[PR Newswire] – CHARLOTTE, N.C., Feb. 20, 2015 /PRNewswire/ — Duke Energy customers in the Carolinas today established all-time peak energy usage records. The unofficial Duke Energy Carolinas and Duke Energy Progress … . . . → Read More: Company Update (NYSE:DUK): Duke Energy Carolinas’ customers set new all-time peak records for energy use Similar Articles: Market Update: Duke Energy Corp (NYSE:DUK) – Duke Energy offers holiday lighting energy calculator and winter tips to help save energy and money Market Update (NYSE:DUK): Duke Energy reinforces commitment to responsibly providing clean, reliable energy Market Update: Duke Energy Corp (NYSE:DUK) – Duke Energy helps customers take a bite out of ‘energy vampires’ with tips, new ‘Energy Slayer’ calculator