📍 Illinois Energy Guide

Gas & Electricity Rates in Illinois

Illinois is a deregulated state where residents can shop for electricity supply. ComEd serves northern Illinois including Chicago, while Ameren serves the southern portion. Natural gas is the dominant heating fuel.

23.85¢/kWh
Avg. Electric Rate
$1.06/therm
Avg. Gas Rate
$123
Monthly Electric Bill
$94
Monthly Gas Bill

Advertisement

Electricity Rate
23.85¢/kWh
per kilowatt-hour
🔥
Natural Gas Rate
$1.06/therm
per therm
🧾
Avg Electric Bill
$123
per month
💰
Avg Gas Bill
$94
per month

Understanding Energy in Illinois

Illinois is a deregulated state where residents can shop for electricity supply. ComEd serves northern Illinois including Chicago, while Ameren serves the southern portion. Natural gas is the dominant heating fuel.

Illinois operates a deregulated electricity market, meaning you can choose your electricity supplier and potentially save money by shopping for competitive rates. Your utility still delivers the electricity — they just don't set the supply price. Visit your state's official electricity shopping portal to compare offers.

The state's primary electric utilities include ComEd (Commonwealth Edison), Ameren Illinois. Natural gas distribution is handled by Peoples Gas, North Shore Gas, Nicor Gas, Ameren Illinois. Illinois's climate — cold winters, hot humid summers — is one of the main drivers of annual energy consumption patterns for households.

🛒 Competitive Electricity Market

Illinois operates a deregulated electricity market, meaning you can choose your electricity supplier and potentially save money by shopping for competitive rates. Your utility still delivers the electricity — they just don't set the supply price. Visit your state's official electricity shopping portal to compare offers.

Visit Illinois Commerce Commission (ICC) for a list of approved electricity suppliers in your service territory.

Electric Utilities in Illinois

The following utilities operate in Illinois. Your specific provider depends on your address.

  • ComEd (Commonwealth Edison)
  • Ameren Illinois

Natural Gas Utilities in Illinois

  • Peoples Gas
  • North Shore Gas
  • Nicor Gas
  • Ameren Illinois

Advertisement

Energy Assistance Programs in Illinois

Low-income households and those facing energy emergencies may qualify for these programs:

  • Illinois Home Weatherization Assistance Program (IHWAP)
  • LIHEAP Illinois
  • ComEd Energy Efficiency Program
  • Ameren Illinois ActOnEnergy
ℹ️ To apply for LIHEAP (Low Income Home Energy Assistance Program) in Illinois, contact your local community action agency or visit the state's Department of Health & Human Services website.

Energy Saving Tips for Illinois Residents

These tips are tailored to Illinois's climate — cold winters, hot humid summers:

  • Winterize your pipes and insulate your water heater for cold months.
  • Install a programmable thermostat and set heating schedules around your work day.
  • Check that your furnace filter is replaced monthly during peak heating season.
  • Add weatherstripping to exterior doors — a common source of heat loss in older Midwest homes.
  • Consider shopping for a competitive electricity supplier in deregulated Ohio, Illinois markets.
  • Sign up for your utility's budget billing to spread costs evenly throughout the year.
  • Look into PIPP (Ohio) or CAP (Pennsylvania) programs for income-qualified bill assistance.

Gas & Electricity Rates by City in Illinois

Select a city to view local utility rates, providers, and energy programs.

All Cities & Towns in Illinois

Gas and electricity information for all 1,205 cities and towns in Illinois. Jump to a letter or browse the full list.

Q

X

Frequently Asked Questions — Illinois Energy

  • The average residential electricity rate in Illinois is approximately 23.85¢/kWh, compared to the national average of around 16¢/kWh. The average monthly electricity bill is $123.
  • The average residential natural gas rate in Illinois is approximately $1.06/therm per therm. The typical monthly gas bill is $94, though this varies significantly by season.
  • The primary electric utilities serving Illinois include ComEd (Commonwealth Edison), Ameren Illinois. The right utility for you depends on your specific address.
  • Yes — Illinois is a deregulated electricity market, allowing you to shop for a competitive electricity supplier.
  • Illinois residents may qualify for several assistance programs including Illinois Home Weatherization Assistance Program (IHWAP), LIHEAP Illinois. Contact your utility or the state energy office for eligibility details.
  • To reduce your energy bills in Illinois: schedule a free energy audit through your utility, check for state weatherization assistance, upgrade to LED lighting, and optimize your thermostat settings. You can also shop for a lower-cost electricity supplier.
⚖️ Energy rates in Illinois are regulated by the Illinois Commerce Commission (ICC). Residents can file complaints or inquire about rates and billing by contacting the commission directly.