County annual report · FIPS 19191
2021 Winneshiek County, IA Power Outage Report
In 2021, customers in Winneshiek County, IA went without power for an average of 11.5 hours, a total of 108K customer-hours (Iowa average 2.7 hours). That ranks 9th worst of 99 Iowa counties and 699th of 2,974 nationally.
Compared with IA, the US and 2020
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Winneshiek County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 16, 2021 01:45 | December 17, 2021 05:00 | 1d 3h | 5,083 | 84K |
| 2 | August 28, 2021 00:15 | August 28, 2021 11:30 | 11h 15m | 2,857 | 7,099 |
| 3 | October 23, 2021 18:00 | October 23, 2021 21:00 | 3h | 871 | 1,307 |
| 4 | January 15, 2021 09:30 | January 15, 2021 19:00 | 9h 30m | 843 | 750 |
| 5 | December 11, 2021 09:30 | December 11, 2021 20:00 | 10h 30m | 802 | 3,883 |
| 6 | August 31, 2021 12:15 | August 31, 2021 14:30 | 2h 15m | 791 | 399 |
| 7 | June 7, 2021 15:45 | June 8, 2021 00:45 | 9h | 556 | 739 |
| 8 | July 6, 2021 17:15 | July 6, 2021 21:00 | 3h 45m | 539 | 946 |
| 9 | December 18, 2021 17:30 | December 18, 2021 21:45 | 4h 15m | 425 | 648 |
| 10 | November 23, 2021 19:30 | November 23, 2021 21:15 | 1h 45m | 334 | 585 |
Outage episodes by size in 2021: 19 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 2021, 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 | 2021 | 2.5 hrs | 1.30 | 83 min | 0.85 |
| 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 91% of Iowa's customers in 2021; 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, 2021, 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/2021/iowa/winneshiek-county