Rates and Tariffs
Electricity charges fluctuate between summer and winter pricing. Learn more about why the change occurs.
Do you know how your electric service connects to your home or business, or which portions are your responsibility to maintain? Start here.
Review the current rates and tariffs, plus find impending rate changes.
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Electric Tariffs
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Gas Tariffs
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Other Resources
- Purchased Gas Adjustment Summaries
- Supplemental Information
- Pending Tariff Changes
Illinois Customers
- Illinois Electric Choice - The Illinois Electric Service Customer Choice and Rate Relief Law of 1997 restructured the state's electric service industry. As a result, customers have choices about who supplies the generation portion of their electric power.
- Illinois Optional Time-of-Use-Rates
- Illinois Functional Separation
- Illinois Part 452.70 Compliance