City of Naperville electricity rates
City of Naperville charges an average of 12.98 cents per kilowatt-hour to residential customers, and the average household on its system paid $99 a month using 762 kilowatt-hours, according to its 2024 filing with the U.S. Energy Information Administration.
Municipal utility PJM Illinois
Where City of Naperville sits
It serves 56,117 residential customers in Illinois. At 12.98¢ per kilowatt-hour it is one of the cheaper places to buy electricity in Illinois, 45.6% under the statewide average of 23.85¢.
Consumption here is below the national norm at 762 kilowatt-hours a month against 871, which softens the effect of the rate on the final bill.
Owned by the city it serves and governed by a local board rather than the state commission. No shareholder return is built into the rate. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.
| Rate | Monthly bill | Monthly kWh | |
|---|---|---|---|
| City of Naperville | 12.98¢ | $99 | 762 |
| Illinois average | 23.85¢ | $132 | 719 |
| United States average | 18.44¢ | $155 | 871 |
Utility figures: U.S. Energy Information Administration, Form EIA-861 annual electric power industry report, 2024. State and national figures: Electric Power Monthly, May 2026. Methodology
Where City of Naperville delivers
Its service territory covers 2 Illinois counties, either wholly or in part. Utility boundaries follow historic franchise agreements rather than county lines, so a county appearing here does not mean every address in it is served by City of Naperville.
- DuPage
- Will
How often the power goes out
In 2024 the average City of Naperville customer went 25 minutes without electricity across 0.5 interruptions. The median across the 941 utilities that report this is 185 minutes.
That is markedly better than typical. Short outage durations usually mean an underground or heavily automated network, and they are expensive to achieve, which is part of why reliable systems often carry higher delivery charges.
Rooftop solar on this system
1,018 residential customers had net-metered solar in 2024, totalling 9.38 megawatts. That works out to 18.1 installations per thousand customers, against a median of 8 across the utilities reporting it.
Adoption is above the national median, which generally tracks the retail rate more closely than it tracks sunshine. What exports are actually worth.
Other Illinois utilities
| Utility | Rate | Bill | Customers |
|---|---|---|---|
| Commonwealth Edison Co | 15.22¢ | $89 | 2.9 million |
| Ameren Illinois Company | 15.26¢ | $130 | 520,498 |
| MidAmerican Energy Co | 9.99¢ | $71 | 73,564 |
| City of Springfield | 11.95¢ | $99 | 59,621 |
| Corn Belt Energy Corporation | 15.76¢ | $144 | 34,710 |
City of Naperville rates: common questions
How much does City of Naperville charge per kilowatt-hour?
An average of 12.98 cents per kilowatt-hour across its residential customers in 2024. That is -45.6% against the Illinois average of 23.85¢ and -29.6% against the national average of 18.44¢. It is an all-in average across every residential rate schedule the utility offers, not a specific tariff.
What is the average City of Naperville bill?
$99 a month, based on total residential revenue divided by residential customers over the 2024 survey year, at an average of 762 kWh a month. The national average bill is $155 at 871 kWh.
Who owns City of Naperville?
It is classified by the EIA as a municipal utility. Owned by the city it serves and governed by a local board rather than the state commission. No shareholder return is built into the rate.
Is City of Naperville expensive compared with other Illinois utilities?
It ranks #22 of the 27 Illinois utilities covered here, counting from the most expensive. Nationally it ranks #794 of 1369.