Solar can take care of the energy easily. For the materials, I would expect a prebuilt facility to autonomously mine things to provide raw materials. Easier sai

Solar can take care of the energy easily. For the materials, I would expect a prebuilt facility to autonomously mine things to provide raw materials. Easier said than done of course. Without true AI, it wouldn't be possible to make them 100% autonomous because eventually they would run out of materials.