Tonight · set your area

What's happening tonight

Set your area on Home to tune this page to your local grid and weather context.

2 PM

5 PM

6 PM

7 PM

9 PM

Why tonight

Warm evening temperatures
Inland highs near 88°F push air conditioning use through dinner hours.
Lower wind generation after sunset
As solar fades, wind output is forecast to drop ~35% between 7–9 PM.
Normal weekday return-home routines
Cooking, lighting, charging, and laundry tend to stack between 6–8 PM.
Commercial load overlaps residential
Offices and retail are still cooling as homes ramp up — peaks coincide.

Weather driver: Warm inland temperatures are expected to increase AC use through early evening.

Wholesale price trend: $42.1/MWh now → $88.3/MWh during peak window.

Estimated demand ramp: 4,810 MW · renewable drop: 23%.

Stress score

78/100

Demand ramp, renewable drop, and price spread combined.

CO2 context

5.4 lb

Estimated from annual eGRID factors, not live marginal dispatch.

What helps most

Charge EV after 9:00 PM
High impact · 2.4 kWh · $1.32 est.
Level 2 EV charging shifted from the peak window into lower-price hours.
High
Run dishwasher after 8:45 PM
Medium impact · 1.0 kWh · $0.42 est.
Appliance cycle deferred until after net demand and wholesale prices ease.
Medium
Pre-cool to 72°F before 5:00 PM
Medium impact · 0.8 kWh · $0.31 est.
HVAC load shifted earlier with a small comfort-bounded setpoint change.
Medium

Evidence used tonight

CAISO peak demand forecast
CAISO OASIS · 9:55 PM
33,890 MW
Used to locate the highest-stress evening interval.
Renewable share change
CAISO OASIS · 9:55 PM
48% now -> 25% at peak
Solar fade and lower wind increase net demand pressure.
Weather driver
NOAA / National Weather Service API · 9:40 PM
Warm inland evening
Forecast language is converted into a cooling-load sensitivity tag.
Rate spread assumption
OpenEI Utility Rate Database · 7:00 AM
$0.17-$0.55/kWh
Prototype savings use a conservative time-of-use spread, not bill-grade settlement.