Uptown Charlotte buildings reduce energy use

Uptown Charlotte buildings have reduced their energy use by 8.4 percent since 2011, the sustainability initiative Envision Charlotte and Duke Energy said Wednesday. The campaign aims to curb energy consumption 20 percent by 2016. Owners of 61 commercial buildings are involved, saving an estimated $10 million so far. Changes in building operations and in behavior by building occupants account for the dropping energy use, officials say. Bruce Henderson