The corrugated medium and linerboard board are made of kraft containerboard, a paperboard material usually over 0.01 inches (0.25 mm) thick.
The panels contain cells made in China, Taiwan and, sometimes, Germany. Grape still plans to import inexpensive Chinese-made cells, and to buy Oregon-made inverters -- which convert direct current to alternating current -- for the panels it assembles in Eugene.
Solar Panel Installation in Sticker Each panel is composed of lots of electrically interconnected solar (or PV) cells. It is all up to you if you prefer the black there are other options where they are made from aluminium, steel, copper or glass.