⚡ US Energy Price Monitorby KadoaUpdated weeklyStar on GitHub

Illinois

Ameren Illinois electricity rates

What homes pay Ameren Illinois for electricity, from EIA.

Investor-owned utility, 642,913 homes in Illinois. EIA lists it as Ameren Illinois Company.

Headlines

Average price
17.3¢ a kWh
Up 7.3% on a year ago
Average bill
$151 a month
Up 8.9% on a year ago
Average use
875 kWh
A month. Illinois 700 kWh
Price rank in Illinois
2 of 3
1 is the most expensive

Over the 12 months to July 2026, Ameren Illinois homes paid 17.3¢ a kWh, against 18.8¢ across Illinois.

Ameren Illinois vs Illinois

Ameren IllinoisIllinois
Average price, 12 months to July 202617.3¢18.8¢
Price in July 202619.5¢19.2¢
Average monthly bill, 12 months$151$132
Bill in July 2026$232$193
Average monthly use875 kWh700 kWh
Price change, past year+7.3%+11%
Price change since 2019+83%+44%

Electricity price

Average residential price a kilowatt-hour, by month.

Up to and including July 2026

Source: EIA-861M monthly utility survey. Revenue over kilowatt-hours sold, including fixed charges.

Average monthly bill

What an average home pays a month.

Up to and including July 2026

Source: EIA-861M monthly utility survey.