County annual report · FIPS 55139
2019 Winnebago County, WI Power Outage Report
In 2019, customers in Winnebago County, WI went without power for an average of 2.9 hours, a total of 219K customer-hours (Wisconsin average 4.4 hours). That ranks 34th worst of 71 Wisconsin counties and 1676th of 2,945 nationally.
Compared with WI, the US and 2018
Coverage line is EAGLE-I's share of Wisconsin 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 | May 31, 2019 16:00 | May 31, 2019 21:30 | 5h 30m | 9,837 | 4,962 |
| 2 | May 3, 2019 08:45 | May 3, 2019 09:00 | 15m | 7,889 | 1,972 |
| 3 | July 20, 2019 14:00 | July 25, 2019 07:30 | 4d 17h | 6,013 | 143K |
| 4 | June 27, 2019 22:00 | June 28, 2019 10:30 | 12h 30m | 5,796 | 11K |
| 5 | July 3, 2019 01:45 | July 3, 2019 02:00 | 15m | 5,783 | 1,446 |
| 6 | September 20, 2019 17:30 | September 20, 2019 17:45 | 15m | 5,750 | 1,438 |
| 7 | February 5, 2019 13:00 | February 5, 2019 14:45 | 1h 45m | 5,643 | 1,414 |
| 8 | June 2, 2019 13:30 | June 2, 2019 15:00 | 1h 30m | 5,462 | 5,461 |
| 9 | December 15, 2019 09:15 | December 15, 2019 09:30 | 15m | 3,980 | 995 |
| 10 | February 24, 2019 14:45 | February 25, 2019 03:45 | 13h | 3,511 | 986 |
Outage episodes by size in 2019: 46 reached 100+ customers, 24 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2018 | 2.0 hrs | 0.73 | 70 min | 0.59 |
| Wisconsin Public Service Corp | 2018 | 2.0 hrs | 0.97 | 1.8 hrs | 0.94 |
| 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 84% of Wisconsin's customers in 2019; 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, 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/wisconsin/winnebago-county