County annual report · FIPS 17043
2019 DuPage County, IL Power Outage Report
In 2019, customers in DuPage County, IL went without power for an average of 1.9 hours, a total of 596K customer-hours (Illinois average 1.8 hours). That ranks 66th worst of 102 Illinois counties and 2086th of 2,945 nationally.
Compared with IL, the US and 2018
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in DuPage County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 30, 2019 02:30 | July 4, 2019 05:30 | 4d 3h | 14,644 | 122K |
| 2 | December 9, 2019 22:45 | December 10, 2019 03:15 | 4h 30m | 13,268 | 17K |
| 3 | October 30, 2019 10:30 | November 1, 2019 05:00 | 1d 18h | 10,103 | 55K |
| 4 | August 18, 2019 12:00 | August 19, 2019 10:00 | 22h | 6,545 | 29K |
| 5 | January 13, 2019 02:30 | January 13, 2019 09:30 | 7h | 4,993 | 3,283 |
| 6 | June 26, 2019 11:30 | June 28, 2019 11:00 | 1d 23h | 3,166 | 8,022 |
| 7 | March 9, 2019 18:30 | March 11, 2019 03:00 | 1d 8h | 2,798 | 9,142 |
| 8 | February 11, 2019 15:00 | February 14, 2019 01:00 | 2d 10h | 2,400 | 26K |
| 9 | May 17, 2019 04:00 | May 18, 2019 01:15 | 21h 15m | 2,356 | 13K |
| 10 | February 23, 2019 15:00 | February 25, 2019 12:00 | 1d 21h | 2,346 | 17K |
Outage episodes by size in 2019: 253 reached 100+ customers, 33 reached 1,000+ customers, 3 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving DuPage County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Commonwealth Edison Co | 2018 | 2.0 hrs | 0.82 | 58 min | 0.70 |
| City of Naperville - (IL) | 2018 | 19 min | 0.47 | - | - |
| City of St Charles - (IL) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Illinois's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 313,751 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. DuPage County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), DuPage County, IL annual power outage report, 2019, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2019/illinois/dupage-county