County annual report · FIPS 19191
2025 Winneshiek County, IA Power Outage Report
In 2025, customers in Winneshiek County, IA went without power for an average of 1.9 hours, a total of 18K customer-hours (Iowa average 2.9 hours). That ranks 80th worst of 99 Iowa counties and 2452nd of 3,000 nationally.
Compared with IA, the US and 2024
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Winneshiek County, 2025
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 16, 2025 19:45 | May 17, 2025 01:30 | 5h 45m | 1,328 | 1,523 |
| 2 | April 12, 2025 23:30 | April 13, 2025 03:30 | 4h | 1,064 | 4,068 |
| 3 | September 10, 2025 04:30 | September 10, 2025 07:45 | 3h 15m | 758 | 1,139 |
| 4 | July 29, 2025 05:00 | July 29, 2025 23:45 | 18h 45m | 607 | 2,602 |
| 5 | May 22, 2025 14:30 | May 22, 2025 16:00 | 1h 30m | 553 | 703 |
| 6 | March 5, 2025 15:30 | March 5, 2025 18:00 | 2h 30m | 504 | 509 |
| 7 | November 11, 2025 13:45 | November 11, 2025 15:30 | 1h 45m | 182 | 201 |
| 8 | March 19, 2025 21:00 | March 20, 2025 05:30 | 8h 30m | 166 | 718 |
| 9 | August 2, 2025 18:45 | August 4, 2025 15:15 | 1d 20h | 142 | 613 |
| 10 | August 9, 2025 16:15 | August 9, 2025 21:00 | 4h 45m | 139 | 519 |
Outage episodes by size in 2025: 11 reached 100+ customers, 2 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 Winneshiek County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| MiEnergy Cooperative | 2024 | 85 min | 0.70 | 64 min | 0.60 |
| Allamakee-Clayton El Coop, Inc | 2018 | 1.5 hrs | 0.73 | 1.5 hrs | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,369 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. Winneshiek County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Winneshiek County, IA annual power outage report, 2025, 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/2025/iowa/winneshiek-county