Decommissioning antiquated power plants is an essential step in the new generation development process. It is often the one that requires the most time to plan. There are often complications that arise with closing permits, addressing environmental issues above the surface, below grade, and in ancillary facilities such as coal ponds. It is because of the lead times that characterize any decommissioning process, that elements of work must be deemed to be on the critical path for any plant modernization upgrade. Any actions contemplated today may take years to fully implement.