Natural gas needs its own Illinois check
Gas supply choice and transportation depend on the local distribution utility and program. Record whether the account is with Nicor Gas, Peoples Gas, North Shore Gas or another utility, and compare commodity pricing in consistent billed units.
What matters in this market
ComEd and Ameren Illinois are distinct delivery territories. Do not blend their tariff charges or default supply components into one Illinois benchmark. Contract comparison should show which costs are included and how demand, transmission and capacity items are treated for the actual account.
The relevant wholesale-system context is PJM for ComEd; MISO for Ameren Illinois. A wholesale market label does not itself grant retail switching rights. Start with the state program and the account’s delivery utility, then read the proposed retail agreement.
Identify the utility and account boundary
Use the utility name printed on the bill rather than the supplier’s brand or a nearby city’s common provider. A utility can cover only part of a region, and a multi-location business can have different service arrangements across its meters.
The following are market-context examples, not a guarantee of coverage at a specific address. The utility directory and the account’s current invoice are the next checks.
- ComEd
- Ameren Illinois
- Nicor Gas
- Peoples Gas
- North Shore Gas
Build an equivalent offer comparison
For a Illinois business, eligibility comes before price ranking. Once the account pathway is confirmed, use the same meters, dates and annual consumption in each request. Read the unit price alongside recurring charges, exclusions, volume terms and contract obligations.
Hypothetical: 100,000 kWh at $0.10/kWh represents $10,000 in energy cost. A $0.095/kWh alternative with $600 in annual fees represents $10,100 before comparable excluded components. A lower energy rate can therefore produce a higher modeled cost.
| Decision | Evidence to use |
|---|---|
| Retail eligibility | Illinois Commerce Commission: electric choice basics |
| Delivery and rate class | The service utility’s current tariff and invoice |
| Supply price and exclusions | Dated written supplier offer and agreement |
| Future load | Operating calendar, equipment changes and meter plans |
Prepare the review without oversharing
Record the state, utility, commodity, location count and renewal timing. Keep detailed account identifiers and documents out of the initial inquiry. After connecting, agree how to share the information needed for a meaningful review.
An inquiry does not change the utility, enroll supply or authorize a contract. Supplier-paid broker compensation applies when an account enrolls through our service; request its treatment in the offer.
Questions & answers
Can every Illinois business choose a supplier?
Competitive electric supply is available in the main investor-owned utility territories, including ComEd and Ameren Illinois. Verify the account class and applicable eligibility before enrollment. A municipal electric account should be reviewed under that provider’s own arrangement rather than assumed to operate like a ComEd account.
Will the delivery utility change if supply changes?
A supply change and utility delivery are separate roles. Confirm the account’s applicable program and tariff; do not assume a supplier quote changes the delivery company or its regulated charges.
Sources & scope
Primary references reviewed October 15, 2026. These sources support the stated concepts; actual tariffs, program rules and signed agreements govern the account. Decision examples and operational worksheets are original educational analysis.
- Illinois Commerce Commission: electric choice basics
State-level eligibility context. Verify the service utility, account class and current program rules. - EIA: electricity prices and factors affecting prices
Price components and variation; not an account-specific quote. - EIA: natural gas customer choice programs
Gas choice and utility delivery; local eligibility must be confirmed.