> On the note of uranium, the energy density of uranium is such that fuel extraction is less than 1% of nuclear's total cost (fuel enrichment, is a different st

> On the note of uranium, the energy density of uranium is such that fuel extraction is less than 1% of nuclear's total cost (fuel enrichment, is a different story, but that's not a mineral extraction problem). Only the high grade stuff (which is the minority and will not be part of any massive expansion). The energy density of ore from Rossing is about 80MJe/kg in an AP1000 or 40MJe/kg in an older reactor (edit: double counted enrichment before). Barely more than coal. Half of available ore is even worse. Meeting the scale of renewables would require mining or leaching a quantity of ore on the same scale as total world iron ore production.