Rate comparison

How this price compares

Ranked by price against the 30 utilities reporting residential rates in Illinois, Ameren Illinois Company comes 17th of 30. The state's range runs from Tesla Inc. at 9.55¢ to Palmetto Solar, LLC at 30.00¢, so where a household sits inside Illinois depends far more on which utility serves it than on the statewide average alone.

Against the 3 other investor owned utilities reporting in Illinois, whose customer-weighted average is 15.09¢, Ameren Illinois Company is close to its own ownership class within the state (+1.1%).

State price distribution

Territory and usage

Scale and consumption

Ameren Illinois Company reported 520.5K residential customers, ranking 2nd of 30 utilities in Illinois by customers served and covering 13.3% of the state's reported residential customers.

Dividing reported residential sales by customers served gives about 10,241 kWh per customer per year - +0.0% against the Illinois median of 10,241 kWh , implying a typical annual bill near $1,562.

State peers

Every utility reporting in Illinois

All 30 utilities reporting bundled residential service in Illinois, largest first, with Ameren Illinois Company marked. The named companies either side of it are the ones a household in this state might otherwise be served by.

For generation mix and price history statewide, see electricity rates in Illinois.

Ownership class peers

Investor Owned utilities with similar residential prices

Beyond Illinois, these indexable investor owned utilities report the closest residential averages to Ameren Illinois Company in the same Form 861 release. Peer sets differ by ownership class and price, not a shared national list.

FAQ

Common questions about Ameren Illinois Company rates

How much does Ameren Illinois Company charge per kWh?

Ameren Illinois Company reported an average residential price of 15.26¢ per kWh across its bundled residential customers in the 2024 EIA Form 861 release. That is an annual average across all its residential customers, not a rate schedule, so an individual bill depends on the tariff, usage pattern and season.

Is Ameren Illinois Company expensive compared with the rest of Illinois?

Its average residential price is close to the Illinois customer-weighted average of 15.07¢ per kWh, a difference of +1.2%. The state figure is weighted by customers across the 30 utilities reporting residential service in Illinois.

What is the average electricity bill for Ameren Illinois Company customers?

Dividing reported residential sales by residential customers gives about 10,241 kWh per customer per year. At the reported average price that implies roughly $1,562 a year, or about $130 a month. This is RateWatt's arithmetic on two EIA columns, not a figure EIA publishes.

Who owns Ameren Illinois Company?

EIA classifies Ameren Illinois Company as Investor Owned, a shareholder-owned company whose retail rates are set through a state regulatory commission. Nationally, the customer-weighted average across Investor Owned utilities was 18.37¢ per kWh in the 2024 Form 861 release.

Limitations

What this page does and does not tell you

• An average across bundled residential customers for the year, revenue divided by sales, not a rate schedule.
• Form 861 presence is not evidence of availability at an address or of customer choice.

See our methodology and comparing utility costs across states .

Source: U.S. Energy Information Administration (EIA), Form 861 annual electric power industry report, 2024 release. Retrieved and formatted by RateWatt.