Mark Pringle, vice president of Siemens Charlotte Energy Hub, at the manufacturer’s 450,000 square foot gas turbine production plant in a December 2011 file photo.
Mark Pringle, vice president of Siemens Charlotte Energy Hub, at the manufacturer’s 450,000 square foot gas turbine production plant in a December 2011 file photo. Todd Sumlin tsumlin@charlotteobserver.com
Mark Pringle, vice president of Siemens Charlotte Energy Hub, at the manufacturer’s 450,000 square foot gas turbine production plant in a December 2011 file photo. Todd Sumlin tsumlin@charlotteobserver.com