County annual report · FIPS 55139
2015 Winnebago County, WI Power Outage Report
In 2015, customers in Winnebago County, WI went without power for an average of 1.3 hours, a total of 100K customer-hours (Wisconsin average 1.5 hours). That ranks 39th worst of 71 Wisconsin counties and 1580th of 2,484 nationally.
Compared with WI, the US
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Winnebago County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 21, 2015 15:00 | January 21, 2015 15:15 | 15m | 6,499 | 1,625 |
| 2 | October 18, 2015 15:15 | October 18, 2015 19:30 | 4h 15m | 4,651 | 8,440 |
| 3 | July 18, 2015 10:45 | July 18, 2015 23:30 | 12h 45m | 4,622 | 14K |
| 4 | February 16, 2015 15:15 | February 16, 2015 18:15 | 3h | 4,505 | 1,465 |
| 5 | November 17, 2015 22:45 | November 18, 2015 06:30 | 7h 45m | 3,939 | 4,247 |
| 6 | August 28, 2015 15:30 | August 28, 2015 15:45 | 15m | 2,864 | 716 |
| 7 | July 13, 2015 09:00 | July 14, 2015 05:30 | 20h 30m | 2,826 | 12K |
| 8 | July 2, 2015 19:45 | July 2, 2015 20:30 | 45m | 2,453 | 1,227 |
| 9 | September 9, 2015 19:15 | September 13, 2015 15:45 | 3d 20h | 2,451 | 1,341 |
| 10 | September 15, 2015 13:45 | September 15, 2015 20:15 | 6h 30m | 2,451 | 7,355 |
Outage episodes by size in 2015: 49 reached 100+ customers, 22 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 2015, 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 | 2015 | 2.1 hrs | 1.63 | 1.8 hrs | 1.38 |
| Wisconsin Public Service Corp | 2015 | 2.7 hrs | 1.09 | 2.0 hrs | 0.91 |
| 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 2015; 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, 2015, 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/2015/wisconsin/winnebago-county