Ameren Illinois Company electricity rate plans
4 residential rate plans from Ameren Illinois Company. Each page breaks down peak hours, off-peak windows, and per-kWh prices. 0 are time-of-use plans.
| Plan | Type | Peak hours | Peak / off-peak |
|---|---|---|---|
| DS-1 | Flat | — | 4¢ |
| DS-1 Residential Zone 1 | Tiered | — | 14¢ |
| DS-1 Residential Zone 2 | Tiered | — | 14¢ |
| DS-1 Residential Zone 3 | Tiered | — | 11¢ |
Which Ameren Illinois Company plan is cheapest for you?
Ask the free Energy Advisor about Ameren Illinois Company rate plans, or upload a bill right here to check your real usage against every plan.
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.