Everything you need to understand your Ameren bill: rates, fuel adjustment charges, and how to verify accuracy for Illinois and Missouri customers.
14.5¢
Median Rate/kWh
12¢–17¢
Rate Range
2.4M+
Customers Served
DS-1
Standard Tariff
Enter your bill details to see if your rate appears typical for Ameren customers.
No upload required. Enter two numbers from your bill to see if it falls within typical ranges for Ameren.
Most utility bills are calculated correctly.
This quick check helps you understand if your bill stands out from typical ranges. It cannot determine accuracy without a full bill review.
The "Total Amount Due" on your bill
Usually labeled "Total kWh" or "Usage"
Disclaimer: This tool provides a rough estimate based on typical residential rates. It does not account for fixed charges, demand charges, time-of-use pricing, taxes, fees, or other bill components. Results are for informational purposes only and should not be considered financial or legal advice. We cannot determine billing accuracy without reviewing your full bill.
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St. Louis
IL / MO
Springfield (IL)
IL / MO
Peoria
IL / MO
Champaign
IL / MO
Ameren Corporation operates two regulated utility subsidiaries: Ameren Illinois and Ameren Missouri. Together they serve approximately 2.4 million electric customers and 900,000 natural gas customers across Illinois and Missouri.
Ameren Illinois operates in a deregulated market where customers can choose their electricity supplier, while Ameren Missouri operates as a traditional regulated utility. Both are regulated by their respective state public utility commissions.
Ameren bills include a Fuel Adjustment Clause (FAC) that adjusts based on actual fuel costs. Illinois customers may see separate delivery and supply charges if they've chosen an alternative supplier. Missouri customers receive bundled rates.
Common questions about this utility — answered clearly with current data from published tariff schedules and regulatory filings.