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.
Our solar panel manufacturing processes utilize the best quality components available and industry-leading equipment from around the world, including Europe, the United States, Taiwan and Japan. We stand behind our promise of quality workmanship in all of our solar products.