County annual report · FIPS 17201
2019 Winnebago County, IL Power Outage Report
In 2019, customers in Winnebago County, IL went without power for an average of 2.7 hours, a total of 324K customer-hours (Illinois average 1.8 hours). That ranks 49th worst of 102 Illinois counties and 1760th 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 Winnebago 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 18:00 | July 4, 2019 03:00 | 3d 9h | 8,795 | 102K |
| 2 | July 20, 2019 16:00 | July 22, 2019 03:00 | 1d 11h | 7,737 | 45K |
| 3 | February 7, 2019 09:00 | February 8, 2019 23:30 | 1d 14h | 4,425 | 33K |
| 4 | April 16, 2019 14:00 | April 16, 2019 20:00 | 6h | 3,489 | 1,821 |
| 5 | February 11, 2019 10:00 | February 11, 2019 17:00 | 7h | 1,709 | 6,428 |
| 6 | September 13, 2019 04:00 | September 14, 2019 03:30 | 23h 30m | 1,425 | 10K |
| 7 | June 14, 2019 17:30 | June 15, 2019 00:00 | 6h 30m | 1,359 | 2,657 |
| 8 | April 27, 2019 21:00 | April 28, 2019 20:30 | 23h 30m | 1,340 | 5,926 |
| 9 | December 9, 2019 21:45 | December 10, 2019 05:15 | 7h 30m | 1,303 | 625 |
| 10 | June 27, 2019 14:00 | June 28, 2019 22:00 | 1d 8h | 1,286 | 5,574 |
Outage episodes by size in 2019: 119 reached 100+ customers, 15 reached 1,000+ customers, 0 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 Winnebago 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 |
| Rock Energy Cooperative | - | - | - | - | - |
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 ÷ 120,789 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. Winnebago County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Winnebago 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/winnebago-county