Raleigh, N.C. — Duke Energy is changing the name of recently acquired Progress Energy Carolinas to Duke Energy Progress and also has created a new logo.

The Charlotte-based utility unveiled its new logo on Monday and said it will begin using the branding early next year.

Duke (NYSE: DUK) also said it was changing the names of the two Progress Energy operating groups in acquired through the recently closed merger.

Progress Energy Carolinas, which is based in Raleigh, will be called Duke Energy Progress.

Progress Energy Florida will be use the Duke Energy name.

The new logo, which includes a dash of green and a great deal of blue, is a reflection of Duke Energy's commitment to "sustainability, technology, and energy efficiency," the company said.

“The logo represents a new beginning for a unified and stronger Duke Energy," Jim Rogers, chairman and CEO of Duke, said in a statement. "It also recognizes the rich histories of both Duke Energy and Progress Energy, reflecting the image of a world-class energy company."

The new logos will be put in place starting in March 2013 in areas served by Duke Energy before the merger.

The Progress Energy units will be renamed in April.

Calling the Progress Energy Carolinas unit as Duke Energy Progress is to "minimize customer confusion," Duke Energy said. 

The Duke Energy Progress logo will include the word Progress.