“MISO forecasts its peak total internal demand at 127 GW during the 2026 summer season and expects that summer demand will grow to 143.7 GW by 2035; the largest contributor to this accelerated demand growth is data center additions, with 18 GW of data center loads projected by 2035.”
FERC-certified Electric Reliability Organization; 2025 Long-Term Reliability Assessment
Said Jan 29, 2026Deadline Dec 31, 2035NERC 2025 Long-Term Reliability Assessment, released January 29, 2026
NERC classifies MISO as normal risk in 2026, elevated in 2027 and high risk from 2028 onward on the back of this demand trajectory; the 143.7 GW figure resolves against MISO's actual 2035 summer peak internal demand.