County annual report · FIPS 17201
2024 Winnebago County, IL Power Outage Report
In 2024, customers in Winnebago County, IL went without power for an average of 4.9 hours, a total of 586K customer-hours (Illinois average 3.0 hours). That ranks 31st worst of 102 Illinois counties and 1644th of 2,990 nationally.
Compared with IL, the US and 2023
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Winnebago County, 2024
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 14, 2024 02:45 | July 20, 2024 08:30 | 6d 5h | 17,055 | 455K |
| 2 | May 21, 2024 13:30 | May 23, 2024 00:45 | 1d 11h | 2,519 | 22K |
| 3 | June 16, 2024 15:45 | June 18, 2024 01:30 | 1d 9h | 1,955 | 13K |
| 4 | November 20, 2024 04:00 | November 20, 2024 04:30 | 30m | 1,706 | 428 |
| 5 | May 29, 2024 08:00 | May 29, 2024 08:45 | 45m | 1,632 | 898 |
| 6 | December 4, 2024 14:45 | December 5, 2024 12:15 | 21h 30m | 1,411 | 5,852 |
| 7 | June 15, 2024 10:45 | June 15, 2024 15:15 | 4h 30m | 1,382 | 1,887 |
| 8 | March 3, 2024 19:30 | March 4, 2024 08:00 | 12h 30m | 1,226 | 2,635 |
| 9 | May 24, 2024 12:30 | May 25, 2024 09:45 | 21h 15m | 1,153 | 3,112 |
| 10 | February 24, 2024 17:00 | February 24, 2024 19:00 | 2h | 1,073 | 1,341 |
Outage episodes by size in 2024: 112 reached 100+ customers, 10 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 Winnebago County reported on EIA Form 861 for 2024, 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 | 2024 | 2.2 hrs | 0.68 | 36 min | 0.49 |
| Rock Energy Cooperative | 2024 | 53 min | 0.48 | 27 min | 0.36 |
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 2024; 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, 2024, 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/2024/illinois/winnebago-county