NorthWestern Energy

Montana

47%Low strain

Grid Stress Index · demand vs. 1-yr peak

Montana's main utility — hydro, wind, and coal across the northern Rockies.

Grid Stress Index

47%

⚾ Batting average

Current demand as a share of the past year's peak. 95%+ means the grid is near its limit.

Peak Load (7d)

1.5 GW

⚾ Home runs

The biggest single-hour demand spike over the last week.

Clean Generation

56%

⚾ On-base %

Share of generation from wind, solar, hydro, nuclear & geothermal right now.

Fossil Baseline

0.7 GW

⚾ Small ball

Power coming from coal, gas & oil — the grid's heavy lifting when renewables dip.

Demand vs. forecast

last 7 days · GW

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

Fuel mix

Jul 4, 1:00 AM ET

What's generating the electricity for this hour.

Hydro36%
Coal31%
Wind21%
Natural Gas12%

Demand trend

-10% avg demand · 2019–2026

Monthly average demand (amber) with the monthly baseload — the lowest hour of each month (cyan). A rising floor is the signature of always-on data-center load.

Latest demand reading: Jul 4, 2:00 PM ET · 1.3 GW