County annual report · FIPS 55139
2024 Winnebago County, WI Power Outage Report
In 2024, customers in Winnebago County, WI went without power for an average of 2.6 hours, a total of 198K customer-hours (Wisconsin average 4.6 hours). That ranks 42nd worst of 72 Wisconsin counties and 2208th of 2,990 nationally.
Compared with WI, the US and 2023
Coverage line is EAGLE-I's share of Wisconsin 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 | April 2, 2024 21:15 | April 5, 2024 20:30 | 2d 23h | 6,657 | 88K |
| 2 | May 22, 2024 02:00 | May 23, 2024 11:45 | 1d 9h | 4,978 | 21K |
| 3 | August 27, 2024 02:00 | August 28, 2024 18:45 | 1d 16h | 4,766 | 44K |
| 4 | January 17, 2024 18:00 | January 17, 2024 19:30 | 1h 30m | 4,640 | 2,321 |
| 5 | September 23, 2024 21:00 | September 23, 2024 22:15 | 1h 15m | 4,640 | 4,638 |
| 6 | April 22, 2024 20:30 | April 23, 2024 00:00 | 3h 30m | 2,601 | 1,383 |
| 7 | January 10, 2024 19:45 | January 10, 2024 22:15 | 2h 30m | 1,998 | 1,377 |
| 8 | August 2, 2024 00:00 | August 2, 2024 01:45 | 1h 45m | 1,894 | 1,478 |
| 9 | January 18, 2024 11:45 | January 18, 2024 13:00 | 1h 15m | 1,876 | 2,344 |
| 10 | August 1, 2024 16:00 | August 1, 2024 19:30 | 3h 30m | 1,809 | 2,278 |
Outage episodes by size in 2024: 37 reached 100+ customers, 12 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 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2024 | 4.9 hrs | 1.04 | 1.8 hrs | 0.74 |
| Wisconsin Public Service Corp | 2024 | 7.8 hrs | 1.22 | 1.6 hrs | 0.77 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| City of Menasha - (WI) | - | - | - | - | - |
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 Wisconsin's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 74,573 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, WI 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/wisconsin/winnebago-county