June 6th (1) ARC Event

June 6th ARC Event

Friday June 6th 2008 07:20 EST through 07:45 EST the Midwest ISO invoked the ARC procedure when actual load came in greater than forecasted load. Up to 42 percent of the available ARC operating reserves were utilized during this period to assist in correcting the imbalance. There were no ARS events in place when the procedure was invoked.