County annual report · FIPS 17043
2017 DuPage County, IL Power Outage Report
In 2017, customers in DuPage County, IL went without power for an average of 2.3 hours, a total of 716K customer-hours (Illinois average 1.4 hours). That ranks 21st worst of 102 Illinois counties and 1544th of 2,786 nationally.
Compared with IL, the US and 2016
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in DuPage County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 21, 2017 21:30 | July 25, 2017 11:30 | 3d 14h | 14,475 | 176K |
| 2 | May 17, 2017 18:45 | May 20, 2017 09:30 | 2d 14h | 3,626 | 40K |
| 3 | March 6, 2017 14:00 | March 10, 2017 02:00 | 3d 12h | 2,851 | 24K |
| 4 | June 27, 2017 12:30 | June 30, 2017 08:00 | 2d 19h | 2,758 | 28K |
| 5 | April 29, 2017 14:00 | May 2, 2017 05:30 | 2d 15h | 2,418 | 17K |
| 6 | July 18, 2017 11:30 | July 21, 2017 09:30 | 2d 22h | 2,179 | 15K |
| 7 | February 24, 2017 07:30 | February 24, 2017 08:30 | 1h | 2,106 | 1,054 |
| 8 | November 17, 2017 15:00 | November 19, 2017 10:30 | 1d 19h | 2,096 | 7,682 |
| 9 | December 4, 2017 12:30 | December 7, 2017 07:30 | 2d 19h | 1,834 | 55K |
| 10 | June 17, 2017 04:00 | June 17, 2017 06:30 | 2h 30m | 1,785 | 1,948 |
Outage episodes by size in 2017: 223 reached 100+ customers, 42 reached 1,000+ customers, 1 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 2017, 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 | 2017 | 1.6 hrs | 0.82 | 55 min | 0.66 |
| City of Naperville - (IL) | 2017 | 22 min | 0.34 | - | - |
| 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 n/a of Illinois's customers in 2017; 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, 2017, 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/2017/illinois/dupage-county