Not the same silicon. Wafer fabs make pure crystals. Photovoltaics use polysilicon. Obviously you mean purified silicon, but, remember silicon is what the Eart

Not the same silicon. Wafer fabs make pure crystals. Photovoltaics use polysilicon. Obviously you mean purified silicon, but, remember silicon is what the Earth has in abundance (yeah I know it’s energy intensive, and there exist such profession as sand prospector.)