McClatchy Newspapers: Thousands of panels are soaking up the winter sunshine as Duke Energy launches its solar rooftops program under North Carolina’s new green energy law. For the first time, in a small but significant step, Duke and Raleigh-based Progress Energy will have to make a smidgen of their electricity this year from the sun. Energy from other renewable fuels, such as wind, wood wastes and chicken manure, will join the mix in two years. Renewables have to account for 12.5 percent of …