Know Your Power Bill
Reviewed 2026-10-08 Source Final 2025 EIA Form 861 Methodology Editorial standards Report a correction

Illinois utility data · EIA utility 4110

Commonwealth Edison Co residential electricity rate

In finalized 2025 EIA-861 data, Commonwealth Edison Co reported an average 17.71¢ per kWh for bundled residential service in Illinois.

2025 EIA bundled residential average

17.71¢per kWh
Historical annual average—not a current tariff.

EIA derives this average from reported residential revenue and sales. Your actual bill can differ because of current tariffs, fixed charges, taxes, riders, tiers, time-of-use pricing, and other bill components.

Residential customers3,020,1302025 bundled service
Annual use per reported customer7,271 kWhsales ÷ reported customer count
Rate position in Illinois#23 of 27observed bundled providers with at least 1,000 residential customers, lowest to highest annual average
Reported service territory24 countiesEIA distribution-territory records

What “bundled” means

Supply and delivery are reported together.

We only use a provider headline when EIA reports bundled residential service. That makes the annual figure more complete than an energy-only or delivery-only component, but it still does not reproduce the provider's current rate schedule.

Why this page is in the reviewed cohort

Observed data with a reported territory.

This page met our publication criteria for bundled service, observed data, customer scale, a valid price, and county service-territory coverage. We then selected this provider/state pair for the smaller curated utility cohort.

Simple cost examples

What 17.71¢/kWh implies at common usage levels

500 kWh$89
1,000 kWh$177
1,500 kWh$266

These examples multiply usage by the historical annual average. They are not predictions of a Commonwealth Edison Co bill.

Newer state context

Illinois's latest monthly residential average is 19.22¢/kWh.

That statewide figure is from July 2026, while the provider figure above is a 2025 annual average. The periods and populations differ, so this is context rather than a direct tariff comparison. See the Illinois rate page →

Use this historical average

Try 17.71¢/kWh in a calculator

The linked tools prefill this 2025 provider average as an editable electricity price. It remains historical context—not today's tariff.

Electricity billEstimate a monthly bill from kWh EV chargingUse the provider average for home charging Space heaterEstimate heating electricity cost Air conditionerEstimate cooling electricity cost

Reported service territory

Counties associated with Commonwealth Edison Co in Illinois

Boone CountyBureau CountyCarroll CountyCook CountyDeKalb CountyDuPage CountyFord CountyGrundy CountyJo Daviess CountyKane CountyKankakee CountyKendall CountyLaSalle CountyLake CountyLee CountyLivingston CountyMarshall CountyMcHenry CountyOgle CountyStephenson CountyWhiteside CountyWill CountyWinnebago CountyWoodford County

A county appearing in EIA's service-territory file does not mean every address in that county is served by this utility.

Utility details

Investor Owned

EIA utility ID
4110
Balancing authority
PJM
NERC / RTO
RFC, Alt Fuel Vehicle, Alt Fuel Vehicle 2, Bundled, Buying Transmission, Distribution, PJM, Transmission
Residential sales
21,959,442 MWh