EIA-derived commercial rate data · 06/2026
Illinois commercial electricity rates
The average all-in rate and monthly usage for the average Illinois commercial account, how retail supplier choice works there, who delivers the power and who regulates it. Market context with its source and date, never a quote.
EIA averages, data through 06/2026. All-in means supply and delivery together; supplier contract quotes cover the supply portion only, so the two are not directly comparable.
Illinois commercial electricity at a glance
The average Illinois commercial account paid 14.53¢ per kWh all-in, supply and delivery together, versus 14.19¢ nationally (EIA, 06/2026), and used about 5,964 kWh a month (EIA, through 2026). That average mixes corner stores with hospitals, so it is market context rather than a quote for any one business, and supplier contract quotes cover the supply portion only, so the two figures are not directly comparable. Among the 14 states with retail electricity choice, Illinois has the 5th lowest all-in commercial average. The regulator is the Illinois Commerce Commission. Voltcheckr LLC is registered as an electricity broker in Texas (PUCT Broker Registration BR260102) and is not currently registered in Illinois.
How retail electricity choice works in Illinois
Illinois businesses in ComEd territory (Chicago and northern Illinois) and Ameren Illinois territory (central and southern Illinois) can buy their electricity supply from an alternative retail electric supplier certified by the ICC, while the utility keeps delivering the power and sending the bill. A business that never chooses stays on the utility's own supply rate. The ICC also certifies agents, brokers and consultants as their own class. Cities with a municipal utility, such as Springfield and Naperville, sit outside the choice program.
Delivery utilities under retail choice
- ComEd
- Ameren Illinois
Regulator
Illinois Commerce Commission (ICC). icc.illinois.gov
Broker registration
Voltcheckr LLC is registered as an electricity broker in Texas (PUCT Broker Registration BR260102) and is not currently registered in Illinois. The figures on this page are market data with their source and date, not an offer of brokerage services in Illinois. Questions about retail choice in Illinois go to the Illinois Commerce Commission (ICC). Questions or complaints about Voltcheckr LLC's Texas registration go to the Public Utility Commission of Texas, Customer Protection Division, (512) 936-7120 or toll free 1-888-782-8477, customer@puc.texas.gov. Our broker disclosures state how we are paid.
Commercial electricity by city in Illinois
Each city page names the delivery utility a business there sees on its bill. Cities served by a municipal utility are marked; a business there buys from the utility and cannot contract a retail supplier.
Illinois commercial electricity questions
What is the average commercial electricity rate in Illinois?
14.53¢ per kWh all-in (supply and delivery together) for the average Illinois commercial account, versus 14.19¢ nationally (EIA, 06/2026). EIA averages mix small storefronts with large facilities, and supplier contract quotes cover the supply portion only, so the two are not directly comparable.
Can an Illinois business choose its electricity supplier?
Yes. Illinois businesses in ComEd territory (Chicago and northern Illinois) and Ameren Illinois territory (central and southern Illinois) can buy their electricity supply from an alternative retail electric supplier certified by the ICC, while the utility keeps delivering the power and sending the bill. A business that never chooses stays on the utility's own supply rate. The ICC also certifies agents, brokers and consultants as their own class. Cities with a municipal utility, such as Springfield and Naperville, sit outside the choice program.
Who regulates electricity brokers and suppliers in Illinois?
The Illinois Commerce Commission (ICC). Its website is https://icc.illinois.gov.
Is Voltcheckr registered as an electricity broker in Illinois?
No. Voltcheckr LLC is registered as an electricity broker in Texas (PUCT Broker Registration BR260102) and is not currently registered in Illinois. The market data on this page is published for reference and is not an offer of brokerage services in Illinois.
How much electricity does a typical Illinois business use?
About 5,964 kWh a month for the average commercial account (EIA, through 2026), against 6,446 kWh nationally. That is the average across every commercial customer in the state, from a corner store to a hospital, so a specific business can sit far from it.