Comment by convolvatron

panels themselves are highly simplified chip-like production. silicon crystals and some dopants. anyone can make extruded aluminum. anyone can build power electronics, make copper or aluminum wire.

the only interesting parts here from a supply chain perspective are power transistors. europeans have been known to design these, but idk how easy it would be to start producing them locally. they have macroscopic feature sizes though.

it would take several years of iteration to get a functioning pipeline that ran at volume, but none of this is hugely complicated. certainly not decades.

the real problem is financialization. you have to float that plant with the understanding that its not going to be competitive.