Illinois businesses can save 20-40% on natural gas by choosing an alternative supplier through the state's deregulated market. The Illinois Commerce Commission oversees supplier choice programs, allowing commercial customers to select from dozens of licensed suppliers while their local utility continues to deliver gas safely and reliably.

Natural Gas Deregulation in Illinois

Illinois has been a leader in natural gas deregulation since the late 1990s. The state's competitive market allows commercial and industrial customers to choose their natural gas supplier while their local utility—such as Nicor Gas, Peoples Gas, or Ameren Illinois—continues to handle delivery, billing, and emergency services.

This separation of supply and delivery creates competition among suppliers, driving down prices and giving businesses more control over their energy costs. Illinois businesses of all sizes can participate, from small retail shops to large manufacturing facilities.

How Illinois Gas Choice Works

In Illinois, the natural gas supply chain is divided into two components:

  • Supply (Commodity): The actual natural gas you use, which you can purchase from any licensed supplier
  • Delivery (Distribution): The transportation of gas through pipelines to your facility, handled by your local utility

When you switch suppliers, only the supply portion of your bill changes. Your utility continues to deliver gas, read your meter, respond to emergencies, and often handle billing. The transition is seamless with no service interruption.

Illinois Utilities with Supplier Choice

The major utilities offering supplier choice programs in Illinois include:

Utility Service Territory Commercial Customers
Nicor Gas Northern Illinois (suburbs) ~200,000
Peoples Gas City of Chicago ~50,000
North Shore Gas North Shore suburbs ~10,000
Ameren Illinois Central/Southern Illinois ~80,000

Benefits for Illinois Businesses

Illinois commercial customers who actively manage their natural gas procurement typically experience significant advantages:

  • Cost Savings: Competitive supplier rates often beat default utility pricing by 20-40%
  • Budget Predictability: Fixed-rate contracts protect against winter price spikes
  • Contract Flexibility: Choose terms from 12 to 36 months based on your needs
  • No Service Changes: Same reliable delivery from your utility
  • Green Options: Access to renewable natural gas and carbon offset programs

Illinois Metro Areas We Serve

Our brokerage services are available to commercial customers throughout Illinois. Click on a metro area for localized information:

Illinois Regulatory Information

Natural gas supplier choice in Illinois is regulated by the Illinois Commerce Commission (ICC). The ICC licenses suppliers, establishes consumer protection rules, and handles complaints.

Key regulatory protections for Illinois commercial customers include:

  • Suppliers must be licensed by the ICC
  • Clear contract disclosure requirements
  • Prohibition on misleading marketing practices
  • Formal complaint resolution process

Illinois Natural Gas Articles

Explore our educational resources specific to the Illinois market:

Frequently Asked Questions: Illinois Natural Gas

Can all Illinois businesses choose their natural gas supplier?

Yes, all commercial and industrial customers in Illinois served by Nicor Gas, Peoples Gas, North Shore Gas, or Ameren Illinois can choose an alternative natural gas supplier. There are no minimum usage requirements for commercial customers.

How long does it take to switch natural gas suppliers in Illinois?

The supplier switch typically takes effect at the start of your next billing cycle, usually within 30-60 days of enrollment. There is no service interruption during the transition.

Will I receive two bills if I switch suppliers?

In most cases, no. Illinois utilities typically offer consolidated billing where your supplier charges appear on your regular utility bill. Some suppliers may offer direct billing as an option.

What happens if my supplier goes out of business?

Your gas service will not be interrupted. If a supplier exits the market, you'll automatically return to your utility's default supply service until you select a new supplier. The ICC requires suppliers to maintain financial security to protect customers.

Are there early termination fees for Illinois gas contracts?

This depends on your contract terms. Some suppliers offer contracts with no early termination fees, while others may charge a fee if you cancel before the contract ends. We help you understand all terms before signing.

How much can Illinois businesses save by switching suppliers?

Savings vary based on your current rate, usage volume, and market conditions. Illinois commercial customers typically save 20-40% compared to default utility rates. We provide a free analysis to estimate your specific savings potential.