Conspiracy hat time: I think this is the main reason it's being pushed so hard. The US and Russia feel threatened by the rise of renewables and will do anything to get countries dependent on them again.
Any country that can figure out uranium processing can figure out solar panel production, and they are made entirely from common materials with advanced processing steps. Silicon is literally the most abundant element on the planet; other main ingredients include glass, aluminium (or any other support material) and copper (or any ither conductive material). The most obscure material you'd need is some kind of dopant, of which you have several alternative choices if you don't have access to the best ones for some reason. Solar cells are literally sheets of treated silicon sandwiched between conductors - they're not like microchips.
I'm not sure about batteries though.
It would also not make sense considering china is the largest builder and they also sell most of vre