Envision Charlotte will cut energy use in Uptown Charlotte by 20 percent and avoid approximately 220,000 metric tons of greenhouse gases by 2016. Unlike other eco-cities or smart-grid (see smartgridnews.com) projects, Envision Charlotte provides behavioral feedback loops that show people how their behavior affects energy-usage and how to modify their actions accordingly. Feedback that is gathered is helping Duke Energy and other stakeholders develop strategies to promote energy efficient behaviors to building occupants.