MISO won FERC permission to expand its mitigation measures on narrowly constrained areas to address intense but temporary congestion.

MISO will file a response to FERC’s recent deficiency letter on the RTO’s new constrained area category after an internal review.

MISO proposed creating a new category of narrowly constrained areas (NCAs) identified by momentary congestion and associated market power.

MISO’s IMM is recommending the RTO expand mitigation measures on constrained areas by creating a new definition aimed at periods of temporary congestion.