Shop for natural gas, renewable energy, and electricity rates in Illinois
Compare Natural Gas & Electric Rates in Illinois by Zip Code
Enter your Illinois zip code, and a promo code if applicable, then click "get started." You'll see Constellation's available natural gas and electricity plans near you. Illinois residents can compare energy plans with no sign-up fees.
Constellation offers these Illinois energy solutions:
Switching Illinois Energy Suppliers
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 meaning it's easy to compare electricity, natural gas, and renewable electric plans near you and select the best rate and plan for your needs.
Understanding Energy Suppliers in Illinois vs. Utility Companies
Utilities companies deliver natural gas to your home. In Illinois, this means your utility — which many customers refer to as light and power companies — owns the power lines and gas pipelines which send energy to you to power your home.
What is an energy supplier?
Energy suppliers set the rate you pay for energy and determine where your energy comes from. The right to choose among Illinois energy suppliers gives you more control over your budget by expanding your home energy options. Energy suppliers in Illinois can also offer fixed-rate plans, so you know what energy rate you’ll be paying every month, ahead of time.
Constellation is an Illinois energy supplier, which means that we aren't the utility company that delivers natural gas to your home, but the one who sets your rate and contract term. As your energy supplier in Illinois, we provide you with customized electric plans, competitive Illinois natural gas rates, and exceptional customer service!