wattya!A LITTLE ENERGY KNOW-HOW
Illinois electricity rates & monthly costs
Explore Illinois residential electricity prices, monthly history and example energy costs using EIA state averages.
Source period: . Collection and publication times may differ.
Residential state average · 2026-0819.32¢ / kWh
EIA average revenue per unit sold. This is not a currently offered electricity plan.
0.1¢Change from previous month
1.29¢Change from same month last year
What would that mean for a home?
| Monthly use | Cost at this average |
|---|---|
| 500 kWh | $96.6 |
| 900 kWh | $173.88 |
| 1500 kWh | $289.8 |
These are usage scenarios using an aggregate average, not an itemized tariff calculation. Do not add a utility’s fixed charges to these figures and assume the result is its bill.
Calculate with this rate ↗Illinois price history
| Report month | Residential average |
|---|---|
| 2026-08 | 19.32¢/kWh |
| 2026-07 | 19.22¢/kWh |
| 2026-06 | 19.89¢/kWh |
| 2026-05 | 23.85¢/kWh |
| 2026-04 | 20.47¢/kWh |
| 2026-03 | 18.85¢/kWh |
| 2026-02 | 17.83¢/kWh |
| 2026-01 | 16.36¢/kWh |
| 2025-12 | 17.05¢/kWh |
| 2025-11 | 18.28¢/kWh |
| 2025-10 | 18.7¢/kWh |
| 2025-09 | 19.01¢/kWh |
| 2025-08 | 18.03¢/kWh |
Before comparing a plan
Match your service address, customer class and usage to the utility’s actual terms. A state average mixes many customers and tariffs. A change in the average does not prove that a particular utility changed its rate.
Explore a related grid ↗ · Look up utility records by ZIP ↗ · Wholesale vs retail prices ↗