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Constellation Energy in Illinois

Compare Electricity and Natural Gas Plans in Illinois and Save

In Illinois, utility companies used to be the only option for energy users — the utility controlled delivery, pricing, and maintenance. Today, you can choose the best Illinois energy supplier for you. That means it's easy to compare electricity, natural gas, and renewable electric plans near you and select the best rate and plan for your needs.

Featured Constellation Rates in Illinois

Utility
Most Popular

30 Month Smart Home Bundle Plan

Rate per kWh:
5.79¢
Plan Length:
30 mo.
Special Offer:
Smart Home System
Plan Details
or Call 888-897-6804

30 Month Smart Home Bundle Plan

Rate per kWh

5.79¢

Plan Length

30 mo.

Special Offer

Smart Home System

Constellation has a special offer for all customers signing up for a 30-month electricity plan! Sign up today and you'll receive a Connect Smart Home Starter Package ($289 value). Get the foundation you need to automate your home and reduce your energy bill. This starter package includes our most popular smart devices, plus a central hub that acts as the brains of the operation. Schedule lights to turn off at night, secure your entryways and monitor the energy efficiency of your appliances, all from the Connect App on your smartphone.
Connect Smart Home Starter Package Includes:
  • 1 Constellation Connect Hub
  • 1 Motion Sensor
  • 1 Smart Light Bulb
  • 1 Amazon Echo Dot
  • 2 Window & Door Sensors
  • 1 Smart Plug

You will receive your discount code in an email within 30 days of your sign up.

Your selected plan will include:
  • Early Cancellation Fee: None
or Call 888-897-6804

Constellation electricity Rates in Illinois

Utility

Ameren electricity Plans

Constellation rates available for Ameren electricity customers.

Plan NameLengthRateSpecial Offer
30 Month Smart Home Bundle Plan30 mo.5.79¢Smart Home SystemGet Offer

Constellation natural gas Rates in Illinois

Utility

Nicor Gas natural gas Plans

Constellation rates available for Nicor Gas natural gas customers.

Sorry, we do not have plans for this utility. Please try another.

Enter Your Zip Code to Confirm Plan Availability

Bundle electricity and natural gas with Constellation and receive a free $75 gift card. Call: 888-897-6804

Free Gift Card

Why Choose Constellation as Your Illinois Energy Supplier?

  • Hassle-Free Switching
    Our process is virtually hassle-free and there will be no interruptions to your service.
  • Quick and Easy Signup
    Our signup process is simple and can be completed in minutes.
  • Fixed-Rate Plans
    We offer great fixed-rate plans with no hidden fees designed to fit your life and budget.
  • Exceptional Customer Service
    Our customer service team will respond promptly and personally and help you with any questions.
Constellation provides excellent Home Services

Constellation Smart Home Security in Illinois

Constellation Connect is an innovative and easy to use home automation and security system. Connect makes it simple to automate your home and make it more energy efficient. It works seamlessly with hundreds of smart home devices like Honeywell thermostats, Amazon Echo, cameras, and more. It can all be controlled through the convenient Constellation Connect App.

Learn About Smart Home Security

Switching Illinois Energy Providers

Utility companies used to be the only option for energy users in Illinois. Today, with energy choice, you can choose the Illinois energy supplier that meets your criteria for rate and plan terms.

What Does Energy Choice Mean?

Retail energy companies in Illinois compete for your business, which can result in reduced energy costs, better customer service, more innovative energy solutions, and energy plans that fit your budget. For example, Constellation offers natural gas and electricity plans to Illinois residents with:

  • no sign-up fees
  • exceptional customer service
  • a variety of fixed-rate electric and natural gas plans

Understanding Illinois Energy Suppliers vs. Utility Companies

Utility companies deliver natural gas and electricity to your home. They are responsible for owning and maintaining the systems (pipelines and power lines) used to deliver energy to your home.

What is an Energy Supplier?

Energy suppliers let you pick and set the rate you pay for energy. The right to choose among Illinois natural gas suppliers and electricity suppliers gives you more control over your budget by providing you with more home energy options (for example, choosing a renewable electric plan). Illinois energy suppliers can also offer fixed-rate plans, so you know what energy rate you’ll be paying every month.

As your Illinois energy supplier, we don’t deliver electricity and natural gas to your home (that’s the utility), but we do provide the commodity, and set your rate and contract term. Illinois natural gas suppliers and electricity suppliers can also provide you with customized plans, competitive rates, and exceptional customer service!

Promoting Sustainability Through Sports in Illinois

As the preferred energy choice of the Chicago Blackhawks and Chicago Bulls, Constellation has been the official energy provider of the Chicago United Center since 2011. We believe in helping home-team fans save energy each season by hosting Go Green Games, and supporting Illinois energy users by donating Green-e Energy Certified Renewable Energy Certificates (RECs) at every Go Green Game. Constellation is proud to power the United Center and the Chicago Bulls and Chicago Blackhawks practice facilities.

Constellation Energy

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These materials are provided by Constellation NewEnergy, Inc., Constellation NewEnergy-Gas Division, LLC, Constellation Energy Power Choice, LLC, Constellation Energy Gas Choice, LLC, or BGE Home Products & Services, LLC (d/b/a BGE Home, Constellation Electric and Constellation Home in Maryland and d/b/a Constellation Home in Pennsylvania and Texas), each a subsidiary of Exelon Corporation. Exelon Corporation also owns Atlantic City Electric (ACE), Baltimore Gas and Electric Company (BGE), ComEd, Delmarva Power, PECO and Pepco energy companies. BGE Home Products & Services, LLC, is not the same company as BGE, the regulated utility. The prices of Constellation are not regulated by any state Public Utility Commission. You do not have to buy Constellation electricity, natural gas or any other products to receive the same quality regulated service from your local utility. Brand names and product names are trademarks or service marks of their respective holders. All rights reserved. Errors and omissions excepted.

Electricity or Gas Supplier License/Order #s: CA 1359, CTA0006, CTA0032; CT 01-06, 06-07-11, 07-03-08; DE 00-162; DC GA2012-12, GA06-2, EA01-5; GA GM-33; IL 02-0489, 03-0320, 16-0205, 11-0394; IA G-0010; ME 2000-989; MD IR-6345, IR-655, IR-311, IR-500, IR-3644, IR-228; MA GS-053, GS-030, CS-015, CS-045; MI U-14066, U-14867, U-13660; NE NG-0043; NH DM 17-024; NJ GSL-0074, GSL-0101, ESL-0016, ESL-0066; OH 02-021G, 09-153G, 00-003E; OR ES4 (12-162); PA A-2016-2542899, A-125095, A-110036, A-2016-2547424; RI 2379(Z1), D-96-6(E); TX 10014; VA G-26, G-34, G-36, G-51, E-11A

Power Target, LLC ("Power Target") developed, updates and services this website. Power Target is not an affiliate, representative or agent of Constellation. Power Target will receive a payment from Constellation in connection with its efforts to facilitate your enrollment. Any questions regarding such payment should be directed to Power Target.

* The $75 gift card amount applies to new customers that successfully enroll in a Constellation electric and natural gas bundle only ($50 gift card for a successful electric enrollment and a $25 gift card for a successful natural gas enrollment)

Only new customer successful enrollments with Constellation qualify. Cards are issued by Virtual Rewards Center. Valid email address required for receipt of gift card. Gift cards will not have cash access. For any questions about your gift card, call our customer care team at 1-888-897-6804.