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Judy Saves

Illinois price index: November 2026

The standard price is what you pay if you never picked another company. Next to it is the lowest price you can lock for 6 months or more on the state’s list.

Locked prices are worked out for a typical home, with monthly fees included. Teaser prices are left out.

Electric companies

For a home that uses 1,000 kWh a month.

  • Ameren Illinois

    Standard price
    10.44 cents per kWh
    Lowest locked price
    13 cents per kWhSmartEnergy Holdings, LLC
    Lowest against standard
    25% higher
    Locked plans cheaper than standard
    0 of 5

  • ComEd

    Standard price
    10.1 cents per kWh
    Lowest locked price
    10.3 cents per kWhCleanChoice Energy, Inc.
    Lowest against standard
    2% higher
    Locked plans cheaper than standard
    0 of 38

Gas companies

For a home that uses 800 therms a year.

  • Nicor Gas

    Standard price
    31 cents per therm
    Lowest locked price
    36.43 cents per thermSantanna Energy Services
    Lowest against standard
    18% higher
    Locked plans cheaper than standard
    0 of 19

  • North Shore Gas

    Standard price
    39.23 cents per therm
    Lowest locked price
    36.05 cents per thermSantanna Energy Services
    Lowest against standard
    8% lower
    Locked plans cheaper than standard
    1 of 18

  • Peoples Gas

    Standard price
    35.18 cents per therm
    Lowest locked price
    36.01 cents per thermSantanna Energy Services
    Lowest against standard
    2% higher
    Locked plans cheaper than standard
    0 of 19

Month by month

We save these numbers once a month. Earlier months show here once they are saved.

Where these come from

Locked prices come from Plug In Illinois (plugin.illinois.gov). We check every 2 hours.