AEP Chairman and CEO Michael Morris has warned about the EPA plan's potential impacts on electrical system reliability, but also said those impacts would not be "devastating." Still, AEP and other utilities are lobbying Congress to try to force the EPA to slow down.
Last month, a report from the nonpartisan Congressional Research Service concluded that the EPA plans would not cause the economic "train-wreck" business leaders have warned about.
In its report, PJM says some grid impact could be felt, but that they would not be widespread.
"Although no system-wide capacity problem is apparent in PJM from the announced retirements, this does not meant that localized reliability concerns may not arise given the location of particular units and the unique locational services they provide such as congestion management of particular transmission facilities, voltage support for the transmission system, or black-start services," the PJM report said.
PJM urged the EPA to provide a "reliability safety valve" in its rules, to address those kinds of circumstances.
"The key is whether replacement resources or transmission reinforcements can be timely added given the breadth of the potential retirements and the pressure on outside vendors to supply new turbines and related resources," the PJM report said.
PJM manages the electrical grid in all or parts of West Virginia and 13 other Mid-Atlantic and Midwestern states, from Illinois to New Jersey.
Reach Ken Ward Jr. at kw...@wvgazette.com or 304-348-1702.