Electricity rates for Ameren Illinois customers
Ameren Illinois delivers your power either way. The supply part of your bill can come from Ameren Illinois’s default service or from a retail supplier. Offers below are supply rates only.
Oct 1, 2026 – May 31, 2027 · Plug In Illinois - Price to Compare page
- Best fixed offer
- —
- Vs default, 1000 kWh/mo
- —
- Offers posted
- 0
- Average all-in price
- 15.26¢
Ameren Illinois prices supply separately in each of these areas. Your bill names yours.
Your bill shows your monthly kWh. Many homes use 600–1,000.
No retail offers collected for Ameren Illinois yet
The default supply rate is 8.26¢ per kWh. Set an alert and we’ll email you when a supplier posts a lower fixed rate.
Ameren Illinois default rate over time
Supply portion only.
Show as table
| Date | Default rate |
|---|---|
| Jun 1 | 11.32¢ |
| Jul 1 | 11.32¢ |
| Aug 1 | 11.32¢ |
| Sep 1 | 11.32¢ |
| Oct 1 | 8.26¢ |
Suppliers licensed in Illinois without a posted offer here
Approved to sell to homes in Illinois. Contact them for current offers.
- AEP Energy
- AP Gas & Electric (IL)
- Alpha Gas and Electric
- Ambit Energy Holdings
- Ambit Northeast
- American Power & Gas
- American Power & Gas of IL
- American PowerNet Management
- Aspirity Energy
- Atlantic Energy
- Atlantic Energy MD
- Base Power Company
- Champion Energy
- CleanChoice Energy
- Clearview Electric
- Clearview Energy
- Constellation Energy
- Constellation NewEnergy
- Direct Energy
- Direct Energy Services
- Dynegy
- Dynegy Energy Services
- ENGIE Power & Gas
- EcoPlus Power
- Eligo Energy
- Energy Harbor
- Energy Plus
- Energy Plus Holdings
- Energy Rewards
- Energy Services Providers
- Energywell
- Fanfare Energy
- Freepoint Energy Solutions
- Frontier Utilities
- Frontier Utilities Northeast
- Great American Power
- Green Mountain Energy Company
- Greenlight Energy
- Hero Power
- Homefield Energy
- Horizon Power and Light
- Hudson Energy Services
- IDT Energy
- IGS Energy
- Illinois Gas & Electric
- Independence Energy
- Indra Energy
- Inspire Energy Holdings
- Interstate Gas Supply
- Josco Energy IL
- Just Energy
- Just Energy Solutions
- MC Squared Energy Services
- MP2 Energy NE
- MPower Energy NJ
- Major Energy
- Major Energy Electric Services
- MidAmerican Energy Services
- NRG Home
- National Gas & Electric
Default rate through May 31. Retail offers come from Illinois’s official shopping site and count as current for six weeks. How we collect rates.