Duke Energy’s headquarters tower in uptown Charlotte is shown in this August 2016 photo.
Duke Energy’s headquarters tower in uptown Charlotte is shown in this August 2016 photo. Jeff Siner jsiner@charlotteobserver.com
Duke Energy’s headquarters tower in uptown Charlotte is shown in this August 2016 photo. Jeff Siner jsiner@charlotteobserver.com

Duke Energy rolls out free tools to control your energy bills

July 20, 2017 01:49 PM

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