GridStrain
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MISO

Midwest

74%Moderate

Grid Stress Index · demand vs. 1-yr peak

Fifteen states across the nation's industrial midsection, with heavy wind and a large coal + gas baseload.

Grid Stress Index
74%
Batting average
Current demand as a share of the past year's peak. 95%+ means the grid is near its limit.
Peak Load (7d)
96.5 GW
Home runs
The biggest single-hour demand spike over the last week.
Clean Generation
35%
On-base %
Share of generation from wind, solar, hydro, nuclear & geothermal right now.
Fossil Baseline
51.5 GW
Small ball
Power coming from coal, gas & oil — the grid's heavy lifting when renewables dip.

Demand vs. forecast

last 7 days

Amber = actual demand · blue dashed = day-ahead forecast.

Fuel mix

Jun 8, 12:00 AM ET

What's generating the electricity for this hour.

  • Natural Gas41%
  • Coal24%
  • Wind19%
  • Nuclear14%
  • Hydro2%
  • Other1%
  • Solar0%

Peak demand by year

+2% 20192025

The highest single hour of demand each year. A rising peak is the clearest sign of load growth straining the grid — the latest bar is the year so far.

Latest demand reading: Jun 8, 11:00 AM ET · 87.9 GW