Comment by Propelloni
14 hours ago
> other renewables
Nuclear power is not a renewable power source in the technical correct meaning of the word. Fission material is "only" abundant, in that we can win nuclear fission material from many sources, including recycling spent nuclear material, but it is not available and spent without human intervention (otherwise we could argue fossil fuels are renewables, too).
As an aside, nuclear fission power differs from renewable power in many other ways, too. It is not clean, it is not easy to harvest, it is not safe, it is not cheap, it is not a mass job engine, it is not low-maintenance, it has less utility, and it has less flexibility.
IF the world got its primary energy from today's kind of light water reactors, uranium available at up to 3x the current price would only last for about five years.
A fully nuclear-powered world (including all energy use, not just grid electricity) would need breeding of some kind; otherwise the uranium just gets too expensive. So when you hear people claiming nuclear is cheap, ask them if that cheapness includes the technologies that would actually be needed for nuclear to do the full job.
If we needed more nuclear fuel we would be producing more of it. Comparing current production to a world where we use a thousand times more of it is ridiculous. Uranium is not that rare, and spent fuel rods still have well over 90% of their potency so they can be recycled.
Nuclear energy could easily power the entire planet for thousands of years.
Sure, we could produce more. It would have to be from much lower grade ores, and so would be much more expensive and disruptive. This is why breeding would be needed, so the cost of the uranium would not make nuclear even more unaffordable than it already is.
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