Duke Energy Renewables racks up more than 600 megawatts of wind and solar power in 2015

http://www.pennenergy.com/articles/pennenergy/2016/01/duke-energy-renewables-racks-up-more-than-600-megawatts-of-wind-and-solar-power-in-2015.html?eid=288118515&bid=1295694