CAISO

California

54%Low strain

Grid Stress Index · demand vs. 1-yr peak

The solar-heaviest major grid. Watch the evening ramp when the sun sets and gas fills the gap.

Grid Stress Index

54%

⚾ Batting average

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

Peak Load (7d)

32.4 GW

⚾ Home runs

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

Clean Generation

62%

⚾ On-base %

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

Fossil Baseline

0.9 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, 2:00 AM ET

What's generating the electricity for this hour.

Other33%
Wind24%
Hydro21%
Nuclear12%
Natural Gas5%
Geothermal4%
Oil0%

Peak demand by year

-1% 2019–2025

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 · 23.8 GW