The D.C. Circuit rejected PJM’s “de minimis” exemption under its DFAX cost allocation and ordered FERC to explain its OK of DFAX's use in two N.J. projects.

The D.C. Circuit upheld FERC’s ruling that directed PJM to implement a new cost allocation method for transmission projects addressing stability issues.

FERC ended its refereeing in a battle over cost allocation of the $266.5M Artificial Island stability project, PJM’s first Order 1000 transmission project.

FERC backtracked on several Tariff provisions it directed PJM to include in its implementation of a new cost allocation method for transmission projects.

PJM’s stability deviation method best suits cost allocation for Artificial Island, FERC said, denying rehearing requests favoring the status quo.