Duke Energy has asked North Carolina regulators to approve the expansion of a program that lets large customers contract for renewable energy.
Duke Energy says it posted a 20% increase in wind and solar power last year.
Duke Energy says it's on track to stop generating electricity with coal by 2035. That includes the Belews Creek site in Stokes County, one of its largest plants.
The town of Boone is hitting some of its climate goals eight years ahead of schedule.