County annual report · FIPS 19131
2021 Mitchell County, IA Power Outage Report
In 2021, customers in Mitchell County, IA went without power for an average of 10.3 hours, a total of 66K customer-hours (Iowa average 2.7 hours). That ranks 11th worst of 99 Iowa counties and 762nd 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 Mitchell 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 01:15 | December 18, 2021 22:45 | 2d 21h | 2,842 | 58K |
| 2 | May 27, 2021 16:15 | May 27, 2021 21:45 | 5h 30m | 384 | 802 |
| 3 | August 27, 2021 22:00 | August 29, 2021 02:45 | 1d 4h | 328 | 1,836 |
| 4 | May 29, 2021 07:15 | May 29, 2021 13:15 | 6h | 289 | 1,150 |
| 5 | August 27, 2021 07:45 | August 27, 2021 11:45 | 4h | 240 | 434 |
| 6 | July 4, 2021 12:30 | July 4, 2021 13:15 | 45m | 224 | 75 |
| 7 | November 11, 2021 16:45 | November 11, 2021 18:45 | 2h | 116 | 146 |
| 8 | October 2, 2021 01:15 | October 2, 2021 03:45 | 2h 30m | 99 | 246 |
| 9 | June 26, 2021 13:30 | June 26, 2021 14:15 | 45m | 96 | 72 |
| 10 | December 22, 2021 14:45 | December 22, 2021 22:15 | 7h 30m | 83 | 31 |
Outage episodes by size in 2021: 7 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 Mitchell 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2021 | 3.2 hrs | 0.80 | 35 min | 0.39 |
| MiEnergy Cooperative | 2021 | 2.5 hrs | 1.30 | 83 min | 0.85 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| City of Osage - (IA) | - | - | - | - | - |
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 ÷ 6,347 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. Mitchell County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mitchell 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/mitchell-county