How much does electricity cost in Illinois?

Illinois electricity costs depend on the utility territory, supply option, electricity usage, delivery charges and plan terms. Competitive supplier rates and municipal aggregation prices can vary by location and offer.

Can I choose my electricity supplier in Illinois?

Eligible Illinois electricity customers can generally choose competitive retail electric supply products. The customer's local utility continues to deliver electricity and maintain the distribution system.

What are municipal aggregation programs in Illinois?

Municipal aggregation programs allow participating Illinois communities to arrange electricity supply for eligible residents and businesses. The local electric utility continues to provide delivery service.

Home / Illinois Electricity

Illinois Electricity Providers

Q: Who are the electricity providers in Illinois?

Illinois electricity customers receive delivery service from regulated electric utilities such as ComEd and Ameren Illinois. Electricity supply may come through utility service, municipal aggregation programs or a competitive retail electric supplier.

Q: Is Illinois electricity deregulated?

Illinois allows eligible electricity customers to choose competitive retail electric supply products. The local electric utility continues to provide delivery service regardless of the customer's electricity supplier.

Q: Who delivers electricity in Illinois?

Electricity delivery in Illinois is handled by regulated electric utilities, primarily ComEd and Ameren Illinois, depending on the customer's location.

Q: Can I get renewable electricity in Illinois?

Illinois customers may have access to renewable electricity through competitive retail electric suppliers, municipal aggregation programs and renewable energy programs. Renewable content and pricing vary by product.

Q: How do I compare electricity rates in Illinois?

Compare the electricity supply rate, utility territory, contract period, renewable content, cancellation terms, monthly fees and other applicable charges. Delivery charges are separate from electricity supply.

Compare Illinois electricity providers, utility supply options, municipal aggregation programs, competitive retail electric suppliers and renewable electricity plans by ZIP code.

ComEd Ameren Illinois Municipal aggregation Competitive suppliers Renewable electricity ZIP-code comparison

Explore Illinois Electricity Rates →

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Find plans by ZIP code

Enter your Illinois ZIP code to find electricity supply options and provider information for your area.

Electricity supply and delivery are separate portions of an Illinois electric bill. Always verify current supplier rates, terms, renewable content and applicable fees before enrolling.

2 Major electric utility groups

3 Main electricity supply pathways

ZIP Rates can vary by service territory

100% Renewable options may be available

Illinois electricity guide

Start with the electricity option you need

Illinois electricity customers can encounter several types of supply arrangements. Your local utility handles delivery, while supply may come through utility service, municipal aggregation or a competitive retail electric supplier.

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Utility Supply

The electricity supply associated with your local utility when you do not select another eligible supply option.

Explore utilities →

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Municipal aggregation

Participating Illinois communities may arrange electricity supply through municipal aggregation programs.

See aggregation programs →

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Competitive suppliers

Eligible customers may shop for competitive retail electricity supply products with different rates and contract terms.

Understand supplier plans →

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Renewable electricity

Renewable electricity products and community programs may offer different levels of renewable-energy content.

Learn about renewable options →

Illinois electric utilities

Which utility serves your Illinois address?

Your utility territory determines who delivers electricity to your address. Supply choices can then depend on your utility, community and eligibility.

Northern Illinois

ComEd

ComEd provides electric delivery service throughout much of northern Illinois, including the Chicago metropolitan area. Customers may have access to utility supply, municipal aggregation and competitive supply.

View ComEd supply information →

Central & Southern Illinois

Ameren Illinois

Ameren Illinois provides electricity delivery service across many communities in central and southern Illinois. Supply options and available programs depend on location.

View Ameren Illinois information →

How the market works

Illinois electricity has two main parts

Understanding the difference between supply and delivery makes electricity-rate comparisons much easier.

Electricity supply

Supply is the electricity you consume. Depending on your location and eligibility, it can come through utility service, municipal aggregation or a competitive retail electric supplier.

Electricity delivery

The local regulated electric utility delivers electricity, maintains the distribution system, handles outages and applies delivery charges.

Your electricity bill

Your total bill can include supply, delivery, transmission, distribution and other applicable charges. A supply-rate comparison is therefore not a complete bill comparison.

Illinois electricity rates

Compare utility and supply options

Illinois electricity rates vary by utility territory, supply option, supplier, contract, community and customer eligibility. Use this section as a directory rather than assuming one statewide electricity rate.

● Rate information: September 2026

Utility / Provider	Supply option	Rate	Rate period	Type
ComEd Illinois electric utility	Utility supply	Varies /kWh	Rate / market dependent	Utility	View
Ameren Illinois Illinois electric utility	Utility supply	Varies /kWh	Rate / market dependent	Utility	View
Municipal Aggregation Participating Illinois communities	Community-selected supply	Varies /kWh	Program specific	Community	Cities
Competitive Retail Suppliers Illinois retail electricity market	ZIP-code specific offers	Varies /kWh	Offer specific	Competitive	Shop
Renewable Electricity Renewable supply products	Renewable supply	Varies /kWh	Offer specific	Renewable	View

Supply rates are not the same as total electric-bill costs. Always verify the current utility rate, supplier offer, contract period, renewable content, cancellation terms and applicable fees before enrolling.

