County annual report · FIPS 19189
2019 Winnebago County, IA Power Outage Report
In 2019, customers in Winnebago County, IA went without power for an average of 14.9 hours, a total of 107K customer-hours (Iowa average 2.2 hours). That ranks 2nd worst of 99 Iowa counties and 336th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa 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 | April 11, 2019 05:15 | April 16, 2019 13:30 | 5d 8h | 2,116 | 93K |
| 2 | March 10, 2019 06:15 | March 10, 2019 08:30 | 2h 15m | 870 | 1,703 |
| 3 | June 21, 2019 10:30 | June 21, 2019 11:15 | 45m | 815 | 611 |
| 4 | July 20, 2019 15:45 | July 22, 2019 12:45 | 1d 21h | 583 | 1,369 |
| 5 | December 1, 2019 12:45 | December 1, 2019 19:15 | 6h 30m | 579 | 731 |
| 6 | June 27, 2019 21:45 | June 28, 2019 09:45 | 12h | 569 | 1,230 |
| 7 | February 12, 2019 18:15 | February 13, 2019 00:30 | 6h 15m | 499 | 496 |
| 8 | December 5, 2019 15:45 | December 5, 2019 22:45 | 7h | 323 | 189 |
| 9 | May 16, 2019 14:00 | May 16, 2019 14:45 | 45m | 263 | 197 |
| 10 | June 28, 2019 20:00 | June 28, 2019 21:45 | 1h 45m | 234 | 359 |
Outage episodes by size in 2019: 21 reached 100+ customers, 1 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2018 | 1.8 hrs | 1.14 | 1.7 hrs | 1.14 |
| Interstate Power and Light Co | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| City of Forest City- (IA) | - | - | - | - | - |
| City of Lake Mills | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 89% of Iowa's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,213 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, IA 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/iowa/winnebago-county