By Editors of Power Engineering
Duke Energy disclosed its long-term plans for 36 of its coal ash basins.
The plans, which affect basins in North Carolina, South Carolina, Indiana and Kentucky, call for excavating 34 of them and placing safety caps on 18.
The utility noted it will make long-term closure plans for the remaining 24 basins in the future.
Even with the mix of methods, Duke predicted almost 70 percent of its coal ash will be dealt with by capping them into place.
All of the affected basins are regulated by the federal Coal Combustion Residuals rule.
Last month, Duke announced some coal ash from the H.F. Lee power plant was carried away by flood waters in the wake of Hurricane Matthew.