Electricity cost in Illinois
Short answer
Electricity in Illinois averages about 16¢/kWh. At that rate, running central AC costs about $102/month — below the U.S. average of 16.8¢.
Avg rate
16¢/kWh
| Appliance | Cost / month in Illinois |
|---|---|
| Central air conditioner | $102 |
| Electric water heater | $58 |
| Refrigerator | $6 |
| Space heater | $36 |
| Electric clothes dryer | $15 |
| EV charger (Level 2) | $105 |
Any appliance
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Frequently asked questions
What is the average electricity rate in Illinois?
About 16¢/kWh for residential customers — versus the U.S. average of 16.8¢. Your exact rate depends on your utility and plan.
How much does an electric water heater cost to run in Illinois?
About $58 per month at Illinois's 16¢/kWh rate, assuming typical use. Heat-pump water heaters cost far less.
How much does a space heater cost to run in Illinois?
Around $36 per month if run ~5 hours a day at 16¢/kWh. Space heaters are cheap to buy but expensive to run.