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.
Below we look at some of the top solar energy companies today. Solar panels on Chinaâs Birdâs Nest Olympic stadium were supplied by one of the worldâs top solar companies, Suntech. Suntech was one of Chinaâs first solar energy companies and is now the worldâs largest silicon solar panel producer. The company has grown quickly since its establishment in September 2001 and now has a presence in 80 countries worldwide and a dynamic research and development team spread across five countries.