Naperville, Illinois Power Outage Today

How reliable is Naperville Electric Utility service in Naperville?

Naperville Electric Utility is a city-owned utility with 62,990 customers. In 2024 its customers averaged 0.5 interruptions and 25 minutes (25 minutes) without power, so the average outage lasted 50 minutes.

Outages are infrequent, fewer than one per customer a year, and each was fixed in 50 minutes on average.

For comparison, Illinois as a whole averaged 157 minutes and the United States 614 minutes. That puts Naperville Electric Utility below the state average, which is better.

Among the 19 utilities in Illinois with at least 5,000 customers that report to the federal government, Naperville Electric Utility ranks 3rd for the fewest outage minutes (1 is best). Nationally, 93% of the 926 utilities of that size reported more outage minutes in 2024.

These are the figures the utility itself reported to the US Energy Information Administration (Form EIA-861, 2024) and describe the whole service territory, not one street. Your own address can be better or worse.

Storm season and outages in Naperville

NOAA’s Storm Events Database lists 417 storm reports for DuPage County from 2015 through 2026, most often thunderstorm wind (224), hail (75), flood (51), and flash flood (31). The busiest full year was 2025 with 72 reports and the quietest was 2016 with 7, so the risk changes a lot from one year to the next.

Reports peak in July (126 since 2015), followed by August and June. October is outside those three months, so an outage now is less likely to be weather-related.

NOAA’s own narratives name power outages in 4 storm episodes in DuPage County since 2015, most often in August. That count is a floor, since the database records outages only when a spotter or agency mentions them.

What the most common storm types in Naperville do to the grid:

• Thunderstorm wind. Straight-line wind pushes trees and limbs into distribution lines. These outages are usually local, a street or a neighborhood at a time, and crews clear them circuit by circuit.
• Flood. Floodwater reaches ground-level transformers, meters and low-lying substations. Utilities may shut power off ahead of the water on purpose, and wading near flooded equipment can electrocute.
• Hail. Hail rarely cuts power by itself, but it often arrives with the wind and lightning that do, and it breaks solar panels, windshields and exposed utility equipment.

Storm reports that name Naperville

Within DuPage County, 59 NOAA storm reports since 2015 name Naperville as their location or in their description: thunderstorm wind (28), flood (14), hail (6), and flash flood (5). That is about 14% of the county’s reports. Reports naming Naperville are most common in July. The busiest full year was 2025 with 14. These reports record 11 injuries in total.

Who a power outage hits hardest in Naperville

86.1% of occupied homes in Naperville are heated with piped natural gas, and 11.9% with electricity (US 41.3% electric). A gas furnace still needs electricity for its blower and ignition, so a long winter outage leaves these homes cold too, though a gas supply stays on when the grid fails. Never heat a home with an oven, grill or camp stove indoors.

Residents aged 65 or older are 15.3% of the population in Naperville, close to the US share of 17.2% and 7.2% report a disability (US 13.3%). These are the households most likely to depend on powered medical equipment such as oxygen concentrators, CPAP machines and refrigerated medicine. If someone in your home does, ask Naperville Electric Utility whether it keeps a priority or medical-needs list, and register before the next storm rather than during it.

About the housing: 10.9% of the housing in Naperville was built before 1970 (US 35.5%), so most homes are newer and more of the local lines are likely to be buried or recently replaced.

Median household income in Naperville is $155,105, above the Illinois figure of $83,390, and home generators and batteries are correspondingly more common. If a neighbor runs one, keep the exhaust away from every window and door, including yours.

Source: US Census Bureau, American Community Survey 2020–2024 (housing, heating fuel, age and disability tables).

Backup power and electricity use in Naperville

The average Naperville Electric Utility home used about 762 kWh a month in 2024 (US average 892 kWh), an average draw of 1.0 kW around the clock, and paid about 13.0 cents per kWh (15.1 in the state, 15.8 nationally), roughly $99 a month.

Keeping only the essentials on (a refrigerator, router, a few lights and phone chargers, about 400 watts) through an outage that lasts the average 50 minutes takes less than 1 kWh. A portable power station or a power bank covers that; a generator is more than most households here need for a typical outage.

A generator must never run indoors, in a garage or near a window; generator and food-safety rules are in the power outage guide linked below.

If the power is out in Naperville

About 149,540 people live in Naperville, the 4th largest of the 10 Illinois cities on this site. Report the outage to the utility so a ticket exists for your address, then check Naperville Electric Utility’s outage map for an estimate. If neighbors have power and you do not, report it again: the fault may be on the line to your house alone, which is a separate repair.

Naperville power outage map

Naperville Electric Utility’s outage map has the official restoration estimate for your address; the count above comes from residents. Food and generator safety: power outage guide.

Naperville power outage questions