 tons of uranium per year, uranium from seawater is being made available faster than it is being consumed. Technically, it is a renewable resource.
But let’s say we only had that 4,950,000,000 tons to use at a rate of 16,750 tons per year. That will last us 295,000 years. And that’s not even counting thorium, which is another nuclear fuel that can produce just as much energy as uranium. More here.
So why do anti-nuclear activists say we’re going to run out of nuclear fuel?
Link.
Filed under Energy, Fuel Cycle, International, Sustainability