County annual report · FIPS 19189
2024 Winnebago County, IA Power Outage Report
In 2024, customers in Winnebago County, IA went without power for an average of 1.4 hours, a total of 9,823 customer-hours (Iowa average 3.2 hours). That ranks 86th worst of 99 Iowa counties and 2608th of 2,990 nationally.
Compared with IA, the US and 2023
Coverage line is EAGLE-I's share of Iowa 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 | May 15, 2024 14:45 | May 15, 2024 15:45 | 1h | 472 | 195 |
| 2 | February 24, 2024 04:30 | February 27, 2024 20:00 | 3d 15h | 436 | 1,998 |
| 3 | November 16, 2024 06:00 | November 16, 2024 22:00 | 16h | 290 | 420 |
| 4 | May 7, 2024 06:45 | May 7, 2024 09:15 | 2h 30m | 91 | 218 |
| 5 | March 18, 2024 16:30 | March 18, 2024 20:45 | 4h 15m | 77 | 157 |
| 6 | May 21, 2024 21:30 | May 22, 2024 12:15 | 14h 45m | 75 | 174 |
| 7 | June 24, 2024 13:45 | June 24, 2024 19:15 | 5h 30m | 58 | 52 |
| 8 | June 28, 2024 09:45 | July 1, 2024 14:15 | 3d 4h | 46 | 370 |
| 9 | February 22, 2024 19:00 | February 22, 2024 19:30 | 30m | 42 | 21 |
| 10 | June 22, 2024 18:00 | June 22, 2024 19:30 | 1h 30m | 42 | 39 |
Outage episodes by size in 2024: 3 reached 100+ customers, 0 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2024 | 65 min | 0.73 | 61 min | 0.71 |
| 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 n/a of Iowa's customers in 2024; 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, 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/iowa/winnebago-county