Illinois Electricity Rates
Residential rate
20.47¢/kWh
+9% vs US average
Rank (most expensive)
#16
of 51 (incl. DC)
Est. monthly bill
$180
at the US-typical 880 kWh/month
What that rate means in practice
| Appliance (typical use) | Cost per month in Illinois |
|---|---|
| Space heater | $56.01 |
| Central air conditioner (3 ton) | $174.24 |
| Window AC unit | $44.80 |
| Portable AC unit | $54.76 |
| Electric water heater (tank) | $74.67 |
| Heat pump water heater | $18.67 |
| Electric clothes dryer | $18.67 |
| Washing machine | $1.56 |
| Dishwasher | $8.09 |
| Refrigerator (modern) | $7.47 |
| Chest freezer | $8.71 |
| Electric oven | $15.56 |
Typical wattages and durations, adjust them in the calculator.
Run your own numbers for Illinois
- Heat pump vs gas furnace, gas here currently costs about $1.38/therm
- EV home charging cost
- Solar payback under 2026 rules
- Illinois rebates that are still available
Rate source: EIA Electric Power Monthly, Table 5.6.A (residential average). Bills vary by utility and usage.