MISO Skirts Max Gen Emergency in July Heat
Most Concerns Centered on RTO’s South Region, Although Midwest also Faced Alert
By the evening peak on July 29, it was clear MISO wouldn't have to escalate a maximum generation warning | MISO
Jul 29, 2025
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MISO issued a slew of warning notices and operating instructions — especially in the South region — to help deal with oppressive July heat, forced generation outages and strained transmission.



