County annual report · FIPS 19123
2022 Mahaska County, IA Power Outage Report
In 2022, customers in Mahaska County, IA went without power for an average of 4.8 hours, a total of 39K customer-hours (Iowa average 1.6 hours). That ranks 7th worst of 99 Iowa counties and 1466th of 2,976 nationally.
Compared with IA, the US and 2021
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Mahaska County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 18, 2022 13:30 | March 18, 2022 18:30 | 5h | 3,067 | 4,282 |
| 2 | August 16, 2022 21:00 | August 16, 2022 23:30 | 2h 30m | 2,444 | 3,137 |
| 3 | February 18, 2022 22:45 | February 20, 2022 00:45 | 1d 2h | 2,127 | 16K |
| 4 | April 24, 2022 05:15 | April 24, 2022 07:00 | 1h 45m | 1,555 | 1,310 |
| 5 | October 13, 2022 16:45 | October 13, 2022 23:00 | 6h 15m | 1,399 | 2,676 |
| 6 | August 7, 2022 06:30 | August 7, 2022 11:45 | 5h 15m | 1,385 | 2,258 |
| 7 | March 19, 2022 00:15 | March 19, 2022 05:00 | 4h 45m | 1,271 | 2,328 |
| 8 | May 11, 2022 03:15 | May 11, 2022 06:15 | 3h | 548 | 461 |
| 9 | December 18, 2022 10:30 | December 18, 2022 12:45 | 2h 15m | 519 | 906 |
| 10 | January 7, 2022 13:00 | January 7, 2022 14:00 | 1h | 385 | 384 |
Outage episodes by size in 2022: 19 reached 100+ customers, 7 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 Mahaska County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2022 | 1.8 hrs | 1.03 | 87 min | 0.88 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Interstate Power and Light Co | - | - | - | - | - |
| Pella Cooperative Elec Assn | - | - | - | - | - |
| City of Pella - (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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,162 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. Mahaska County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mahaska County, IA annual power outage report, 2022, 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/2022/iowa/mahaska-county