Illinois electricity plans

Understand the main electricity supply options

The right plan depends on your utility territory, available offers, pricing structure, contract terms and renewable-energy preferences.

Utility Supply

Electricity supply through your utility

Varies by utility / market

Utility Supply source

Varies Pricing

Default Supply pathway

Available through the customer's local electric utility
No separate competitive supplier enrollment required
Pricing depends on utility service and applicable rates
Utility continues electricity delivery

View Utilities Learn More

Municipal Aggregation

Community electricity programs

Varies by community

Local Program

Program Pricing

Optional Terms

Available in participating Illinois communities
Supply arranged through a community program
Renewable content can vary by program
Local utility continues electricity delivery

Find a Program Learn More

Competitive Supplier

Alternative retail electricity supply

Varies by offer

ZIP Availability

Fixed / Variable Offer dependent

Contract Varies

Offers can vary by address and eligibility
Different contract periods may be available
Renewable content varies by product
Review cancellation and renewal terms carefully

Check ZIP Code

Renewable Electricity

Clean-energy supply options

Varies by product

Renewable Content

Varies Contract

Program Dependent

Renewable content varies by electricity product
May be offered by suppliers or community programs
Review renewable-energy disclosures
Compare price and contract terms separately

Renewable Guide

Illinois electricity guide

How electricity shopping works in Illinois

Illinois separates electricity supply from electricity delivery. This means eligible customers may be able to choose their electricity supplier while the same local utility continues to deliver power to the home or business.

Check My ZIP Code

Step 1

Identify your utility

Your address is located within a particular electric utility territory. That utility handles electricity delivery.

Step 2

Review the supply rate

Compare the electricity supply price expressed in cents per kilowatt-hour.

Step 3

Check the contract

Review the rate structure, contract period, renewal provisions, cancellation terms and applicable fees.

Step 4

Review renewable content

If renewable electricity matters to you, compare renewable content and disclosures for each supply option.

Step 5

Compare the complete bill

Supply is only one component of the electric bill. Delivery and other regulated charges remain important.

Illinois electricity by city

Find electricity providers and rates by Illinois city

Select a city to explore local electricity providers, utility information, supply rates, municipal aggregation programs and ZIP-code electricity pages.

Before switching

Six things to check before choosing an Illinois plan

1. Supply rate

Compare the advertised cents-per-kWh electricity supply price.

2. Utility territory

Confirm which Illinois electric utility serves your address.

3. Contract length

Check how long the quoted rate remains in effect.

4. Cancellation fees

Review any early termination or cancellation charges.

5. Renewable content

Check the percentage and type of renewable energy associated with the plan.

6. Total bill

Remember that supply is only one part of your Illinois electric bill.

Find Illinois electricity options

Start with your ZIP code to identify local utility and electricity supply options.

Compare Electricity Plans →

Illinois electricity FAQ

Frequently asked questions

Learn how electricity supply, utilities, municipal aggregation and competitive suppliers work in Illinois.

Who are the electricity providers in Illinois?

Illinois electricity customers receive electricity delivery from regulated utilities such as ComEd and Ameren Illinois. Electricity supply may come through utility service, municipal aggregation programs or competitive retail electric suppliers.

Is Illinois electricity deregulated?

Illinois allows eligible customers to choose competitive electricity supply products. The local electric utility continues to provide delivery service regardless of the electricity supplier selected.

What is utility electricity supply?

Utility electricity supply is the supply service associated with the customer's local electric utility when the customer does not choose another eligible supply option.

Who delivers electricity in Illinois?

Electricity delivery is handled by the regulated electric utility serving the customer's address. Depending on location, that may include ComEd or Ameren Illinois.

Can I choose my electricity supplier?

Eligible Illinois customers can generally choose competitive retail electricity supply products. Your local utility continues to deliver the electricity through its distribution system.

What is municipal aggregation?

Municipal aggregation allows a participating community to arrange electricity supply on behalf of eligible residents and businesses. The local utility remains responsible for electricity delivery.

Are Illinois electricity rates fixed?

It depends on the supply option. Utility supply pricing and competitive supplier contracts can have different pricing structures. Municipal aggregation programs also have program-specific terms.

Can I get renewable electricity in Illinois?

Renewable electricity options may be available through competitive suppliers, municipal aggregation programs and other renewable-energy programs. Renewable content and pricing depend on the specific product.

How do I compare electricity rates in Illinois?

Start by identifying your utility and comparing available supply rates. Then review the contract period, renewable content, cancellation terms, renewal provisions and applicable fees. Remember that delivery charges are separate from supply.

Does switching electricity suppliers change my utility?

Generally, choosing a different electricity supplier changes the supply portion of your electricity service, not the local delivery utility. The utility continues to maintain the distribution system and deliver electricity.

Electricity pricing disclosure: Illinois electricity pricing consists of separate supply and delivery components. Utility supply rates, municipal aggregation rates and competitive supplier offers can change by utility territory, community, ZIP code, contract, eligibility and date. Information on this page is intended as a general guide. Always verify current rates and supplier terms before enrolling.