Duke Energy's solar power lab in Catawba County tests different types of collectors, arrays, and alignment mechanisms.
Duke Energy's solar power lab in Catawba County tests different types of collectors, arrays, and alignment mechanisms. JEFF WILLHELM jwillhelm@charlotteobserver.com
Duke Energy's solar power lab in Catawba County tests different types of collectors, arrays, and alignment mechanisms. JEFF WILLHELM jwillhelm@charlotteobserver.com