N.C. environmental regulators have rejected Duke Energy Corp. (NYSE: DUK) proposals to close ash basins at six coal plants by capping them in place and ordered its utilities to excavate the ash and rebury it in lined landfills.
The ruling Monday by the N.C. Department of Environmental Quality is likely to significantly increase Duke’s costs for closing its North Carolina coal ponds, and could push the final amount, which is likely to be borne by customers under recent regulatory rulings, to more…
