Comment Re:Smells fishy to me (Score 0) 144
You're forgetting the heavy dependence on rare earth element mining used in wind and solar (and batteries), 95% of the world's supply comes from China, which requires manufacturing in China and is highly subsidized by the Chinese government. China strip mines the elements and dumps the radioactive waste that comes with rare earth elements into landfills, which the US is required to sort and cask, so China can vastly undercut prices.
The absolute irony here is the largest Rare Earth Element deposit and mine is... in California. The US only uses it for the military because it is cheaper to buy the Chinese subsidized parts, but the military rightly doesn't trust them so uses US manufacturing. The US geological survey has identified 7 more major deposits (last I checked) and potentially 2 more that may be major deposits in the Unites States. Trump's push to secure more REE deposits for the United States is hilarious. The US already has them - subsidize them in the same way China does and people will build roads to those remote deposits and mine them.
In any case, my point is Wind and Solar are not exactly free of problems including waste issues, and they do wear out over time and need to be replaced. You also often need a means of storing the energy. Not in every case, of course - my grandpa's hand built windmill and generator was pumping water before he even got electricity to the house (out in farm country, that was 1950s) and was still running in the late 1980s when he retired.
Some SMRs generating more waste from the parent is nice cherry picking, of course some will be less efficient than conventional reactors, especially any built on conventional designs. The example used is X-Energy, which uses a pebble bed fast reactor cycle that promotes what we call nuclear waste to fissile plutonium and then burns that, so in theory it will have much less waste and be able to operate much longer without refueling (X-Energy thinks 60 years). Like all Gen IV designs, it is required to be passively safe, and yes, the only non-skeptical words from OP that are true is it will require more expensive and higher enriched starter fuel - all fast reactors require this, and Russia and China are the only countries with them right now, which is why they dominate the supply. The US canceled developing one in 1994 on a bunch of false pretenses (really, the only true one was potential proliferation risk).
I'm not entirely sold that SMRs are the right direction, but I do believe fast reactors are, which is the majority of Gen IV designs, if not all of them.