City of Naperville Electric Rates and Average Monthly Bill

City of Naperville reported 57,225 residential customers on bundled service in 2025, using 769 kWh a month on average at 14.61 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 18 Illinois utilities with at least 10,000 bundled residential customers, City of Naperville ranks 6 from the lowest price.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

EIA lists the counties where City of Naperville has distribution equipment. That covers 2 counties in Illinois. A county can be served by more than one utility, so confirm your address with the utility or your bill.

Not sure who serves your address? Use find my electric company.

• Time-of-use pricing. City of Naperville does not report a residential time-of-use program in its 2025 EIA filing. Ask the utility, because programs change. How time-of-use rates work.
• Rooftop solar and net metering. EIA shows 1,252 residential net-metered systems on the City of Naperville grid in 2025, with 11.2 megawatts of capacity. How net metering works.

Owned and run by a city or town. A city council or utility board usually sets the rates, and state commissions often have limited authority over it.

For questions about state consumer protections, see the Illinois Commerce Commission.

City of Naperville is a municipal utility based in Illinois.

City of Naperville operates in the PJM power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.

Of the 23 utilities listed for Illinois, City of Naperville is the 4th largest by homes, at roughly 1.1% of the state total. Its price of 14.61 cents per kWh is 1.50 cents above the median of 6 other municipal utilities in Illinois (13.11 cents). Over a year, the typical City of Naperville bill runs about $171 below the state average, with monthly use 53 kWh higher. City of Naperville lists distribution equipment in 2 counties, so check your county and your bill before you assume it serves you. 1,252 of its residential customers use net metering, or 21.9 per 1,000 homes, against 22.9 for Illinois as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in Illinois with at least 1,000 residential customers and a reported price.

See every one on the electric companies in Illinois page.

Kilowatt Atlas is not City of Naperville and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

• Want to understand a line on your bill? Read how to read your electric bill.
• Think your bill is high? Try the bill checker.
• Illinois allows retail choice in part or all of the state. See the provider guide.